Synthesis and characterization of nanoparticles of Alnico alloys

被引：26

作者：

Li, XG ^{[1
]}

Chiba, A

Sato, M

Takahashi, S

机构：

[1] Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

[2] Iwate Univ, Fac Engn, Morioka, Iwate 0208551, Japan

来源：

ACTA MATERIALIA | 2003年 / 51卷 / 18期

基金：

中国国家自然科学基金;

关键词：

nanoparticles; Alnico alloy; plasma; morphology; oxidation; magnetic properties;

D O I：

10.1016/S1359-6454(03)00423-3

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Nanoparticles of Alnico 4 (Fe-12% Al-28% Ni-5% Co) and Alnico 5 (Fe-8% Al-14% Ni-24% Co-3%-Cu) alloys with the mean particle diameter from 12 to 34 nm were successfully produced by hydrogen plasma metal reaction. The particle features, oxidization behavior and magnetic properties were studied. The nanoparticles have the same crystalline structure and lattice parameter as the master alloys, and a new phase or non-equilibrium phase has not been observed. With an increase in the mean particle, the oxidization temperature and the saturation magnetization are decreased, but the coercive force is enhanced. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：5593 / 5600

页数：8

共 25 条

[1]

Effect of Mo addition on magnetic properties of Fe-28Cr-15Co hard magnets [J].