Stable structure of Zr49Cu44Al7 metallic glass matrix composite with CuZr phase under high pressure up to 40.8 GPa
Stable structure of Zr49Cu44Al7 metallic glass matrix composite with CuZr phase under high pressure up to 40.8 GPa
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DOI：
10.1007/s11434-010-4291-0
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发表时间：
2011-03
影响因子：
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通讯作者：
Gong Li;Riping Liu;Yanchun Li;Jing Liu
中科院分区：
文献类型：
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作者：
Gong Li;Riping Liu;Yanchun Li;Jing Liu
制备了具有CuZr纳米相的三元Zr49Cu44Al7金属玻璃基复合棒，其弹性应变为1.6%，强度为1.78 GPa。使用同步辐射源的角色散 X 射线衍射研究了高压下三元金属玻璃基复合材料的结构评估。研究表明，在室温下高达40.8 GPa的压力下，非晶基体结构是稳定的。没有检测到压力引起的CuZr纳米相消失或生长。根据布里奇曼状态方程，得到体积模量B0=115.2 GPa。
Ternary Zr49Cu44Al7metallic glass matrix composite rods with CuZr nano-phase, exhibiting an elastic strain of 1.6% and a high strength of 1.78 GPa, have been manufactured. The structural evaluation of the ternary metallic glass matrix composite under high pressure has been investigated using angle dispersive X-ray diffraction with a synchrotron radiation source. The investigation shows that the amorphous matrix structure is stable under pressures up to 40.8 GPa at room temperature. No pressure induced CuZr nano-phase disappearing or growing was detected. According to the Bridgeman equation of state, the bulk modulusB0=115.2 GPa has been obtained.