NameBlázquez Gámez, Javier Sebastián
DepartmentFísica de la Materia Condensada
Knowledge areaFísica de la Materia Condensada
Professional categoryCatedrático de Universidad
E-mailRequest
           
  • No. publications

    126

  • No. visits

    12277

  • No. downloads

    19420


 

Article
Icon

Ultraslow calorimetric studies of the martensitic transformation of NiFeGa alloys: detection and analysis of avalanche phenomena

Martín Olalla, José María; Vidal Crespo, Antonio; Romero Landa, Francisco Javier; Manchón Gordón, Alejandro F.; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Gallardo Cruz, María del Carmen; Conde Amiano, Clara Francisca (Springer Nature, 2024)
We study the thermal properties of a bulk Ni55 Fe19 Ga26 Heusler alloy in a conduction calorimeter. At slow heating and ...
Article
Icon

Study of Stability and Thermo-magnetic Response of MnCoFeGeSi Mechanically Alloyed Systems

Vidal Crespo, Antonio; Caballero Flores, Rafael; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Romero Landa, Francisco Javier; Conde Amiano, Clara Francisca (Elsevier, 2024)
Amorphous precursors with the composition MnCo0.8Fe0.2Ge1-xSix, where x = 0.2, 0.3, 0.4, and 0.6, were obtained through ...
Article
Icon

Mechanical Alloying as a Way to Produce Metastable Single-Phase High-Entropy Alloys beyond the Stability Criteria

Santiago Andrades, Lucía; Vidal Crespo, Antonio; Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Conde Amiano, Clara Francisca (MDPI, 2023)
Various stability criteria developed for high-entropy alloys are applied to compositions produced by mechanical alloying. ...
Article
Icon

Evolution of number of citations per article in Materials Science: possible causes and effect on the impact factor of journals

Ariza Guerrero, Ana María; Blázquez Gámez, Javier Sebastián (Springer, 2023)
An overall rise in the citation parameters used in the metrics of scientifc publications (i.e. journal impact factor, JIF) ...
Article
IconIcon

Thermal Arrest Analysis of the Reverse Martensitic Transformation in a Ni55Fe19Ga26 Heusler Alloy Obtained by Melt-spinning

Vidal Crespo, Antonio; Manchón Gordón, A. F.; Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Svec, P.; Conde Amiano, Clara Francisca (Springer Nature, 2023)
Ni55Fe19Ga26 ribbons obtained by melt-spinning technique exhibit a martensitic transformation from L21 cubic austenite ...
Article
Icon

On the order of magnetic transition in MnCo1−xFexGe (x = 0.20, 0.06 and 0.03) mechanical alloys

Vidal Crespo, Antonio; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca (Elsevier, 2023)
Mechanically amorphized MnCo1−xFexGe alloys (x = 0.20, 0.06 and 0.03) were used as precursors to obtain hexagonal austenite ...
Article
Icon

Structural, Vibrational, and Magnetic Characterization of Orthoferrite LaFeO3 Ceramic Prepared by Reaction Flash Sintering

Manchón Gordón, Alejandro F.; Sánchez Jiménez, Pedro Enrique; Blázquez Gámez, Javier Sebastián; Perejón Pazo, Antonio; Pérez Maqueda, Luis A. (Multidisciplinary Digital Publishing Institute (MDPI), 2023)
LaFeO3 perovskite ceramics have been prepared via reaction flash technique using Fe2O3 and La2O3 as precursors. The obtained ...
Article
Icon

Reversibility and Thermal Dependence of the Martensitic Transformation in a Melt-spun Ni55Fe17Ga26Co2 Heusler Alloy

Manchón Gordón, A. F.; Vidal Crespo, Antonio; Blázquez Gámez, Javier Sebastián; Kowalczyk, M.; Ipus Bados, Jhon Jairo; Kulik, T.; Conde Amiano, Clara Francisca (Elsevier, 2023)
An almost single phase 14 M modulated martensite is obtained in melt spun ribbon of Ni55Fe17Ga26Co2 Heusler alloy. The ...
Article
Icon

A practical Analysis for Decelerated Growth Processes to Get Physically Meaningful Kinetic Parameters from Classical Nucleation and Growth Theory Despite of Overgrowth

Blázquez Gámez, Javier Sebastián; Caballero Flores, Rafael; Manchón Gordón, A. F.; Borrego Moro, Josefa María; Conde Amiano, Clara Francisca (Elsevier, 2023)
We have analyzed the overgrowth problem arising in decelerated growth processes of spherical crystals in the frame of ...
Article
Icon

Touch-free reactive flash sintering of dense strontium hexaferrite permanent magnet

Jalali, Syed I.A.; Manchón-Gordón, Alejandro F.; Chacartegui, Ricardo; Sánchez Jiménez, Pedro Enrique; Blázquez Gámez, Javier Sebastián; Escamilla Perejón, Antonio; Raj, Rishi; Pérez-Maqueda, Luis Allan (John Wiley and Sons, 2023)
This work presents an extension of the touch-free flash sintering technique. In the proposed technique, chemical reaction ...
Article
Icon

Effect of Thermal Treatments Below Devitrification Temperature on the Magnetic and Magnetocaloric Properties in Mechanically Alloyed Fe70Zr30 Powders

Manchón Gordón, A. F.; Blázquez Gámez, Javier Sebastián; Kowalczyk, M.; Ipus Bados, Jhon Jairo; Kulik, T.; Conde Amiano, Clara Francisca (Elsevier, 2023)
In this work, the relaxation of the amorphous structure of mechanically alloyed Fe70Zr30 powders has been analyzed through ...
Article
Icon

A Simple Phenomenological Model to Describe Stability of Homogeneous Solid Solutions in High Entropy Alloys from Metallic Bonding Potential

Blázquez Gámez, Javier Sebastián; García Pinto, N.; Conde Amiano, Clara Francisca (Elsevier, 2023)
A simple model based on the potential parameters used to describe metallic bonding is extended to solid solu- tions. A ...
Final Degree Project
Icon

