Compression Behaviour and Equation of State of Zr44.4Nb7Cu13.5Ni10.8Be24.3 Bulk Metallic Glass up to 39 GPa
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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.
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LI Gong, ZHAN Zai-Ji, WANG Li-Min, SUN Li-Ling, LIU Jing, WANG Wen-Kui. Compression Behaviour and Equation of State of Zr44.4Nb7Cu13.5Ni10.8Be24.3 Bulk Metallic Glass up to 39 GPa[J]. Chin. Phys. Lett., 2004, 21(5): 898-900.
LI Gong, ZHAN Zai-Ji, WANG Li-Min, SUN Li-Ling, LIU Jing, WANG Wen-Kui. Compression Behaviour and Equation of State of Zr44.4Nb7Cu13.5Ni10.8Be24.3 Bulk Metallic Glass up to 39 GPa[J]. Chin. Phys. Lett., 2004, 21(5): 898-900.
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LI Gong, ZHAN Zai-Ji, WANG Li-Min, SUN Li-Ling, LIU Jing, WANG Wen-Kui. Compression Behaviour and Equation of State of Zr44.4Nb7Cu13.5Ni10.8Be24.3 Bulk Metallic Glass up to 39 GPa[J]. Chin. Phys. Lett., 2004, 21(5): 898-900.
LI Gong, ZHAN Zai-Ji, WANG Li-Min, SUN Li-Ling, LIU Jing, WANG Wen-Kui. Compression Behaviour and Equation of State of Zr44.4Nb7Cu13.5Ni10.8Be24.3 Bulk Metallic Glass up to 39 GPa[J]. Chin. Phys. Lett., 2004, 21(5): 898-900.
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