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Volume 14 Issue S1
Jun.  2007
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Yanhui Li, Qing Wang, Jiang Wu, Jianbing Qiang,  and Chuang Dong, Bulk metallic glasses formed by alloying the Cu6Zr5 cluster, J. Univ. Sci. Technol. Beijing, 14(2007), No. S1, pp. 39-42. https://doi.org/10.1016/S1005-8850(07)60105-4
Cite this article as:
Yanhui Li, Qing Wang, Jiang Wu, Jianbing Qiang,  and Chuang Dong, Bulk metallic glasses formed by alloying the Cu6Zr5 cluster, J. Univ. Sci. Technol. Beijing, 14(2007), No. S1, pp. 39-42. https://doi.org/10.1016/S1005-8850(07)60105-4
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Materials

Bulk metallic glasses formed by alloying the Cu6Zr5 cluster

  • 通讯作者:

    Chuang Dong    E-mail: dong@dlut.edu.cn

  • The bulk metallic glass formation in the Cu-Zr-M ternary systems by alloying of a binary basic Cu6Zr5 cluster was investigated, where M stands for Sn, Mo, Ta, Nb, Ag, Al and Ti. The Cu6Zr5 cluster is a capped Archimedean antiprism that characterizes the local structure of the Cu10Zr7 crystalline phase. This cluster composition almost superposes with Cu-Zr eutectic Cu0.56Zr0.44. A series of alloys along the cluster line (Cu6Zr5)1-xMx were examined for their glass forming abilities. Alloy rods with a diameter of 3 mm were prepared by copper mould suction casting method and analyzed by XRD and thermal analysis. The Cu-Zr based bulk metallic glasses were discovered with minor Nb, Sn, Mo, Ta additions (≤2at%) and Al, Ti, Ag (8at%≤concentration≤9at%). The alloying mechanism was discussed in the light of atomic size, cluster-linking structure and electron concentration factors.
  • Materials

    Bulk metallic glasses formed by alloying the Cu6Zr5 cluster

    + Author Affiliations
    • The bulk metallic glass formation in the Cu-Zr-M ternary systems by alloying of a binary basic Cu6Zr5 cluster was investigated, where M stands for Sn, Mo, Ta, Nb, Ag, Al and Ti. The Cu6Zr5 cluster is a capped Archimedean antiprism that characterizes the local structure of the Cu10Zr7 crystalline phase. This cluster composition almost superposes with Cu-Zr eutectic Cu0.56Zr0.44. A series of alloys along the cluster line (Cu6Zr5)1-xMx were examined for their glass forming abilities. Alloy rods with a diameter of 3 mm were prepared by copper mould suction casting method and analyzed by XRD and thermal analysis. The Cu-Zr based bulk metallic glasses were discovered with minor Nb, Sn, Mo, Ta additions (≤2at%) and Al, Ti, Ag (8at%≤concentration≤9at%). The alloying mechanism was discussed in the light of atomic size, cluster-linking structure and electron concentration factors.
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