Ball-milled barium ferrite-effects of annealing

被引：10

作者：

Campbell, SJ

Kaczmarek, WA

Wang, GM

机构：

[1] AUSTRALIAN NATL UNIV,RSPHYSSE,DEPT APPL MATH,CANBERRA,ACT 0200,AUSTRALIA

[2] UNIV NEW S WALES COLL,AUSTRALIAN DEF FORCE ACAD,DEPT PHYS,CANBERRA,ACT 2600,AUSTRALIA

来源：

NANOSTRUCTURED MATERIALS | 1995年 / 6卷 / 5-8期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1016/0965-9773(95)00151-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Extended milling of BaFe12O19 powder in air results in multiple components with evidence for: structurally disordered BaFe12O19 and alpha-Fe2O3, a disordered/amorphous phase, and superparamagnetic relaxation effects due to the fine particles. The multi-phase nature is found to remain on annealing at 500 degrees C in air or vacuum whereas annealing al 1000 degrees C causes crystalline BaFe12O19 with increased magnetic coercivity to be formed.

引用

页码：687 / 690

页数：4

共 5 条

[1]

CAMPBELL SJ, 1994, IN PRESS HYPER INT

[2]

KACZMAREK WA, 1994, IN PRESS IEEE T MAGN

[3] TRENDS IN MAGNETIC RECORDING MEDIA [J].