ON THE DECREASE OF CURIE-TEMPERATURE IN SUBMICRON-GRAINED NICKEL

被引：27

作者：

VALIEV, RZ

VISHNYAKOV, YD

MULYUKOV, RR

FAINSHTEIN, GS

机构：

[1] Institute of Metals Superplasticity Problems, Academy of Sciences of the Ussr

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1990年 / 117卷 / 02期

关键词：

D O I：

10.1002/pssa.2211170226

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model of the two‐phase structure of a metal is proposed to explain the experimentally deduced decrease of the Curie temperature and saturation magnetization in submicron‐grained nickel. One of the phases is the grain body phase which has a Curie temperature traditional for the given crystalline material. The other is the grain boundary phase the Curie temperature of which is much lower. When the specimen temperture rises, the grain body phase is transformed into the grain boundary phase, i.e. due to this transformation the submicron‐grained Ni specimen goes over into the nonferromagnetic state at a temperature lower than the Curie temperature of crystalline Ni. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：549 / 553

页数：5

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