Chin. Phys. Lett.  2004, Vol. 21 Issue (5): 898-900    DOI:
Original Articles |
Compression Behaviour and Equation of State of Zr44.4Nb7Cu13.5Ni10.8Be24.3 Bulk Metallic Glass up to 39 GPa
LI Gong1,2;ZHAN Zai-Ji2;WANG Li-Min2;SUN Li-Ling2;LIU Jing3;WANG Wen-Kui1,2
1College of Material Sciences and Chemical Engineering, Yanshan University, Qinhuangdao 066004 2Institute of Physics, Chinese Academy of Sciences, Beijing 100080 3BSRF, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
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LI Gong, ZHAN Zai-Ji, WANG Li-Min et al  2004 Chin. Phys. Lett. 21 898-900
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Abstract The compression of Zr44.4Nb7Cu13.5Ni10.8Be24.3 bulk metallic glass (BMG) is investigated at room temperature up to 39 GPa using in situ high-pressure energy dispersive x-ray diffraction with a synchrotron radiation source. The equation of state of the BMG is obtained by the calculation of the radial distribution function. Pressure-induced structural relaxation is exhibited. It is found that below about 6 GPa, the existence of excess free volume contributes to the rapid structural relaxation, which gives rise to rapid volumetric change, and the structural relaxation results in structural stiffness under higher pressure.

Keywords: 61.43.Dq      61.43.-j      62.20.Dc      64.70.-p     
Published: 01 May 2004
PACS:  61.43.Dq (Amorphous semiconductors, metals, and alloys)  
  61.43.-j (Disordered solids)  
  62.20.Dc  
  64.70.-p (Specific phase transitions)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2004/V21/I5/0898
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LI Gong
ZHAN Zai-Ji
WANG Li-Min
SUN Li-Ling
LIU Jing
WANG Wen-Kui
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