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Artículo
Direct magnetocaloric measurements of Fe-B-Cr-X (X = La, Ce) amorphous ribbons
(American Institute of Physics, 2011)
A procedure has been developed to directly measure the adiabatic temperature change of amorphous melt-spun Fe-based ribbons displaying attractive room temperature magnetocaloric properties. Polycrystalline Gd ribbons are ...
Artículo
Effect of high SWNT content on the room temperature mechanical properties of fully dense 3YTZP/SWNT composites
(Elsevier, 2014)
This paper is devoted to correlate the microstructure and room temperature mechanical properties of single-wall carbon nanotube (SWNT) reinforced 3. mol% yttria stabilized tetragonal zirconia with high SWNT content (2.5, ...
Artículo
Extension of the Classical Theory of Crystallization to Non-isothermal Regimes: Application to Nanocrystallization Processes
(Elsevier, 2012)
The non-isothermal kinetics of primary crystallization processes is studied from numerically generated curves and their predictions have been tested in several nanocrystallization processes. Single processes and transformations ...
Artículo
Enhancement of the Magnetic Refrigerant Capacity in Partially Amorphous Fe 70Zr 30 Powders Obtained by Mechanical Alloying
(Elsevier, 2012)
After mechanical alloying Fe 70Zr 30 composition from pure starting powders, an amorphous phase with Curie temperature T C = 244 K and an intermetallic compound (that should be non-stoichiometric Zr-rich fcc Fe 2Zr phase) ...
Artículo
Cellular automata simulations on nanocrystallization processes: From instantaneous growth approximation to limited growth
(Elsevier, 2011-07)
Cellular automata simulations have been performed to simulate the crystallization process under a limited growth approximation. This approximation resembles several characteristics exhibited by nanocrystalline microstructures ...
Artículo
Hardness and flexural strength of single-walled carbon nanotube/alumina composites
(Kluwer Academic Publishers, 2014)
This work adds new experimental facts on room temperature hardness and flexural strength of alumina and composites with 1, 2, 5 and 10 vol% single-walled carbon nanotubes (SWNT) with similar grain size. Monolithic Al2O3 ...
Artículo
Influence of Hot Compaction on Microstructure and Magnetic Properties of Mechanically Alloyed Fe(Co)-based Amorphous Compositions
(Elsevier, 2015)
Amorphous Fe75Nb10B15 and (Fe70Co30)75Nb10B15 alloys were prepared by mechanical alloying from the elemental constituents and hot compacted at different temperatures within the supercooled liquid region. After compaction, ...
Artículo
Metastable Soft Magnetic Materials Produced by Mechanical Alloying: Analysis Using an Equivalent Time Approach
(Springer Nature, 2013)
Mechanical alloying, a ball milling technique where heterogeneous starting powders are homogenized and alloyed, has become a versatile technique for the production of metastable microstructures: nanocrystalline and/or ...
Artículo
Avalanche criticalities and elastic and calorimetric anomalies of the transition from cubic Cu-Al-Ni to a mixture of 18R and 2H structures
(American Physical Society, 2016)
We studied the two-step martensitic transition of a Cu-Al-Ni shape-memory alloy by calorimetry, acoustic emission (AE), and resonant ultrasound spectroscopy (RUS) measurements. The transition occurs under cooling from the ...
Artículo
Magnetic Multilayers as a Way to Increase the Magnetic Field Responsiveness of Magnetocaloric Materials
(American Scientific Publishers, 2012)
The magnetocaloric response of Ni–Cu based multilayers has been studied with the aim of optimizing their magnetic field dependence. In contrast to the behavior of single phase materials, whose peak magnetic entropy change ...