非晶合金Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9的激波晶化及其特征  

SHOCK-WAVE NANOCRYSTALLIZATION OF Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9 ALLOY AND ITS CHARACTE RISTICS

作　　者：刘佐权[1] 张远第[1] 吕毓松[1] 

机构地区：[1]云南大学物理系,云南昆明650091

出　　处：《高压物理学报》2000年第4期257-263,共7页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金!(596710 13);南京大学固体微结构国家重点实验室资助课题!(M961117)

摘　　要：研究了非晶合金Fe73 .5Cu1Nb3Si13 .5B9(FINEMET)的激波晶化。与退火晶化比较 ,激波晶化具有一系列鲜明特征 ,这些特征是固态下扩散性相变理论难以解释的 ,有深刻的物理内涵。Shock-wave and annealing cr ystallizations of alloy FINEMET were studied using XRD,DSC and TEM.It was found that amorphous FINEMET samples transformed into nanocrystals with grain size o f 30～50nm under shock loading. Comparing with annealing crystallization,many cha racteristics in the shock wave crystallization can not be explained using diffus ion theory.The shock wave nanocrystallization of amorphous alloy contains plentiful physical connotation.

关 键 词：非晶合金 激波晶化 退火晶化 纳米材料 X射线衍射 差热分析 FINEMET 透射电镜检测 

分 类 号：TG139.8[一般工业技术—材料科学与工程] O751[金属学及工艺—合金]