Caracterización magnética y estructural de aleaciones de alta entropía ricas en hierro producidas por aleado mecánico

Santiago Andrades, Lucía; Blázquez Gámez, Javier Sebastián (2023)
Las aleaciones de alta entropía (HEAs) se han convertido en una de las líneas de investigación punteras de la ´ultima ...
Article
Icon

Kinetic Analysis of Non-isothermal Volume Melting Processes by Differential Scanning Calorimetry

Blázquez Gámez, Javier Sebastián; Borrego Moro, Josefa María; Conde Amiano, Clara Francisca (Springer Nature, 2023)
The onset of melting of standard samples, ascribed to surface melting, is generally used for calibration of calorimeters. ...
Final Degree Project
Icon

Análisis de aleaciones de alta entropía a partir del comportamiento de metales puros

García Pinto, Nicolás; Blázquez Gámez, Javier Sebastián (2022)
Article
Icon

Reactive flash sintering of SrFe12O19 ceramic permanent magnets

Manchón Gordón, Alejandro F.; Sánchez Jiménez, Pedro Enrique; Blázquez Gámez, Javier Sebastián; Perejón Pazo, Antonio; Pérez Maqueda, Luis Allan (Elsevier, 2022)
Reactive flash-sintering technique has been used in order to obtain strontium ferrite magnets from a mixture of SrCO3 and ...
Article
Icon

A Review of Different Models Derived from Classical Kolmogorov, Johnson and Mehl, and Avrami (KJMA) Theory to Recover Physical Meaning in Solid-State Transformations

Blázquez Gámez, Javier Sebastián; Romero Landa, Francisco Javier; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Wiley, 2022)
The classical theory of solid-state transformation based on nucleation and growth processes, developed by Kolmogorov, ...
Article
Icon

Thermo-magnetic characterization of phase transitions in a Ni-Mn-In metamagnetic shape memory alloy

Romero Landa, Francisco Javier; Martín Olalla, José María; Blázquez Gámez, Javier Sebastián; Gallardo Cruz, María del Carmen; Soto-Parra, Daniel; Vives, Eduard; Planes, Antoni (Elsevier, 2021)
The partially overlapped ferroelastic/martensitic and para-ferromagnetic phase transitions of a Ni50.53Mn33.65In15.82 ...
PhD Thesis
Icon

Estudio magnetoestructural y cinético de las transiciones de fase en estado sólido de aleaciones metaestables basadas en Fe

Manchón Gordón, Alejandro F.; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca (2021)
Esta tesis se centra en el análisis de las transformaciones de fase en estado sólido que exhiben ciertas aleaciones ...
Article
Icon

Combined kinetic and Bean–Rodbell approach for describing field-induced transitions in LaFe11.6Si1.4 alloys

Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Radulov, I. A.; Skokov, K. P.; Gutfleisch, Oliver; Franco García, Victorino; Conde Amiano, Alejandro (Institute of Physics Publishing, 2021)
We propose a combination of the Kolmogorov–Johnson–Mehl–Avrami nucleation and growth theory and the Bean–Rodbell model to ...
Final Degree Project
Icon

Simulación de espectros y recuperación de los parámetros hiperfinos en espectroscopía Mössbauer

Sivianes Castaño, Javier; Blázquez Gámez, Javier Sebastián (2021)
Article
Icon

Kinetic Analysis of the Transformation from 14M Martensite to L21 Austenite in Ni-Fe-Ga Melt Spun Ribbons

Manchón Gordón, Alejandro F.; López Martín, Raúl; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Svec, Sr. Peter; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Multidisciplinary Digital Publishing Institute (MDPI), 2021)
In this study, the non-isothermal kinetics of the martensitic transition from 14M modulated martensite to austenite phase ...
Article
Icon

Comparative study of structural and magnetic properties of ribbon and bulk Ni55Fe19Ga26 Heusler alloy

Manchón Gordón, Alejandro F.; Ipus Bados, Jhon Jairo; Kowalczyk, M.; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Švec, P.; Kulik, T.; Conde Amiano, Alejandro (Elsevier, 2021)
The influence of the fabrication method on the magnetostructural properties of a Ni55Fe19Ga26 Heusler alloy, ...
Final Degree Project
Icon

Modelos de densidades electrónicas simples para describir los factores de dispersión atómicos

Zurita Caballero, Alejandro; Blázquez Gámez, Javier Sebastián (2021)
La dispersión de rayos X es un fenómeno muy importante a tener en cuenta en la física actual. Conociendo cómo se comporta ...
Final Degree Project
Icon

Introducción a los sistemas de alta entropía: Propiedades estructurales

Javier Olivares Herrador, Javier; Blázquez Gámez, Javier Sebastián (2020)
El objetivo de este trabajo es presentar y estudiar las aleaciones de alta entropía (HEAs). Dado que ´estas destacan por ...
Article
Icon

Influence of Milling Time on the Homogeneity and Magnetism of a Fe70Zr30 Partially Amorphous Alloy: Distribution of Curie Temperatures

Manchón Gordón, Alejandro F.; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro; Conde Amiano, Clara Francisca (MDPI, 2020)
In this work, the mechanically alloyed Fe70Zr30 (at. %) composition has been used to study the influence of milling time ...
Article
Icon

Obtaining magnetocaloric MnCo(Fe)Ge intermetallics from low temperature treatment of mechanically alloyed precursors

Vidal Crespo, Antonio; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro (Elsevier, 2020)
Production of the intermetallic MnCo0.8Fe0.2Ge phase, interesting as magnetocaloric material, is obtained by using an ...
Article
Icon

Devitrification of Mechanically Alloyed Fe-Nb System: Mössbauer Study of the Intermetallic Phases

Manchón Gordón, Alejandro F.; Svec, P.; Ipus Bados, Jhon Jairo; Kowalczyk, M.; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Svec, P.; Kulik, T. (Springer Nature, 2020)
Intermetallic phases in the Fe-Nb system have been obtained as products of the devitrification of a homogeneous amorphous ...
Article
Icon

