Aging and stability of cerium-based bulk metallic glass

Aging and stability of cerium-based bulk metallic glass
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DOI：
10.1063/1.2196231
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发表时间：
2006-04
期刊：
Applied Physics Letters
影响因子：
4
通讯作者：
Q. Luo;Bo Zhang;D. Q. Zhao;Ru-wu Wang;M. Pan;Weihua Wang
Q. Luo;Bo Zhang;D. Q. Zhao;Ru-wu Wang;M. Pan;Weihua Wang
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
Q. Luo;Bo Zhang;D. Q. Zhao;Ru-wu Wang;M. Pan;Weihua Wang

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The aging behavior and the stability of a Ce68Al10Cu20Fe2 bulk metallic glass (BMG) with low glass transition temperature Tg have been investigated upon isothermal annealing near Tg. The annealing time-dependent acoustic velocities, density, elastic constants, and thermodynamic parameters are determined to monitor the structural and properties changes upon aging, and the structural relaxation progress is monitored by the change of enthalpy recovery after annealing. It is found that BMG with Tg near room temperature has high thermal and property stabilities. Stable BMG provides an ideal system to investigate relaxation and supercooled liquid state in alloys.