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Type: Artigo de periódico
Title: Experimental and theoretical analyses of PrAl2 and NdAl2 composite for use as an active magnetic regenerator
Author: Carvalho, AMG
Campoy, JCP
Coelho, AA
Plaza, EJR
Gama, S
von Ranke, PJ
Abstract: We report the theoretical and experimental investigations on the magnetocaloric effect in the PrAl2 and NdAl2 compounds and a composite of these compounds for use as an active magnetic regenerator. The theoretical calculations were performed considering the crystalline electrical field anisotropy and the magnetocaloric potentials were calculated in the three main crystallographic directions. The experimental data, obtained for the polycrystalline samples, are in good agreement with the theoretical results. Also, an optimum molar fraction of the PrAl2 and NdAl2 composite was determined theoretically and experimentally and discussed in the framework of the optimum regeneration Ericsson cycle. (C) 2005 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Citation: Journal Of Applied Physics. Amer Inst Physics, v. 97, n. 8, 2005.
Rights: aberto
Identifier DOI: 10.1063/1.1876575
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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