Distribution of transition temperatures in magnetic transformations: Sources, effects and procedures to extract information from experimental data

Manchón Gordón, Alejandro F.; López Martín, Raúl; Vidal Crespo, Antonio; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Multidisciplinary Digital Publishing Institute (MDPI), 2020)
The presence of a distribution of transition temperatures (DTT) is ubiquitous in materials science. It is common to ascribe ...
Article
Icon

Study of the Kinetics and Products of the Devitrification Process of Mechanically Amorphized Fe70Zr30 Alloy

Manchón Gordón, Ángel; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Svec, P. (Elsevier, 2020)
Devitrification of mechanically alloyed amorphous Fe70Zr30 at. % compound consists on a two-step process: amorphous → ...
Article
Icon

Effect of Pressure on the Phase Stability and Magnetostructural Transitions in Nickel-rich NiFeGa Ribbons

Manchón Gordón, Alejandro F.; Ipus Bados, Jhon Jairo; Kowalczyk, M.; Wójcik, A.; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Maziarz, W.; Švec, P.; Kulik, T.; Conde Amiano, Alejandro (Elsevier, 2020)
Ribbons of a Ni55Fe19Ga26 Heusler alloy were prepared by melt spinning technique. The effect of pressure on magnetostructural ...
Article
Icon

Milling effects on the distribution of Curie temperatures and magnetic properties of Ni-doped La0·7Ca0·3MnO3 compounds

Manchón Gordón, Alejandro F.; Gómez, Adrián; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2020)
A systematic study of the magnetic and magnetocaloric properties around the ferromagnetic-paramagnetic phase transition ...
Article
Icon

Mechanical Amorphization and Recrystallization of Mn-Co(Fe)-Ge(Si) Compositions

Vidal Crespo, Antonio; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro (MDPI, 2019)
Mechanical alloying using a planetary ball mill allowed us to obtain two homogeneous systems formed by units with nanometer ...
Article
Icon

A procedure to obtain the parameters of Curie temperature distribution from thermomagnetic and magnetocaloric data

Manchón Gordón, Alejandro F.; Moreno Ramírez, Luis Miguel; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2019)
We propose a procedure for the determination of the parameters of the Curie temperature distribution (TCD)in a compositionally ...
Final Degree Project
Icon

Estudio de transformaciones en estado sólido a partir de su comportamiento magnético

López Martín, Raúl; Blázquez Gámez, Javier Sebastián (2019)
Article
IconIcon

Magnetocaloric effect: From materials research to refrigeration devices

Franco García, Victorino; Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Law, Jia Yan; Moreno Ramírez, Luis Miguel; Conde Amiano, Alejandro (Elsevier, 2018)
The magnetocaloric effect and its most straightforward application, magnetic refrigeration, are topics of current interest ...
Final Degree Project
Icon

Simulación de la nanocristalización en aleaciones metálicas amorfas

Spa Gómez, Beatriz; Blázquez Gámez, Javier Sebastián (2018)
El objetivo de este trabajo es simular en dos dimensiones, a través de un autómata celular, una transformación ...
Final Degree Project
Icon

Preparación y caracterización de aleaciones de Gd-Fe-Mn

Vidal Crespo, Antonio; Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo (2018)
La producción de materiales en los últimos años ha cobrado gran importancia en el campo de la ciencia. Por ello se han ...
Article
Icon

On the use of JMAK theory to describe mechanical amorphization: a comparison between experiments, numerical solutions and simulations

Blázquez Gámez, Javier Sebastián; Manchón Gordón, Alejandro F.; Ipus Bados, Jhon Jairo; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (MDPI, 2018)
The kinetics of amorphization during ball milling is generally analyzed using two different approaches: the classical ...
Article
Icon

Evolution of Fe environments and phase composition during mechanical amorphization of Fe70Zr30 and Fe70Nb30 alloys

Manchón Gordón, Alejandro F.; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2018)
Amorphous Fe-Zr and Fe-Nb alloys with 70 at.% Fe have been prepared by ball milling a mixture of elemental powders. The ...
Article
Icon

Correction of the Shape Effect on Magnetic Entropy Change in Ball Milled Fe70Zr30 Alloys

Manchón Gordón, Alejandro F.; Ipus Bados, Jhon Jairo; Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2018)
The field dependence of the magnetic entropy change (ΔSM) after mechanical alloying of Fe70Zr30 composition starting from ...
Article
Icon

Grinding and particle size selection as a procedure to enhance the magnetocaloric response of La( Fe, Si)(13) bulk samples

Ipus Bados, Jhon Jairo; Borrego Moro, Josefa María; Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2017)
The magnetocaloric effect of La(Fe,Si)13 samples deteriorates with the presence of secondary phases. However, it is highly ...
Article
Icon

Mechanochemistry of copper sulphides: phase interchanges during milling

Baláž, Matej; Zorkovská, Anna; Blázquez Gámez, Javier Sebastián; Daneu, Nina; Baláž, Peter (Springer Nature, 2017)
Covellite, CuS and chalcocite, Cu2S nanoparticles prepared in the explosive manner from elemental precursors were further ...
Article
Icon

Ball milling as a way to produce magnetic and magnetocaloric materials: a review

Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Moreno Ramírez, Luis Miguel; Álvarez Gómez, J.M.; Sánchez Jiménez, D.; Lozano Pérez, S.; Franco García, Victorino; Conde Amiano, Alejandro (Springer Nature, 2017)
Ball milling (BM) is a well-established technique for producing different materials in powder shape. Dynamical analysis ...
Article
Icon

Study of Phases Evolution in High-coercive MnAl Powders Obtained Through Short Milling Time of Gas-atomized Particles

