摘要
钴基非晶薄带经热磁处理后,磁滞回线呈不对称特性,这种特性可以在室温下获得。我们前期的研究工作着重于该现象的实验观测和简单的唯象解释。本文通过XRD、HRTEM等测试手段研究了热磁处理过程中薄带微结构的变化。研究了不同热处理条件对钴基非晶薄带磁滞回线特征的影响,并分析了发生回线偏移行为样品的微结构特征。认识到热磁处理生成的适宜微晶相是导致非晶薄带磁滞回线发生偏移的主要因素。
The hysteresis loops of longitudinal field annealed Co-based amorphous ribbons have an asymmetrical characteristic.This feature can be obtained at room temperature.Our previous works have revealed the key factor about the phenomenon by the experimental observation and simple phenomenological discussion.Here,this paper mainly discussed the change of microstructure in ribbons during annealing by XRD,HRTEM measurement,and analyzed the crystalline phases characteristic of ribbons with asymmetrical loop.It was found that the sutable crystalline phases produced by annealing,is a key factor for the loop shift behaviour of the Co-based amorphous ribbons.
出处
《磁性材料及器件》
CSCD
北大核心
2011年第3期9-12,共4页
Journal of Magnetic Materials and Devices
基金
国家自然科学基金资助项目(5067102650971044)
关键词
钴基非晶带
热磁退火
非对称磁滞回线
微晶相
微结构
Co-based amorphous ribbon
thermomagnetic treatment
asymmetrical loop
crystalline phase
microstructure
