Influence of heat treatment on high frequency soft magnetic properties of Finemet amorphous alloy
来源期刊:中国有色金属学报(英文版)2007年增刊第1期(Part ⅡB)
论文作者:杨沙 陈伯渠 严彪 陆伟 龙玲 陈智慧
文章页码:1099 - 1102
Key words:amorphous alloy; heat treatment; high frequency soft magnetic properties
Abstract: In order to study high-frequency soft magnetic properties of Finemet amorphous alloy, the microstructural change and nanocrystallization under different heat treatment conditions were investigated by XRD and TEM. The crystallite size of α-Fe was calculated from the XRD pattern using the Scherrer formula, while the high frequency magnetic properties were measured at room temperature by TPS-200SA exchange tester. The results of XRD and TEM indicate that the nanocrystallization occurs at 500 ℃. When the annealing temperature increases to 560 ℃, the amorphous alloy becomes totally nanocrystallized and the crystallites distribute homogeneously, thus an excellent combination of soft magnetic properties is obtained.
基金信息:Shanghai Science and Technology Committee, China