Law, Jia Yan; Rial, J.; Villanueva, M.; López, N.; Camarero, J.; Marshall, L. G.; Blázquez Gámez, Javier Sebastián; Borrego Moro, Josefa María; Franco García, Victorino; Conde Amiano, Alejandro; Lewis, L. H.; Bollero, A. (Elsevier, 2017)
Gas-atomized Mn54Al46 particles constituted nominally of only ε- and γ2-phases, i.e. no content of the ferromagnetic ...
Article
Icon

A New Method for Determining the Curie Temperature From Magnetocaloric Measurements

Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro; Marsilius, Mie; Budinsky, Viktoria; Herzer, Giselher (Institute of Electrical and Electronics Engineers, 2016)
A new method is proposed for determining the Curie temperature from magnetocaloric measurements. It is based on the field ...
Article
Icon

A unified approach to describe the thermal and magnetic hysteresis in Heusler alloys

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro; Gottschall, Tino; Skokov, Konstantin P.; Gutfleisch, Oliver (American Institute of Physics Publising LLC, 2016)
Different excitations, like temperature, magnetic field, or pressure, can drive a martensitic transition in Heusler alloys. ...
Article
Icon

Anisotropy field distribution in soft magnetic Hitperm alloys submitted to different field annealing processes

Blázquez Gámez, Javier Sebastián; Marcin, Jozef; Andrejka, Frantisek; Franco García, Victorino; Conde Amiano, Alejandro; Skorvanek, Ivan (Elsevier, 2016)
The magnetic anisotropy field distribution is discussed for Hitperm alloys annealed under different field conditions leading ...
Article
Icon

Magnetocaloric response of amorphous and nanocrystalline Cr-containing Vitroperm-type alloys

Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro; Marsilius, M.; Budinsky, V.; Herzer, G. (Elsevier, 2016)
The broad compositional range in which transition metal (TM) based amorphous alloys can be obtained, yields an easily ...
Article
Icon

Optimal temperature range for determining magnetocaloric magnitudes from heat capacity

Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Law, Jia Yan; Franco García, Victorino; Conde Amiano, Alejandro (Institute of Physics Publishing, 2016)
The determination of the magnetocaloric magnitudes (specific magnetic entropy change, Δs M, and adiabatic temperature ...
Article
Icon

Study of the Induced Anisotropy in Field Annealed Hitperm Alloys by Mössbauer Spectroscopy and Kerr Microscopy

Blázquez Gámez, Javier Sebastián; Marcin, Jozef; Andrejka, Frantisek; Franco García, Victorino; Conde Amiano, Alejandro; Skorvanek, Ivan (Springer Nature, 2016)
Samples of Fe39Co39Nb6B15Cu1 alloy were nanocrystallized under zero field annealing (ZF) and transverse field annealing ...
Article
Icon

Nanocrystallization Kinetics Understood as Multiple Microprocesses Following the Classical Theory of Crystallization

Manchón Gordón, Alejandro F.; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2016)
In this work, we propose a model for using the classical Johnson-Mehl-Avrami-Kolmogorov (JMAK) crystallization theory to ...
Article
Icon

Effect of α-Fe impurities on the field dependence of magnetocaloric response in LaFe11.5Si1.5

Blázquez Gámez, Javier Sebastián; Moreno Ramírez, Luis Miguel; Ipus Bados, Jhon Jairo; Kiss, László Ferenc; Kaptás, Dénes; Kemèny, Tamás (Elsevier, 2015)
In this work, the theoretical field dependence of the magnetic entropy change far away from the transition is used to ...
Article
Icon

On the use of classical JMAK crystallization kinetic theory to describe simultaneous processes leading to the formation of different phases in metals

Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (2015)
The classical theory of Johnson-Mehl-Avrami-Kolmogorov (JMAK) is widely used to describe the kinetics of crystallization ...
Article
Icon

Influence of Hot Compaction on Microstructure and Magnetic Properties of Mechanically Alloyed Fe(Co)-based Amorphous Compositions

Ipus Bados, Jhon Jairo; Borrego Moro, Josefa María; Blázquez Gámez, Javier Sebastián; Stoica, M.; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2015)
Amorphous Fe75Nb10B15 and (Fe70Co30)75Nb10B15 alloys were prepared by mechanical alloying from the elemental constituents ...
Article
Icon

Analysis of magnetocaloric effect of ball milled amorphous alloys: Demagnetizing factor and Curie temperature distribution

Moreno Ramírez, Luis Miguel; Ipus Bados, Jhon Jairo; Franco García, Victorino; Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro (Elsevier, 2015)
The magnetocaloric effect (MCE) has been measured for an amorphous mechanically alloyed (MA) Co62Nb6Zr2B30. It is demonstrated ...
Article
Icon

Enhanced cryogenic magnetocaloric effect in Eu8Ga16Ge30 clathrate nanocrystals

Biswas, Anis; Chandra, Sayan Rout; Stefanoski, S.; Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Conde Amiano, Alejandro; Phan, Manh Huong; Franco García, Victorino; Nolas, George S.; Srikanth, Hariharan (AIP Publishing, 2015)
We observe an enhanced magnetic entropy change ( D S M ) at cryogenic temperatures (T < 20 K) in Eu 8 Ga 16 Ge 30 clathrate ...
Article
Icon

Influence of microstructure on the enhancement of soft magnetic character and the induced anisotropy of field annealed HITPERM-type alloys

Blázquez Gámez, Javier Sebastián; Marcin, Jozef; Varga, Melinda; Franco García, Victorino; Conde Amiano, Alejandro; Škorvánek, Ivan (AIP Publishing, 2015)
Hitperm-type rapidly quenched ribbons were submitted to field annealing, both longitudinal field (LF) and transversal field ...
Article
Icon

Milling effects on magnetic properties of melt spun Fe-Nb-B alloy

Conde Amiano, Alejandro; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Stoica, M. (AIP Publishing, 2014)
Fe75Nb10B15 amorphous ribbons were grinded via ball milling to produce powder samples preserving the amorphous ...
Article
Icon

A procedure to extract the magnetocaloric parameters of the single phases from experimental data of a multiphase system.

