Magnetocaloric effect in the Laves phase pseudobinary (Er1-cDyc)Co2

被引:29
作者
de Oliveira, NA [1 ]
von Ranke, PJ [1 ]
机构
[1] Univ Estado Rio de Janeiro, Inst Fis, BR-20550013 Rio De Janeiro, Brazil
关键词
magnetocaloric effect; rare earth compounds; crystal field;
D O I
10.1016/S0304-8853(03)00137-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper, we calculate the adiabatic temperature change and the isothermal magnetic entropy change upon magnetic field variations in the Laves phase pseudobinary (Er1-cDyc)Co-2. We also propose three composite materials, formed by combining samples of the pseudobinary (Er1-cDyc)Co-2, with different Dy concentration, to work as refrigerant in temperature ranges from 33 to 60 K; from 70 to 105 K and from I 10 to 140 K respectively. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:55 / 61
页数:7
相关论文
共 18 条
[11]   TEMPERATURE AND CONCENTRATION-DEPENDENCE OF THE SPECIFIC-HEAT OF (ERXY1-X)CO2 [J].
PILLMAYR, N ;
HILSCHER, G ;
GRATZ, E ;
SECHOVSKY, V .
JOURNAL DE PHYSIQUE, 1988, 49 (C-8) :273-274
[12]  
Smaili A., 1996, ADV CRYOGEN ENG, V42, P445
[13]   Magnetism in RECo2 compounds under high pressure [J].
Syshchenko, O ;
Fujita, T ;
Sechovsky, V ;
Divis, M ;
Fujii, H .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 :1062-1067
[14]   Anomalous behavior of the magnetic entropy in PrNi5 [J].
von Ranke, PJ ;
Pecharsky, VK ;
Gschneidner, KA ;
Korte, BJ .
PHYSICAL REVIEW B, 1998, 58 (21) :14436-14441
[15]   Influence of the crystalline electrical field on the magnetocaloric effect of DyAl2, ErAl2, and DyNi2 [J].
von Ranke, PJ ;
Pecharsky, VK ;
Gschneidner, KA .
PHYSICAL REVIEW B, 1998, 58 (18) :12110-12116
[16]   The influence of crystalline electric field on the magnetocaloric effect in the series RAl2 (R = Pr, Nd, Tb, Dy, Ho, Er, and Tm) [J].
von Ranke, PJ ;
de Oliveira, NA ;
Costa, MVT ;
Nobrega, EP ;
Caldas, A ;
de Oliveira, IG .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 (PART I) :970-972
[17]   Magnetocaloric effect of ErCo2 [J].
Wada, H ;
Tomekawa, S ;
Shiga, M .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 196 :689-690
[18]   Magnetocaloric properties of a first-order magnetic transition system ErCo2 [J].
Wada, H ;
Tomekawa, S ;
Shiga, M .
CRYOGENICS, 1999, 39 (11) :915-919