Al2O3 coated α-Fe solid solution nanocapsules prepared by arc discharge

被引：42

作者：

Geng, DY

Zhang, ZD

Zhang, WS

Si, PZ

Zhao, XG

Liu, W

Hu, KY

Jin, ZX

Song, XP

机构：

[1] Chinese Acad Sci, Met Res Inst, Magnet Dept, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[2] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China

来源：

SCRIPTA MATERIALIA | 2003年 / 48卷 / 05期

基金：

中国国家自然科学基金;

关键词：

nanocapsules; aluminum; magnetic properties; arc discharge; core/shell structure deposition;

D O I：

10.1016/S1359-6462(02)00466-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Al2O3 coated alpha-Fe solid solution nanocapsules are prepared by arc-discharging a bulk AlNiCo permanent magnet. The size of the nanocapsule is in range of 3-300 nm and the thickness of the shell is 1-6 nm. Al atoms in the AlNiCo magnet form the shell of amorphous Al2O3 to prevent the nanocapsules from further oxidation. The magnetic properties of saturation magnetization J(s) = 85 A m(2)/kg and coercive force H-j(c) = 27.5 kA/m are achieved for the nanocapsules. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：593 / 598

页数：6

共 17 条

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