Ipus Bados, Jhon Jairo; Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro (AIP Publishing, 2014)
In this work, we propose a method to extract the individual parameters that describe the field dependence of magnetic ...
Article
Icon

Amorphization and evolution of magnetic properties during mechanical alloying of Co62Nb6Zr2B30: dependence on starting boron microstructure

Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Conde Amiano, Alejandro (Elsevier, 2014)
Co62Nb6Zr2B30 composition was mechanically alloyed using three different types of boron powders in the starting mixture: ...
Article
Icon

Extracting the composition of nanocrystals of mechanically alloyed systems using Mössbauer spectroscopy

Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2014)
Determining the composition at the nanoscale generally requires the use of experimental techniques such as 3D atom probe ...
Article
Icon

Magnetocaloric effect of Co62Nb6Zr2B30 amorphous alloys obtained by mechanical alloying or rapid quenching

Moreno Ramírez, Luis Miguel; Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Borrego Moro, Josefa María; Franco García, Victorino; Conde Amiano, Alejandro (2014)
Amorphous samples of nominal composition Co62Nb6Zr2B30 have been prepared using mechanical alloying (MA) and rapid quenching ...
Article
Icon

Evolution of Fe environments in mechanically alloyed Fe–Nb–(B) compositions

Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2014)
Nanocrystalline alloys of nominal composition Fe85Nb5B10 were produced by mechanical alloying from a mixture of elemental ...
Article
Icon

Structural Relaxation in Fe(Co)SiAlGaPCB Amorphous Alloys

Borrego Moro, Josefa María; Blázquez Gámez, Javier Sebastián; Lozano Pérez, S.; Kim, J. S.; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2014)
The structural relaxation of multicomponent Fe(Co)SiAlGaPCB amorphous alloys was investigated calorimetrically for annealed ...
Article
Icon

Influence of the demagnetizing factor on the magnetocaloric effect: Critical scaling and numerical simulations

Romero-Muñiz, Carlos; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro (AIP Publishing, 2014)
In recent years, the magnetocaloric effect is studied not only for the search of potential magnetic refrigerant materials ...
Article
Icon

Relationship between mechanical amorphization and boron integration during processing of FeNbB alloys

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Franco García, Victorino; Conde Amiano, Alejandro; Borrego Moro, Josefa María; Conde Amiano, Alejandro (Elsevier, 2014)
Fe75Nb10B15 alloys were prepared by mechanical alloying using different boron powders (crystalline B, commercial amorphous ...
Article
Icon

Crystallization kinetics and soft magnetic properties in metalloid-free (Fe, Co)90Zr10 amorphous and nanocrystalline alloys

Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Conde Amiano, Clara Francisca; Cabrera, David; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2014)
Microstructure and magnetic properties of metalloid-free (Fe100- xCox)90Zr10 amorphous and nanocrystalline alloys were ...
Article
Icon

Metastable Soft Magnetic Materials Produced by Mechanical Alloying: Analysis Using an Equivalent Time Approach

Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Lozano Pérez, S.; Conde Amiano, Alejandro (Springer Nature, 2013)
Mechanical alloying, a ball milling technique where heterogeneous starting powders are homogenized and alloyed, has become ...
Article
Icon

The use of amorphous boron powder enhances mechanical alloying in soft magnetic FeNbB alloy: A magnetic study

Conde Amiano, Alejandro; Franco García, Victorino; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián (AIP Publishing, 2013)
Saturation magnetization and magnetic anisotropy have been studied during mechanical alloying of Fe75Nb10B15 alloys prepared ...
Article
Icon

Role of starting phase of boron on the mechanical alloying of FeNbB composition

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Lozano Pérez, S.; Conde Amiano, Alejandro (Elsevier, 2013)
Mechanical alloyed Fe75Nb10B15 systems, prepared with crystalline or commercial amorphous boron and a similar composition ...
Article
Icon

Analysis of nanocrystallization kinetics and crystal size distribution under limited growth approach

Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2012)
Two different simulation approaches have been used to describe nanocrystallization processes: a limited growth approach, ...
Article
Icon

Extension of the Classical Theory of Crystallization to Non-isothermal Regimes: Application to Nanocrystallization Processes

Blázquez Gámez, Javier Sebastián; Borrego Moro, Josefa María; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Lozano Pérez, S. (Elsevier, 2012)
The non-isothermal kinetics of primary crystallization processes is studied from numerically generated curves and their ...
Article
Icon

Enhancement of the Magnetic Refrigerant Capacity in Partially Amorphous Fe 70Zr 30 Powders Obtained by Mechanical Alloying

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2012)
After mechanical alloying Fe 70Zr 30 composition from pure starting powders, an amorphous phase with Curie temperature T ...
Article
Icon

Comparison of equivalent ball milling processes on Fe70Zr30 and Fe70Nb30

Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2012)
Dynamical analysis of the movement of a single ball in a planetary ball mill yields a cubic law with the frequency of the ...
Article
Icon

Cellular automata simulations on nanocrystallization processes: From instantaneous growth approximation to limited growth

Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Conde Amiano, Alejandro (Elsevier, 2011)
Cellular automata simulations have been performed to simulate the crystallization process under a limited growth approximation. ...
Article
Icon

Two Milling Time Regimes in the Evolution of Magnetic Anisotropy of Mechanically Alloyed Soft Magnetic Powders

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2011)
The milling time evolution of magnetic anisotropy of ball milled powders can be described considering two regimes. First, ...
Article
Icon

Magnetic and Structural Characterization of Mo-Hitperm Alloys with Different Fe/Co Ratio

Conde Amiano, Clara Francisca; Borrego Moro, Josefa María; Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro; Švec, P.; Janičkovič, D. (Elsevier, 2011)
The influence of the Co content on the microstructure and magnetic behaviour of a series of amorphous and nanocrystalline ...
Article
Icon

