摘要
研究了双相纳米晶复合Ｐｒ２Ｆｅ１４Ｂ／α－Ｆｅ永磁合金薄带的剩磁增强效应与α－Ｆｅ体积分数、合金晶粒平均尺寸ｄ、辊速υ以及薄带厚度之间的关系，讨论了起始磁化过程，Ｈｃｉ与Ａｅｘｔ关系以及形核场与交换耦合钉扎场的物理模型和磁硬化机理。
The dependence of remanence enhancement of nanocomposite permanent magnetic alloy ribbons of Pr2Fe14B/α-Fe on volume fraction of α-Fe phase, average grain size (d), wheel speed, and the ribbon thickness has been investigated. Based on the analysis of initial magnetization curves, and the relationship between Hci and Hext, the model of nucleation field of reversed domain and exchange coupling pinning field has been proposed, and the mechanism of magnetic hardening of the composite materials has been discussed.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2000年第4期359-362,共4页
Chinese Journal of Materials Research
基金
国家自然科学基金!59831010
关键词
纳米晶复合永磁材料
交换耦合
永磁合金
nanocomposite magnets, remanence enhancement, magnetic hardening
