PREPARATION AND MAGNETIC-PROPERTIES OF FE100-XNIX-SIO2 GRANULAR ALLOY SOLID USING A SOL-GEL METHOD

被引：13

作者：

WANG, JP ^{[1
]}

HAN, DH ^{[1
]}

LUO, HL ^{[1
]}

GAO, NF ^{[1
]}

LIU, YY ^{[1
]}

机构：

[1] TSING HUA UNIV,DEPT PHYS,SOLID STATE PHYS LAB,BEIJING 100080,PEOPLES R CHINA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 135卷 / 03期

关键词：

D O I：

10.1016/0304-8853(94)90354-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The preparation of Fe100-xNix-SiO2 (x = 0, 20, 60, 80) granular solid using a sol-gel method is investigated by means of X-ray diffraction and electron transmission micrography. Pure Fe metal, Fe40Ni60 and Fe20Ni80 ultrafine alloy particles dispersed in Fe-SiO2, Fe40Ni60-SiO2 and Fe20Ni80-SiO2 granular solid have been fabricated which are confirmed by the result of the XRD and the Mossbauer spectrums. The evolution of the magnetic properties for the Fe40Ni60-SiO2 and Fe20Ni80-SiO2 granular solid; during reducing are described in detail and explained by using superparamagnetism, single-domain and multidomain theory.

引用

页码：L251 / L256

页数：6

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