%0 Journal Article
%T A new Pr-based bulk metallic glass and its properties<br>新型Pr基大块非晶及其特性研究
%A Zhao Zuo-Feng
%A Zhang Zhi
%A Li Zheng
%A Wen Ping
%A Zhao De-Qian
%A Pan Ming-Xiang
%A Wang Wan-Lu
%A Wang Wei-Hua
%A <br>赵作峰
%A 张志
%A 李　正
%A 闻　平
%A 赵德乾
%A 潘明祥
%A 王万录
%A 汪卫华
%J 物理学报
%D 2004
%I 
%X A new rare-earth Pr-based bulk metallic glass (BMG) is obtained in the shape of rod up to 5 mm in diameter by die cast. Unlike other rare-earth based BMGs, it exhibits a distinct glass transition, Tg=409K,the lowest glass transition temperature among the known BMGs, a large and stable supercooled liquid region and paramagnetic property. The glass transition as well as its kinetic nature and the fragility parameters m of the BMG have been studied. The BMG offers an ideal model to investigate the nature of glass transition as well as the relaxation and nucleation with a large experimentally accessible time and temperature window at very low temperature region.
%K bulk metallic glasses
%K glass transition
%K fragile parameter m<br>大块非晶，
%K 玻璃转变，
%K 脆性参数m
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=0D5E01654F6B3595&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=38B194292C032A66&sid=138D3449C4A7D4E9&eid=970314C3B74F6C4D&journal_id=1000-3290&journal_name=物理学报&referenced_num=8&reference_num=31