Pr基大块纳米晶合金及其特性研究  

Pr-based bulk nanocrystalline alloy and its properties

作　　者：王永田[1] 赵作峰[2] 庞智勇[3] 刘冉[4] 潘明祥[2] 赵德乾[2] 王万录[1] 韩宝善[2] 汪卫华[2] 

机构地区：[1]重庆大学数理学院,重庆400044 [2]中国科学院物理研究所,北京100080 [3]山东大学物理电子系,济南250100 [4]中国科学技术大学物理系,合肥230026

出　　处：《物理学报》2005年第6期2838-2842,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:50321101;10374110)资助的课题.~~

摘　　要：研究了Pr60Al10Ni10Cu20大块金属玻璃的结构和磁性随Fe含量的变化关系,结果表明Pr基合金逐步从玻璃状态,转变为非晶与纳米晶的复合状态,最后成为纳米晶合金,Pr基合金的磁性也相应地发生变化.提出了一种通过对大块稀土基金属玻璃进行Fe掺杂,制备出微观结构和性能具有可调控性的大块纳米晶合金的方法,并讨论了纳米晶结构和性能的关系.The formation of bulk nanocrystalline alloys based on the Pr60Al10Ni10Cu20 bulk metallic glass forming alloy by doping Fe is reported. By varying the content of Fe, the microstructure of the Pr-based alloy changes progressively from full glassy state to composite with nanocrystalline particles embedded in the glassy matrix, and finally into nano-structured state accompanied by the gradual magnetic property changes. A simple approach to obtain the bulk nanocrystalline material with controllable microstructure is presented, and the relation between microstructure and property is discussed.

关 键 词：金属玻璃 掺杂方法 Pr基合金 微观结构 大块纳米晶 

分 类 号：TB383[一般工业技术—材料科学与工程]