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Mostrando ítems 1-10 de 20
Artículo
Pb2+, Cd2+ and Hg2+ removal by designed functionalized swelling high-charged micas
(Elsevier, 2021)
The increasing accumulation of toxic heavy metals in the environment has generated the need of efficient removal systems, being the adsorption method the most popular one applied in aqueous solutions. Of particular concern ...
Artículo
Thermal Arrest Analysis of the Reverse Martensitic Transformation in a Ni55Fe19Ga26 Heusler Alloy Obtained by Melt-spinning
(Springer Nature, 2023)
Ni55Fe19Ga26 ribbons obtained by melt-spinning technique exhibit a martensitic transformation from L21 cubic austenite phase to 14 M martensite phase above room temperature. We have taken advantage of the existence of ...
Artículo
Unravelling the optimization of few-layer graphene crystallinity and electrical conductivity in ceramic composites by Raman spectroscopy
(Elsevier, 2021)
Zirconia composites with few-layer graphene (FLG) were prepared by two powder processing routines -ultrasonic agitation or planetary ball milling- and spark plasma sintered at 1250 and 1300 °C. An in-depth study of the ...
Artículo
On the order of magnetic transition in MnCo1−xFexGe (x = 0.20, 0.06 and 0.03) mechanical alloys
(Elsevier, 2023)
Mechanically amorphized MnCo1−xFexGe alloys (x = 0.20, 0.06 and 0.03) were used as precursors to obtain hexagonal austenite single phase samples. Combining thermomagnetic and magnetocaloric analysis and in situ X-ray ...
Artículo
Reactive SPS for sol–gel alumina samples: Structure, sintering behavior, and mechanical properties
(Elsevier, 2021)
This work presents a fast and direct controlled routine for the fabrication of fully dense alumina based on the reactive spark plasma sintering (reactive-SPS) of boehmite (γ-AlOOH) nano-powders obtained by the sol–gel ...
Artículo
Ageing-resistant zirconia/graphene-based nanostructures composites for use as biomaterials
(Elsevier, 2022)
This work explores the incorporation of graphene-based two-dimensional nanostructures as moisture barriers to delay hydrothermal ageing of yttria-stabilized zirconia and strengthen its use in biomedical applications. Two ...
Artículo
Tweenager computer visual syndrome due to tablets and laptops during the postlockdown COVID-19 pandemic and the influence on the binocular and accommodative system.
(MDPI, 2022)
The aim of our study was to compare computer visual syndrome (CVS) in a tweenager student population who use tablets and laptops only to play versus CVS in tweenagers who use these digital devices at school to study, in ...
Artículo
Mechanical Alloying as a Way to Produce Metastable Single-Phase High-Entropy Alloys beyond the Stability Criteria
(MDPI, 2023-12)
Various stability criteria developed for high-entropy alloys are applied to compositions produced by mechanical alloying. While they agree with the annealed samples, these criteria fail to describe the as-milled metastable ...
Artículo
All-d-metal Ni(Co)-Mn(X)-Ti (X = Fe or Cr) Heusler Alloys: Enhanced Magnetocaloric Effect for Moderate Magnetic Fields
(Elsevier, 2023)
All-d-metal Ni(Co)-Mn-Ti Heusler alloys show high magnetocaloric/barocaloric effects ascribed to the occurrence of a martensitic transformation together with excellent mechanical properties. However, high magnetic fields ...
Artículo
Propiedades magnéticas y nanocristalización de una aleación FeSiBCuNb
(Elsevier, 1997)
La desvitrificación de la aleación amorfa Fe75Cu2Nb3SÍ2Q 5 B9 5 tiene lugar en dos etapas. El principal resultado de la primera etapa es la nanocristalización, que da lugar a una nanofase cristalina Fe,Si homogéneamente ...