Por favor, use este identificador para citar o enlazar este ítem:
http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1162| Magnetic entropy table-like shape in RNi2 composites for cryogenic refrigeration | |
| PABLO JESUS IBARRA GAYTAN JOSE LUIS SANCHEZ LLAMAZARES Pablo Álvarez-Alonso CESAR FIDEL SANCHEZ VALDES Pedro Gorria Jesús Angel Blanco Rodríguez | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| https://doi.org/10.1063/1.4915480 | |
| "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 change, Delta S-M(T), has been calculated for the biphasic system x(DyNi2) + y(TbNi2) with 0< x < 1 (i. e., y - 1 - x). The optimum MC properties, i. e., a Delta S-M(T) curve with table-like shape, has been found in the temperature interval of 18-44K for the composite with x = 0.4 and for values of the magnetic field change mu(o)Delta H - 2 and 5 T, in good agreement with the experimental data. The refrigerant capacity, RC, reaches 221(526) J kg(-1) with a temperature span delta T-FWHM of 32(41) K for mu(o)Delta H of 2(5) T, thus improving the values obtained for the individual RNi2 ribbons. Our findings constitute a good starting point to stimulate the search for new composites with enhanced MC properties at cryogenic temperatures." | |
| American Institute of Physics | |
| 2015-05 | |
| Artículo | |
| Inglés | |
| Público en general | |
| P. J. Ibarra-Gaytán, et al., Journal of Applied Physics 117, 17C116 (2015); https://doi.org/10.1063/1.4915480 | |
| FÍSICA | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Publicaciones Científicas Nanociencias y Materiales |
Cargar archivos:
| Fichero | Tamaño | Formato | |
|---|---|---|---|
| JApplPhys117(2015)17C116.pdf | 975.45 kB | Adobe PDF | Visualizar/Abrir |