中国物理B ›› 2017, Vol. 26 ›› Issue (1): 18106-018106.doi: 10.1088/1674-1056/26/1/018106

所属专题: SPECIAL TOPIC — Amorphous physics and materials

• SPECIAL TOPIC—Amorphous physics and materials • 上一篇    下一篇

LaGa-based bulk metallic glasses

Lin-Zhi Zhao(赵林志), Rong-Jie Xue(薛荣洁), Wei-Hua Wang(汪卫华), Hai-Yang Bai(白海洋)   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2016-11-14 修回日期:2016-12-19 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Hai-Yang Bai E-mail:hybai@iphy.ac.cn
  • 基金资助:

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

LaGa-based bulk metallic glasses

Lin-Zhi Zhao(赵林志), Rong-Jie Xue(薛荣洁), Wei-Hua Wang(汪卫华), Hai-Yang Bai(白海洋)   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2016-11-14 Revised:2016-12-19 Online:2017-01-05 Published:2017-01-05
  • Contact: Hai-Yang Bai E-mail:hybai@iphy.ac.cn
  • Supported by:

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

摘要:

We report the formation of LaGa-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 LaGa-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

Abstract:

We report the formation of LaGa-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 LaGa-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.

Key words: bulk metallic glasses, glass forming ability, La-Ga-Cu alloys

中图分类号:  (Glasses (including metallic glasses))

  • 81.05.Kf
64.70.pe (Metallic glasses) 62.65.+k (Acoustical properties of solids) 61.43.Dq (Amorphous semiconductors, metals, and alloys)