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Atomic-scale heterogeneity of a multicomponent bulk metallic glass with excellent glass forming ability
T. Fujita, K. Konno, W. Zhang, , M. Matsuura, A. Inoue, T. Sakurai, M. Chen W.
Published in
Volume: 103
Issue: 7
We report the atomic structure of a multicomponent Cu45Zr45Ag10 bulk metallic glass investigated by state-of-the-art experimental and computational techniques. In comparison with a binary Cu50Zr50 metallic glass, Zr-rich interpenetrating clusters centered by paired and stringed Ag atoms and Cu-rich icosahedra are widely observed in the ternary Cu45Zr45Ag10 alloy. The atomic-scale heterogeneity caused by chemical short- and medium-range order is found to play a key role in stabilizing the liquid phase and in improving the glass forming ability of the multicomponent alloy. {\textcopyright} 2009 The American Physical Society.
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