Structure and magnetic properties of Fe–Nb–B amorphous/nanocrystalline alloys produced by compaction of mechanically alloyed powders

Conde Amiano, Alejandro; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Krasnowski, Marek; Kulik, Tadeusz A.; Lozano Pérez, S. (AIP Publishing, 2010)
Mechanical alloying of Fe75Nb10B15 and Fe85Nb5B10 systems has been performed from an initial mixture of elemental powders. ...
Article
Icon

Nanocrystallization Kinetics Under Instantaneous Growth Approximation: Experiments and Cellular Automata Simulations

Blázquez Gámez, Javier Sebastián; Millán, M.; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Wiley-Blackwell, 2010)
Nanocrystallization kinetics is analyzed in the frame of instantaneous growth approximation, which implies that the time ...
Article
Icon

Thermal stability of a supersaturated Fe-Ge-Nb solid solution produced by ball milling

Conde Amiano, Alejandro; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián (Institute of Physics Publishing (IOP), 2010)
Thermal evolution of Fe neighbourhood in a supersaturated bcc Fe(Ge,Nb) solid solution, obtained as the final product of ...
Article
Icon

Correlation between microstructure and temperature dependence of magnetic properties in Fe 60 Co 18 ( Nb , Zr ) 6 B 15 Cu 1 alloy series

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Ferenc, J.; Kulik, Tadeusz A.; Kiss, László Ferenc (AIP Publishing, 2009)
Temperature dependence of magnetic properties of nanocrystalline Fe60Co18Cu1B15Nb6−xZrx (x =0, 3, 6) alloys has been studied ...
PhD Thesis
IconIcon

Microestructura y comportamiento termomagnético de aleaciones (FeCo) (NbZr) (GeB) obtenidas por molienda

Ipus Bados, Jhon Jairo; Conde Amiano, Alejandro; Blázquez Gámez, Javier Sebastián (2009)
Las propiedades de las aleaciones metálicas dependen de la microestructura y, en particular, de su tamaño de grano. Más ...
Article
Icon

Specific Heat Measurements on Amorphous and Nanocrystalline Al88Y5Ni5Co2

Blázquez Gámez, Javier Sebastián; Millán, M.; Conde Amiano, Clara Francisca; Latuch, J.; Kulik, T.; Conde Amiano, Alejandro (Elsevier, 2009)
Specific heat at constant pressure, CP, was measured on amorphous and nanocrystalline Al88Y5Ni5Co2 alloys from differential ...
Article
Icon

Magnetocaloric response of Fe75Nb10B15Fe75Nb10B15 powders partially amorphized by ball milling

Conde Amiano, Alejandro; Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Kiss, László Ferenc (AIP Publishing, 2009)
The magnetocaloric response of mechanically alloyed Fe75Nb10B15 powders was studied for samples with different amorphous ...
Article
Icon

Supersaturated Solid Solution Obtained by Mechanical Alloying of 75% Fe, 20% Ge and 5% Nb Mixture at Different Milling Intensities

Blázquez Gámez, Javier Sebastián; Ipus Bados, Jhon Jairo; Millán, M.; Franco García, Victorino; Conde Amiano, Alejandro; Oleszak, D.; Kulik, T. (Elsevier, 2009)
Mechanical alloying process of Fe75Ge20Nb5 composition has been studied at different milling frequencies from initial pure ...
Article
Icon

Microstructural Evolution Characterization of Fe-Nb-B Ternary Systems Processed by Ball Milling

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Lozano Pérez, Sergio; Conde Amiano, Alejandro (Taylor & Francis, 2009)
Fe-Nb-B alloys prepared by ball milling can undergo a complex microstructural evolution during milling. In order to overcome ...
Article
Icon

Preferential Co Partitioning to α-Fe in Nanocrystalline CoFeNbB Alloys by Mn Addition

Millán Muñoz, María; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Lozano Pérez, S.; Ochin, P. (Elsevier, 2009)
Influence of Mn addition on the microstructure and hyperfine parameters of amorphous and nanocrystalline Co60(FeMn)18Nb6B16 ...
Article
Icon

Instantaneous growth approximation describing the nanocrystallization process of amorphous alloys: A cellular automata model

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Millán Muñoz, María; Conde Amiano, Alejandro (Elsevier, 2008)
A cellular automata simulation based on an instantaneous growth approximation is developed to model the nanocrystallization ...
Article
Icon

Influence of Mn content on the microstructure and hyperfine interaction parameters of amorphous and nanocrystalline Hitperm-type FeCoMnNbB alloys.

Blázquez Gámez, Javier Sebastián; Benaini, H.; Conde Amiano, Alejandro; Conde Amiano, Clara Francisca; Ochin, Patrick (Russian Academy of Sciences, 2008)
Effects of Mn addition on the devitrification kinetics, microstructure and hyperfine inter- action parameters of FeCoMnNbB ...
Article
Icon

Mechanical alloying of Fe100−x−yNbxBy (x = 5, 10; y = 10, 15): from pure powder mixture to amorphous phase

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2008)
The mechanical alloying process of Fe75Nb10B15 and Fe85Nb5B10 systems has been studied from an initial mixture of elemental ...
Article
Icon

An Equivalent Time Approach for Scaling the Mechanical Alloying Processes

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Millán Muñoz, María; Conde Amiano, Alejandro; Oleszak, D.; Kulik, T. (Elsevier, 2008)
Dynamics of a single ball into a planetary ball mill is analyzed leading to a cubic dependence of the power transferred ...
Article
Icon

Nanocrystallization effects on the specific heat of fe-co-nb-b amorphous alloy

Blázquez Gámez, Javier Sebastián; Millán, Mitchel D.; Conde Amiano, Clara Francisca; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2008)
Specific heat at constant pressure, CP, was measured on amorphous, nanocrystalline and fully crystalline samples of ...
Article
Icon

Kinetic and Microstructural Studies on the Devitrification of Fe60-xCo18MnxNb6B16 Amorphous Alloys

Benaini, H.; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2008)
Kinetic and microstructural studies have been performed on Fe60-xCo18MnxNb6B16 (x = 0, 2, 4) alloys by using different ...
Article
Icon

Analysis of the Mechanically Alloyed Fe85-Nb5-B10 Powder Using a Non-unique Lattice Parameter

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro; Krasnowski, M.; Kulik, T. (Elsevier, 2008)
X-ray diffraction patterns of mechanically alloyed Fe85Nb5B10 powder were fitted using whole powder pattern decomposition ...
Article
Icon

Magnetic permeability of ( Fe Co Ge ) 88 Zr 6 B 5 Cu 1 alloys: Thermal stability in a wide temperature range.

