LaGa-based bulk metallic glasses  

作　　者：Lin-Zhi Zhao Rong-Jie Xue Wei-Hua Wang Hai-Yang Bai 赵林志;薛荣洁;汪卫华;白海洋(Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China)

机构地区：Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Chinese Physics B》2017年第1期91-96,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51571209 and 51461165101);the National Basic Research Program of China(Grant No.2015CB856800);the Key Research Program of Frontier Sciences,Chinese Academy of Sciences(Grant No.QYZDY-SSW-JSC017)

摘　　要：We report the formation of La Ga-based bulk metallic glasses. Ternary La–Ga–Cu glassy rods of 2–3 mm in diameter can be easily formed in a wide composition range by the conventional copper mold casting method. With minor addition of extra elements such as Co, Ni, Fe, Nb, Y, and Zr, the critical diameter of the full glassy rods of the La–Ga–Cu matrix can be markedly enhanced to at least 5 mm. The characteristics and properties of these new La Ga-based bulk metallic glasses with excellent glass formation ability and low glass transition temperature are model systems for fundamental issues investigation and could have some potential applications in micromachining field.We report the formation of La Ga-based bulk metallic glasses. Ternary La–Ga–Cu glassy rods of 2–3 mm in diameter can be easily formed in a wide composition range by the conventional copper mold casting method. With minor addition of extra elements such as Co, Ni, Fe, Nb, Y, and Zr, the critical diameter of the full glassy rods of the La–Ga–Cu matrix can be markedly enhanced to at least 5 mm. The characteristics and properties of these new La Ga-based bulk metallic glasses with excellent glass formation ability and low glass transition temperature are model systems for fundamental issues investigation and could have some potential applications in micromachining field.

关 键 词：bulk metallic glasses glass forming ability La–Ga–Cu alloys 

分 类 号：TG139.8[一般工业技术—材料科学与工程]