Transitions of amorphous-crystalline-amorphous in bulk metallic glass under HP and HT  

作　　者：SUN Liling TKikegawa WANG Wenkui 

机构地区：[1]Laboratory of Extreme Condition Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100080,China [2]Photon Factory,Institute for Materials Structure Science,High EnergyAccelerator Organization [3]College of Material Science and Chemical Engineering,Yanshan University,Qinhuangdao 066004,China

出　　处：《Chinese Science Bulletin》2002年第2期100-101,共2页

基　　金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 50171077, 10004014 and 10032040).

摘　　要：In-situ SR-XRD measurements revealed that the crystallization process in Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass is significantly different from that in tradi-tional glasses. Subsequent heating at 10 GPa converts the sample from amorphous phase into the metastable fcc phase and then leads to the fcc phase back to the amorphous phase, indicating that there exists ’reversible’ phase transition phe-nomena in the material under high pressure and high tem-perature.In-situ SR-XRD measurements revealed that the crystallization process in Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass is significantly different from that in traditional glasses. Subsequent heating at 10 GPa converts the sample from amorphous phase into the metastable fcc phase and then leads to the fcc phase back to the amorphous phase, indicating that there exists ‘reversible’ phase transition phenomena in the material under high pressure and high temperature.

关 键 词：上口 

分 类 号：O782[理学—晶体学]