Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound

被引：9

作者：

Alvarez, Pablo ^{[1
]}

Gorria, Pedro ^{[1
]}

Sanchez Llamazares, Jose L. ^{[2
]}

Perez, Maria J. ^{[1
]}

Franco, Victorino ^{[3
]}

Reiffers, Marian ^{[4
]}

Kovac, Jozef ^{[4
]}

Puente-Orench, Ines ^{[5
]}

Blanco, Jesus A. ^{[1
]}

机构：

[1] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain

[2] Inst Potosino Invest Cient & Tecnol, Div Mat Avanzados, San Luis Potosi 78216, Mexico

[3] Univ Seville, CSIC, ICMSE, Dept Fis Mat Condensada, E-41080 Seville, Spain

[4] Inst Expt Phys, SK-04001 Kosice, Slovakia

[5] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 131卷 / 1-2期

关键词：

Intermetallic compounds; Magnetic materials; Crystal structure; Thermomagnetic effects; RARE-EARTH; PHASE-TRANSITIONS; REFRIGERATION; TEMPERATURE; ENHANCEMENT; ALLOYS; PR;

D O I：

10.1016/j.matchemphys.2011.09.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have synthesized the intermetallic YPrFe17 compound by arc-melting. X-ray and neutron powder diffraction show that the crystal structure is rhombohedral with R<(3)over bar $>m space group (Th2Zn17-type). The investigated compound exhibits a broad isothermal magnetic entropy change Delta S-M(T) associated with the ferro-to-paramagnetic phase transition (T-C approximate to 290 K). The vertical bar Delta S-M vertical bar (approximate to 2.3 J kg(-1) K-1) and the relative cooling power (approximate to 100 J kg(-1)) have been calculated for applied magnetic field changes up to 1.5T. A single master curve for Delta S-M under different values of the magnetic field change can be obtained by a rescaling of the temperature axis. The results are compared and discussed in terms of the magneto-caloric effect in the isostructural R2Fe17 (R= Y, Pr and Nd) binary intermetallic alloys. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：18 / 22

页数：5

共 42 条

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[42] Prediction of Intermetallic Compound Formation Sequences in Pseudo Binary Diffusion Couples: Experimental Examinations for (Sn-xZn)/Cu (x=2, 5, 10, 15, 20 and 25 mass%) by a Kinetic Model with Thermodynamic Data Using MDR Diagram
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[J]. MATERIALS TRANSACTIONS, 2014, 55 (11) : 1750 - 1754

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