Preoaration of a Pd-Cu-Si Bulk Metallic Glass with a Diameter up to 11 mm  

作　　者：丁红瑜 李杨 姚可夫 

机构地区：[1]Department of Mechanical Engineering, Tsinghua University, Beijing 100084

出　　处：《Chinese Physics Letters》2010年第12期143-145,共3页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant No 2007CB613905, the National Natural Science Foundation of China under Grant Nos 50671050 and 50971073.

摘　　要：Pd77.5 Cu6Si16.5 （at.%） bulk metallic glass with a diameter up to 11 mm was successfully fabricated by water quenching method together with melt purification. By using x-ray diffraction and transmission electron microscopy techniques, the structure of the as-prepared sample is confirmed to be glassy. The resulted sample with 11 mm diameter indicates that the melt purification by fluxing method can effectively enhance the glass forming ability of Pd-Cu-Si alloy, and increase its critical size of glassy sample.Pd77.5 Cu6Si16.5 （at.%） bulk metallic glass with a diameter up to 11 mm was successfully fabricated by water quenching method together with melt purification. By using x-ray diffraction and transmission electron microscopy techniques, the structure of the as-prepared sample is confirmed to be glassy. The resulted sample with 11 mm diameter indicates that the melt purification by fluxing method can effectively enhance the glass forming ability of Pd-Cu-Si alloy, and increase its critical size of glassy sample.

分 类 号：TQ171.71[化学工程—玻璃工业] TG146.11[化学工程—硅酸盐工业]