Browsing División de Nanociencias y Materiales by Author "Sánchez Valdés, Cesar Fidel"
Now showing items 1-20 of 36
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Aleación de Disprosio-Níquel en forma de cinta y método de síntesis
Sánchez Llamazares, José Luis; Sánchez Valdés, Cesar Fidel (2008-07)"La presente invención describe y reclama una nueva aleación del compuesto intermetálico DyNi2 en forma de cinta. Asimismo, se describe una cinta útil para la refrigeración magnetocalórica a bajas temperaturas formada por ... -
Broad first-order magnetic entropy change curve in directionally solidified polycrystalline Ni-Co-Mn-In
Chen, Feng; Tong, Yunxiang; Li, Li; Sánchez Llamazares, José Luis; Sánchez Valdés, Cesar Fidel; Mullner, Peter (Elsevier B.V., 2017-12)"We present the thermal dependence of the magnetic entropy change ΔSM(T) across the martensitic transformation for a polycrystalline sample, which was cut from a directionally solidified rod, with a nominal composition ... -
Correlation between crystallographic and microstructural features and low hysteresis behavior in Ni50.0Mn35.25In14.75 melt-spun ribbons
Yan, Haile; Sánchez Valdés, Cesar Fidel; Zhang, Yudong; Sánchez Llamazares, José Luis; Li, Zongbin; Yang, Bo; Esling, Claude; Zhao, Xiang; Zuo, Liang (Elsevier, 2018)"In this work, crystallographic, microstructural and magnetocaloric investigations were performed on textured Ni50Mn35.25In14.75 melt-spun ribbons with low thermal (6?K) and magnetic-field induced hysteresis (?0.73?J?kg?1 ... -
Enhanced refrigerant capacity in Gd-Al-Co microwires with a biphase nanocrystalline/amorphous structure
Shen, Hongexian; Xing, Dawei; Sánchez Llamazares, José Luis; Sánchez Valdés, Cesar Fidel; Belliveau, H. F.; Wang, Huan; Qin, Faxiang; Liu, Yanfen; Sun, Jianfei; Srikanth, Hariharan; Phan, Manhhuong (2016-02)"A class of biphase nanocrystalline/amorphous Gd(50+5x)Al(30-5x)Co20 (x = 0, 1, 2) microwires fabricated directly by melt-extraction is reported. High resolution transmission electron microscopy and Fourier function transform ... -
Enhanced refrigerant capacity in two-phase nanocrystalline/amorphous NdPrFe17 melt-spun ribbons
Sánchez Valdés, Cesar Fidel; Ibarra Gaytán, Pablo Jesús; Sánchez Llamazares, José Luis; Ávalos Borja, Miguel; Álvarez Alonso, Pablo; Gorria, Pedro; Blanco Rodríguez, Jesús Angel (2014-05)"he magnetocaloric properties of NdPrFe17 melt-spun ribbons composed of nanocrystallites surrounded by an intergranular amorphous phase have been studied. The nanocomposite shows two successive second-order magnetic phase ... -
Giant and Reversible Inverse Barocaloric Effects near Room Temperature in Ferromagnetic MnCoGeB0.03
Aznar, Araceli; Lloveras, Pol; Kim, Ji-Yeob; Stern Taulats, Enric; Barrio, Maria; Lluis Tamarit, Josep; Sánchez Valdés, Cesar Fidel; Sánchez Llamazares, José Luis; Mathur, Neil; Moya, Xavier (Wiley, 2019)"Hydrostatic pressure represents an inexpensive and practical method of driving caloric effects in brittle magnetocaloric materials, which display first?order magnetostructural phase transitions whose large latent heats ... -
Giant magnetocaloric effect in melt-spun Ni-Mn-Ga ribbons with magneto-multistructural transformation
Li, Zongbin; Zhang, Yudong; Sánchez Valdés, Cesar Fidel; Sánchez Llamazares, José Luis; Esling, Claude; Zhao, Xiang; Zuo, Liang (2014-01)"Magnetic refrigeration based on the magnetocaloric effect (MCE) may provide an energy-efficient and environment-friendly alternative to the conventional gas compression/expansion cooling technology. For potential applications, ... -
High temperature martensitic transformation and giant magnetocaloric effect in Ni40Co10Mn41Sn9 melt-spun ribbons
Chen, Feng; Sánchez Llamazares, José Luis; Sánchez Valdés, Cesar Fidel; Müllner, Peter; Shi, Yangguang; Tong, Yunxiang; Li, Li (Elsevier, 2018)"We report a large magnetic entropy change associated with a high-temperature martensitic transformation in Ni40Co10Mn41Sn9 (at. %) melt-spun ribbons. The ribbons underwent a first-order forward martensitic transition and ... -
High-magnetic field characterization of magnetocaloric effect in FeZrB(Cu) amorphous ribbons
Álvarez Alonso, Pablo; Sánchez Llamazares, José Luis; Sánchez Valdés, Cesar Fidel; Fernández-Gubieda Ruiz, María Luisa; Gorria, Pedro; Blanco Rodríguez, Jesús Angel (2015-05)"The magnetic and magnetocaloric properties of a series of Fe-rich FeZrB(Cu) amorphous ribbons were investigated under magnetic field values up to mu H-0 of 8 T. A correlation between the saturation magnetization and the ... -
In-plane anisotropy in BSCCO superconducting tapes: Transport and magnetometric criteria
García Gordillo, Andy Scott; Sánchez Valdés, Cesar Fidel; Sánchez Llamazares, José Luis; Altshuler, Ernesto (Elsevier, 2020)"Here, the anisotropy between the longitudinal and transverse directions of multi-filamentary Bi2Sr2Ca2Cu3O10+x tapes ("in plane" anisotropy) is studied by transport and magnetization measurements. By minimally manipulating ... -
