添加元素对热敏磁性合金Bm-T曲线陡度影响的分类

来源期刊：中南大学学报(自然科学版)1979年第1期

论文作者：谢佑卿 渠振亭 马柳莺 孙绍华

文章页码：76 - 85

关键词：居里温度； 磁性合金； 自发磁化强度； 原子磁矩； 唯象理论； 绝对零度； 面心立方结构； 温度变化； 磁性效应； 玻尔磁子

摘    要：基于外斯的唯象理论,导出了添加元素提高热敏磁性合金Bm-T曲线陡度所应满足的必要条件:(ISB^(O))/(ISA^(O))√(T_CA/T_CB) >1。根据添加元素使合金的居里温度和饱和磁化强度变化的各种效应,可将它们分成六种类型。应用这种分类方法分析了面心立方结构范围内的铁-镍合金。结果指出铁在此范围内显示出四种不同的磁性效应。本研究还指出:锰加入镍-铜系中提高三元合金Bm-T曲线的陡度;并且铜和锰对镍的磁性的影响具有各自原来的效应。

Abstract: On the basis of the phenomenological theroy suggested by Weis, we derivean equation of the form :(ISB^(O))/(ISA^(O))√(T_CA/T_CB) >1. According to the various effects ofadditive elements on changing the Curie-temperatures and the saturation magne tization of alloys, these additive elemnts may be divided into six classes. Thisclassification method is applied to analysing iron-nickel alloys in the fccregion.The results indicate that this iron shows four different magnetic effects. As a result of this work it is realized that the addition of manganese to the nickel-copper system increases the slope of Bm-T curves of the ternary alloys and the copper and manganese have their original effects respectively on influencing the magnetic properties of nickel in the composition region within our study.