LaGa-based bulk metallic glasses

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 diam...

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Published inChinese physics B Vol. 26; no. 1; pp. 91 - 96
Main Author 赵林志 薛荣洁 汪卫华 白海洋
Format Journal Article
LanguageEnglish
Published 2017
Subjects
临界直径
块状金属玻璃
大块金属玻璃
微机械加工
模型系统
玻璃化转变温度
玻璃形成能力
铸造方法
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ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/26/1/018106

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Summary: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.
Bibliography:Lin-Zhi Zhao,Rong-Jie Xue,Wei-Hua Wang,Hai-Yang Bai（ Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China）
bulk metallic glasses; glass forming ability; La–Ga–Cu alloys
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.
11-5639/O4
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/26/1/018106