The magnetocaloric effect in two-phase Y-Fe nanocrystalline alloys

被引：2

作者：

Karpenkov, Dmitriy Yu. ^{[1
]}

Karpenkov, Alexei Yu. ^{[1
]}

Skokov, Kostantin P. ^{[1
]}

Semenova, Elena M. ^{[1
]}

Smirnov, Roman F. ^{[1
]}

Airiyan, Eduard L. ^{[1
]}

Arefev, Arthur I. ^{[1
]}

Pastushenkov, Yury G. ^{[1
]}

机构：

[1] Tver State Univ, Dept Phys, Tver 170002, Russia

来源：

MAGNETISM AND MAGNETIC MATERIALS V | 2012年 / 190卷

关键词：

Magnetocaloric effect; nanocrystalline materials;

D O I：

10.4028/www.scientific.net/SSP.190.323

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Synthesis of nanocomposite based on binary compound and determination of dependence between the values of magnetocaloric effect (MCE) and the grain size of such specimens are the purposes of this work. The results of the investigation in microcrystalline and nanocrystalline samples Y25Fe75 and Y35Fe65 alloys show, that reduction of the grain size down to 80-100 nanometers on nanocrystalline samples of Y25Fe75 and Y35Fe65 alloys leads to increasing of value of MCE by 20-25% from comparison with values on microcrystalline samples. It can be explained by intergrain exchange interaction in nanocrystalline alloys.

引用

页码：323 / 326

页数：4

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