Investigating the magnetic entropy change in single-phase Y2Fe17 melt-spun ribbons
Sánchez Llamazares, José Luis; Álvarez Alonso, Pablo; Sánchez Valdés, Cesar Fidel; Ibarra Gaytán, Pablo Jesús; Blanco Rodríguez, Jesús Angel; Gorria, Pedro (Elsevier, 2016)"The inspection of simplified fabrication and/or processing routes in order to produce materials with attractive magnetocaloric properties is of paramount importance for the development of environmentally friendly magnetic ... -
Large reversible magnetic entropy change in rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons
Aryal, Anil; Quetz, Abdiel; Sánchez Valdés, Cesar Fidel; Ibarra Gaytán, Pablo Jesús; Pandey, Sudip; Dubenko, Igor; Sánchez Llamazares, José Luis; Stadler, Shane; Ali, Naushad (Elsevier, 2018)"The crystal structure, and magnetic and magnetocaloric properties of rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons is reported. The ribbon samples crystallize into a single-phase hexagonal Ni2In-type structure ... -
Magnetic and martensitic transformations in Ni48Co2Mn35In15 melt-spun ribbons
Pandey, Sudip; Quetz, Abdiel; Ibarra Gaytán, Pablo Jesús; Sánchez Valdés, Cesar Fidel; Aryal, Anil; Dubenko, Igor; Sánchez Llamazares, José Luis; Stadler, Shane; Ali, Naushad (American Institute of Physics, 2018)"As-solidified Ni48Co2Mn35In15 ribbons were prepared through the melt-spinning method, and their structural, magnetic, magnetocaloric properties, and martensitic transformations were investigated. The inverse martensitic ... -
Magnetic entropy change and refrigerant capacity of rapidly solidified TbNi2 alloy ribbons
Sánchez Llamazares, José Luis; Sánchez Valdés, Cesar Fidel; Ibarra Gaytán, Pablo Jesús; Álvarez Alonso, Pablo; Gorria, Pedro; Blanco Rodríguez, Jesús Angel (2013-05)"The magnetocaloric effect in TbNi2 alloy ribbons synthesized by rapid solidification was investigated. This material crystallizes in a superstructure of the cubic Laves phase structure type C15 (space group F-43m). The ... -
Magnetic entropy table-like shape in RNi2 composites for cryogenic refrigeration
Ibarra Gaytán, Pablo Jesús; Sánchez Llamazares, José Luis; Álvarez Alonso, Pablo; Sánchez Valdés, Cesar Fidel; Gorria, Pedro; Blanco Rodríguez, Jesús Angel (2015-05)"We have investigated the magnetocaloric (MC) effect in a two-phase composite based on melt-spun ribbons of the intermetallic DyNi2 and TbNi2 Laves phases. The temperature dependence of the isothermal magnetic entropy ... -
Magnetic, thermal and magnetocaloric properties of Ni50Mn35In14.5B0.5 ribbons
Pandey, Sudip; Quetz, Abdiel; Ibarra Gaytán, Pablo Jesús; Sánchez Valdés, Cesar Fidel; Aryal, Anil; Dubenko, Igor; Mazumdar, Dipanjan; Sánchez Llamazares, José Luis; Stadler, Shane; Ali, Naushad (VBRI Press, 2017)"The structural, thermal, magnetic, and magnetocaloric properties of Ni50Mn35In14.5B0.5 melt-spun ribbons have been investigated using room-temperature x-ray diffraction (XRD), differential scanning calorimetry (DSC), and ... -
Magnetocaloric effect in ErNi2 melt-spun ribbons
Sánchez Llamazares, José Luis; Ibarra Gaytán, Pablo Jesús; Sánchez Valdés, Cesar Fidel; Ríos Jara, David; Álvarez Alonso, Pablo (Elsevier, 2019)"ErNi2 ribbons were produced by rapid solidification using the melt spinning technique. Their structural, magnetic and magnetocaloric properties in the as-solidified state were studied by X-ray diffraction, scanning electron ... -
Magnetocaloric effect in ErNi2 melt-spun ribbons
Sánchez Llamazares, José Luis; Ibarra Gaytán, Pablo Jesús; Sánchez Valdés, Cesar Fidel; Ríos Jara, David; Álvarez Alonso, Pablo (Elsevier, 2020)"ErNi2 ribbons were produced by rapid solidification using the melt spinning technique. Their structural, magnetic and magnetocaloric properties in the as-solidified state were studied by X-ray diffraction, scanning electron ... -
Magnetocaloric properties of rapidly solidified Dy3Co alloy ribbons
Sánchez Llamazares, José Luis; Flores Zúñiga, Horacio; Álvarez Alonso, Pablo; Sánchez Valdés, Cesar Fidel; Lara Rodríguez, Gabriel Ángel; Fernández-Gubieda Ruiz, María Luisa (2015-05)"The magnetic and magnetocaloric (MC) properties of melt-spun ribbons of the Dy3Co intermetallic compound were investigated. Samples were fabricated in an Ar environment using a homemade melt spinner system at a linear ... -
Magnetostructural transitions and magnetocaloric effects in Ni50Mn35In14.25B0.75 ribbons
Pandey, Sudip; Quetz, Abdiel; Ibarra Gaytán, Pablo Jesús; Sánchez Valdés, Cesar Fidel; Aryal, Anil; Dubenko, Igor; Sánchez Llamazares, José Luis; Stadler, Shane; Ali, Naushad (American Institute of Physics, 2018)"The structural, thermal, and magnetic behaviors, as well as the martensitic phase transformation and related magnetocaloric response of Ni50Mn35In14.25B0.75 annealed ribbons have been investigated using room-temperature ...