Structural Relaxation of Pd_(39)Ni_(10)Cu_(30)P_(21) Bulk Metallic Glass Under High Pressure  

作　　者：WANG Li-Min ZHAN Zai-Ji SUN Li-Ling LI Gong WANG Wen-Kui 王利民;战再吉;孙力玲;李工;王文魁(Center for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100080;College of Material Sciences and Chemical Engineering,Yanshan University,Qinhuangdao 066004)

机构地区：[1]Center for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100080 [2]College of Material Sciences and Chemical Engineering,Yanshan University,Qinhuangdao 066004

出　　处：《Chinese Physics Letters》2001年第4期567-569,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.59889102,10004014;by Chinese National Microgravity Laboratory(Pan-Yu-95-34).

摘　　要：The Pd_(39)Ni_(10)Cu_(30)P_(21) bulk metallic glass is isothermally relaxed under various pressures.The degree of the structural relaxation is evaluated in terms of the enthalpy recovery behaviours involved in the irreversible glass transition processes by using a temperature-modulated differential scanning calarimetry technique.A roughly linear increase of the recovery enthalpy is observed within the experimental pressure range from 2.67 to 4.45 GPa,which reflects the release of the frozen-in enthalpy in the as-quenched glass with increasing relaxation pressure.The pressure dependence of the time scale of the enthalpy recovery processes is also exhibited.

关 键 词：technique. ENTHALPY RELAXATION 

分 类 号：TG1[金属学及工艺—金属学]