Properties of Nanocrystalline Fe75Si15M10 (M-Cr and Al) Powders Prepared by Mechanical Alloying

被引：2

作者：

Kalita, M. P. C. ^{[1
]}

Perumal, A. ^{[1
]}

Srinivasan, A. ^{[1
]}

Pandey, Brajesh ^{[2
]}

Verma, H. C. ^{[2
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, India

[2] Indian Inst Technol Kanpur, Dept Phys, Kanpur 208016, Uttar Pradesh, India

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2008年 / 8卷 / 08期

关键词：

Anisotropy; Mechanical Alloying; Non-Equilibrium;

D O I：

10.1166/jnn.2008.AN52

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the structural and magnetic properties of the nanocrystalline Fe75Si15M10 (M-Al and Cr) powders prepared by mechanical alloying. The milling process produced a non-equilibrium solid solutions of bcc alpha-Fe(Si,Cr) and alpha-Fe(Si,Al). The average dislocation density increases and the average crystallite size decreases with increasing milling time. Magnetic property studies show that the coercivity of the sample increases and magnetization of the sample decreases with increasing milling time. The evolution of a non-equilibrium solid solution and the resulting magnetic properties of nanocrystalline powders are explained on the basis of Neel theory and modified random anisotropy model proposed by Shen et al.

引用

页码：4314 / 4317

页数：4

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