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Pressure-induced polyamorphic transitions in ytterbium-based bulk metallic glasses
Wang, YY; Zhao, W; Li, G; Li, YC; Liu, RP;李延春
2013
发表期刊MATERIALS LETTERS
卷号110页码:184-187
摘要The structure of Yb60Ca2.5Zn20Mg17.5 bulk metallic glasses was investigated by in situ angle-dispersive X-ray diffraction with a synchrotron radiation source. The glassy nature of the samples was stable up to similar to 30 GPa at room temperature. The volume and bulk modulus as a function of hydrostatic pressure were extracted from the diffraction data. A sudden change was observed in the volume and bulk modulus during compression. Results indicated that pressure induced polyamorphic phase transition in Yb-based bulk metallic glasses compared with Pr- and Gd-based bulk metallic glasses. The critical pressure of the transition was about 10 GPa. The delocalization of 4f electrons under high pressures was responsible for the amorphous-to-amorphous phase transition in Yb-based bulk metallic glasses. (C) 2013 Elsevier B.V. All rights reserved.
关键词High pressure Phase transformation X-ray techniques Elastic properties
学科领域Materials Science; Physics
DOI10.1016/j.matlet.2013.07.091
收录类别SCI
WOS记录号WOS:000325908300050
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223886
专题多学科研究中心
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GB/T 7714
Wang, YY,Zhao, W,Li, G,et al. Pressure-induced polyamorphic transitions in ytterbium-based bulk metallic glasses[J]. MATERIALS LETTERS,2013,110:184-187.
APA Wang, YY,Zhao, W,Li, G,Li, YC,&Liu, RP;李延春.(2013).Pressure-induced polyamorphic transitions in ytterbium-based bulk metallic glasses.MATERIALS LETTERS,110,184-187.
MLA Wang, YY,et al."Pressure-induced polyamorphic transitions in ytterbium-based bulk metallic glasses".MATERIALS LETTERS 110(2013):184-187.
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