Conde Amiano, Alejandro; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Franco García, Victorino; Kiss, László Ferenc (AIP Publishing, 2008)
Temperature dependence, from room temperature up to 1000 K, of the initial permeability of Fe83−xCoxGe5Zr6B5Cu1 x=5 ...
Article
Icon

Influence of Ge addition on the magnetocaloric effect of a Co-containing Nanopermtype alloy.

Conde Amiano, Alejandro; Franco García, Victorino; Blázquez Gámez, Javier Sebastián (AIP Publishing, 2008)
The influence of the partial substitution of B by Ge on the magnetocaloric response of Fe78Co5Zr6B10Cu1 is studied. Ge ...
Article
Icon

High Temperature Coercivity of Nb-containing HITPERM Alloys: Effect of Cu Addition

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Ferenc, J.; Kulik, T. (Elsevier, 2008)
Hysteresis loops of nanocrystalline samples of Fe39Co39Nb6B16 - yCuy (y = 0, 1) HITPERM-type alloys were measured from ...
Article
Icon

A constant magnetocaloric response in FeMoCuB amorphous alloys with different FeB ratios 

Franco García, Victorino; Conde Amiano, Clara Francisca; Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro; Švec, P.; Janičkovič, D.; Kiss, László Ferenc (AIP Publishing, 2007)
The magnetocaloric effect of Fe91−xMo8Cu1Bx (x = 15 , 17 , 20) amorphous alloys has been studied. The temperature of the ...
Article
Icon

Ball Milling of Fe83Zr6B10Cu1 Amorphous Alloy Containing Quenched in Crystals

Ipus Bados, Jhon Jairo; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2007)
A Fe83B10Zr6Cu1 melt-spun amorphous alloy has been ball milled in the presence of partially crystalline ribbon pieces, in ...
Article
Icon

A Direct Extension of the Avrami Equation to Describe the Non-isothermal Crystallization of Al-base Alloys

Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Kulik, T. (Elsevier, 2007)
A direct extension of the Avrami equation considering the temperature dependence of the frequency factor is applied to ...
Article
Icon

Mean magnetic moment of polydisperse superparamagnetic nanoparticles: Correlation between grain size and magnetic moment distributions

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (American Scientific Publishers, 2007)
The field dependence of magnetization in superparamagnetic systems can be fitted using a set of Langevin contributions ...
Article
Icon

Magnetocaloric effect in Mn-containing Hitperm-type alloys.

Conde Amiano, Alejandro; Franco García, Victorino; Conde Amiano, Clara Francisca; Blázquez Gámez, Javier Sebastián; Millán, Mitchel D. (AIP Publishing, 2007)
The magnetocaloric effect of Fe60−xMnxCo18Nb6B16 x=0,2,4 is studied. Mn addition decreases the Curie temperature of the ...
Article
Icon

Thermal and Microstructural Dependence of the Initial Permeability of Co60Fe18Nb6(B,Cu)16 Alloys

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Kiss, L. F. (Elsevier, 2007)
The thermal and microstructural dependence of the initial permeability of Co60Fe18Nb6B16-yCuy (y = 0, 1) alloys have been ...
Article
Icon

Nanocrystalline Fe-Nb-(B,Ge) alloys from ball milling: microstructure, thermal stability and magnetic properties

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Conde Amiano, Alejandro (Elsevier, 2007)
Fe75B20Nb5, Fe75Ge10B10Nb5 and Fe75Ge20Nb5 alloys were prepared by ball milling from pure powders and their microstructure ...
Article
Icon

On the isothermal kinetics analysis of transformations in metastable systems. A combined use of isothermal and non-isothermal calorimetry

Blázquez Gámez, Javier Sebastián; Millán, Mitchel D.; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Conde Amiano, Alejandro (Taylor & Francis, 2007)
A procedure to optimize the isothermal calorimetric data of very slow transformation processes of metastable systems is ...
Article
Icon

The magnetocaloric effect in soft magnetic amorphous alloys

Franco García, Victorino; Blázquez Gámez, Javier Sebastián; Millán, M; Borrego Moro, Josefa María; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (2007)
The influence of different compositional modifications on the magnetic entropy change and refrigerant capacity of Finemet, ...
Article
Icon

Structural ordering and magnetic properties of arc-melted FeGa alloys

Borrego Moro, Josefa María; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2007)
X-ray diffraction, Mössbauer spectrometry and magnetic properties have been performed on FeGa arc-melted binary alloys in ...
Article
Icon

Microstructure and Mechanical Properties of Bulk Nanocrystalline Al88Mm5Ni5Fe2 Alloy Consolidated at High Pressure

Dimitrov, H.; Blázquez Gámez, Javier Sebastián; Latuch, J.; Kulik, T. (Elsevier, 2007)
Bulk nanocrystalline Al88Mm5Ni5Fe2 alloys have been produced by consolidation of pulverised melt-spun ribbons at high ...
Article
Icon

Thermal and Microstructural Stability of the Soft Magnetic Fe60Co18Nb6B15Cu1 alloy

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Ferenc, J.; Kulik, T. (Elsevier, 2007)
Temperature evolution of the coercivity of nanocrystalline samples of Fe60Co18Nb6B15Cu1 alloy with different crystalline ...
Article
Icon

The influence of Co addition on the magnetocaloric effect of Nanoperm-type amorphous alloys

