%0 Journal Article
%T A STUDY ON PHASE RELATIONS OF RAPIDLY QUENCHED ALLOYS IN Ag-Ge SYSTEMS<br>急冷Ag-Ge二元系合金的相关系
%A CHE GUANG-CAN
%A LIANG JING-KUI
%A JIN ZUO-WEN
%A ZHAO ZHONG-XIAN
%A <br>车广灿
%A 梁敬魁
%A 金作文
%A 赵忠贤
%J 物理学报
%D 1985
%I 
%X The phase relations and thermodynamic stabillity of metastable phases in rapidly quenched Ag-Ge alloys have been studied by means of DTA, DSC and X-ray powder diffraction techniques. Solubillity of Ge in Ag is extended from 1.5 at% Ge to 8 at% Ge, when cooling speed of alloy is approximately 104 K/s. Except supersaturated solid solution of Ge in Ag and Ge, there also exists a metastable phase, which has the hexagonal close-packed structure (hep) with lattice parameters a=2.893±0.010 ?, c=4.720±0.010 ?, c/a=1.632. For 20 at% Ge alloy, the activation energy of hep phase transition and supersaturated solution desolvation are 93 kJ/mol and 102 kJ/mol respectively. The nature and transition mechanism of the metastable phases are discussed.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=CDC8F3BCB3AB3D03677CDB7677401ED5&yid=74E41645C164CD61&vid=339D79302DF62549&iid=E158A972A605785F&sid=DA4893B5F9885621&eid=07C6E4664BB7C5DA&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0