Formation of Pd-Ni Based Bulk Metallic Glasses  

作　　者：汪姚岑 陈娜 姚可夫 

机构地区：[1]Key Laboratory for Advanced Materials Processing Technology (Ministry of Education) Department of Mechanical Engineering, Tsinghua University, Beijing 100084

出　　处：《Chinese Physics Letters》2007年第6期1653-1655,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 50671050 and 50431030, and the National Center for Nanoscience and Technology of China.

摘　　要：Bulk metallic glasses are prepared in Pd4o.sNi4o.sSixP19-x （x = 0-14 at.%） alloys by a combination of flux treatment and water quenching technique. It is found that the thermal stability of the Pd4o.sNi4o.sSixP19=x glassy alloys depends on the addition of Si content. Among the Pd4o.sNi4o.sSixP19=x glassy alloys studied, the Pd4o.sNi4o.sSisPls bulk metallic glass exhibits the largest supercooled liquid region （△T = 119 K） and the highest activation energy of crystallization （283.3k J/tool）, showing enhanced glass formation ability and extraordinary glassy thermal stability.Bulk metallic glasses are prepared in Pd4o.sNi4o.sSixP19-x （x = 0-14 at.%） alloys by a combination of flux treatment and water quenching technique. It is found that the thermal stability of the Pd4o.sNi4o.sSixP19=x glassy alloys depends on the addition of Si content. Among the Pd4o.sNi4o.sSixP19=x glassy alloys studied, the Pd4o.sNi4o.sSisPls bulk metallic glass exhibits the largest supercooled liquid region （△T = 119 K） and the highest activation energy of crystallization （283.3k J/tool）, showing enhanced glass formation ability and extraordinary glassy thermal stability.

关 键 词：HIGH-STRENGTH PHASE-SEPARATION ALLOYS PD40.5NI40.5P19 TEMPERATURE STABILITY MPA FE CO 

分 类 号：O57[理学—粒子物理与原子核物理]