Conde Amiano, Alejandro; Franco García, Victorino; Blázquez Gámez, Javier Sebastián (AIP Publishing, 2006)
The effect of Co addition on the magnetocaloric effect of amorphous alloys with Nanoperm-type composition has been studied ...
Article
Icon

Ball milling nanocrystallization of arc-melted and melt-spun Fe78Co5Nb3Zr3B5Ge5Cu1 alloy: microstructure and magnetic properties

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro; Roth, Stefan (Taylor & Francis, 2006)
The viability of developing a nanocrystalline microstructure for the Fe78Co5Nb3 Zr3B5Ge5Cu1 composition using a planetary ...
Article
Icon

Effects of high temperature treatments in air and argon on the magnetic properties of HITPERM alloys

Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Roth, Stefan; Güth, Albert (Elsevier, 2006)
The oxidation behavior of FeCo(NbZr)B(Cu) alloy series was studied. After heating up to 1073 K, an oxide layer View the ...
Article
Icon

Mössbauer study of a Fe–Zr–B–Cu–(Ge, Co) nanocrystalline alloy series

Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Conde Amiano, Alejandro (Elsevier, 2006)
Amorphous and nanocrystalline Fe–Zr–B–Cu alloys with partial substitution of Co for Fe and Ge for B have been studied by ...
Article
Icon

A Finemet-type alloy as a low-cost candidate for high-temperature magnetic refrigeration

Franco García, Victorino; Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (AIP Publishing, 2006)
The refrigerant capacity RC of Fe68.5Mo5Si13.5B9Cu1Nb3 alloy is studied. For the amorphous sample, RC=63 J kg−1 for an ...
Article
Icon

Field dependence of the magnetocaloric effect in materials with a second order phase transition: A master curve for the magnetic entropy change

Conde Amiano, Alejandro; Blázquez Gámez, Javier Sebastián; Franco García, Victorino (AIP Publishing, 2006)
The field dependence of the magnetic entropy change can be expressed as SM Hn. For soft magnetic amorphous alloys n=1 ...
Article
Icon

Detection of the onset of nanocrystallization by calorimetric and magnetic measurements

Blázquez Gámez, Javier Sebastián; García Franco, Victorino; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro; Roth, Stefan (AIP Publishing, 2005)
It is generally accepted that measurements of the magnetic properties are more sensitive than measurements of the enthalpy ...
Article
Icon

Non-Isothermal approach to isokinetic crystallization processes: application to the nanocrystallization of HITPERM alloys

Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (Elsevier, 2005)
A new approach is proposed for the study of crystallization processes under the hypothesis of isokinetic behavior. From a ...
Article
Icon

Effect of partial substitution of Ge for B on the high temperature response of soft magnetic nanocrystalline alloys

Blázquez Gámez, Javier Sebastián; Roth, Stefan; Conde Amiano, Alejandro (Elsevier, 2005)
The effect of partial substitution of Ge for B in Fe78Co5Zr6B10Cu1 alloy on the microstructure, crystallization process ...
Article
Icon

Partial substitution of Co and Ge for Fe and B in Fe-Zr-B-Cu alloys: microstructure and soft magnetic applicability at high temperature

Blázquez Gámez, Javier Sebastián; Roth, Stefan; Mickel, Christine H.; Conde Amiano, Alejandro (Elsevier, 2005)
The partial substitutions of Co for Fe and Ge for B are studied for a Fe83-xCoxZr6B10-yGeyCu1 alloy series (x = 0, 5 and ...
Article
Icon

Effect of Substitution of Rare Earth by Mischmetal on the Devitrification Process of Al-X-Ni-Co (X = Y, Ce, Mm) Alloys

Blázquez Gámez, Javier Sebastián; Fazakas, E.; Dimitrov, H.; Latuch, J.; Varga, L.; Kulik, T. (Elsevier, 2005)
The effect of substitution of Ce or Y by mischmetal (Mm) on the glass transition and the kinetics of crystallization of ...
Article
Icon

Hyperfine fields and magnetoelastic surface effects in Fe72Cu1.5Nb4Si13.5B9 nanocrystalline alloy

Szumiata, Tadeusz; Gawroński, Michał; Górka, Bogumił; Brzózka, Katarzyna; Blázquez Gámez, Javier Sebastián; Kulik, Tadeusz A.; Z̊uberek, Ryszard; Ślawska-Waniewska, Anna (Institute of Nuclear Chemistry and Technology, 2003)
In this work hyperfine fields of two-phase nanocrystalline Fe72Cu1.5Nb4Si13.5B9 alloys were studied in order to verify the ...
Article
Icon

Soft magnetic properties of high-temperature nanocrystalline alloys: Permeability and magnetoimpedance.

Conde Amiano, Alejandro; Blázquez Gámez, Javier Sebastián; Franco García, Victorino; Kiss, László Ferenc (AIP Publishing, 2003)
The technological applicability of FeCoNbBCu alloys is suggested in terms of measurements of room temperature ...
PhD Thesis
IconIcon

Cristalización de aleaciones FeCoNbB(Cu) : Microestructura y propiedades magnéticas

Blázquez Gámez, Javier Sebastián; Conde Amiano, Alejandro (2002)
Article
Icon

Mössbauer study of FeCoNbBCu hitperm-type alloys

Conde Amiano, Alejandro; Blázquez Gámez, Javier Sebastián; Grénèche, Jean Marc (AIP Publishing, 2002)
FeCoNbBCu alloys have been studied by Mössbauer spectrometry. A high contribution of the interfacial region in the ...
Article
Icon

Thermomagnetic detection of recrystallization in FeCoNbBCu nanocrystalline alloys

Blázquez Gámez, Javier Sebastián; Conde Amiano, Clara Francisca; Conde Amiano, Alejandro (AIP Publishing, 2001)
The recrystallization process in FeCoNbBCu nanocrystallinealloys is evidenced from thermomagnetic results as a significant ...