Fe/RE(Dy,Y)非晶多层膜的晶化方式及晶化温度  

Mode and Temperature of Crystallization of Fe/RE(Dy,Y)Amorphous Multilayer

作　　者：李胜利[1] 王长征[1] 

机构地区：[1]山东工业大学材料学院,山东济南250061

出　　处：《金属热处理》2000年第6期6-7,共2页Heat Treatment of Metals

基　　金：山东省自然科学基金! (Q96F0 4 1 4 5)

摘　　要：通过比较Fe/RE非晶多层膜中所有成分范围内非晶合金形成焓ΔHam与固溶体形成焓ΔHss得出 ,在ΔHam<ΔHss成分范围内的非晶与在ΔHam>ΔHss成分范围内非晶的晶化方式及晶化温度不同。这从理论上系统地解释了多层膜晶化为一个缓慢过程 ,没有确定的晶化温度。By means of comparison of the formation enthalpy of amorphous phase(ΔH am )to formation enthalpy of simple solid solutions(ΔH ss )within the whole composition range of Fe/Y,Fe/Dy multilayer,it has been found that crystallization mode and crystallization temperature are different in different composition range depend on whether(ΔH am )<(ΔH ss ) or (ΔH am )>(ΔH ss ) This result will systematically elucidate in theory that the crystallization of the multilayer made of single composition layers and amorphous alloy domains is a continuous process rather than an abrupt one,i e the crystallization temperature does not have a definite value

关 键 词：多层膜 晶化 形成焓 磁记录材料 晶化温度 

分 类 号：TG139.8[一般工业技术—材料科学与工程] TQ586[金属学及工艺—合金]