Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing
Wang, JF; Liu, L; Xiao, JZ; Zhang, T; Wang, BY; Zhou, CL; Long, W; Wang BY(王宝义); Zhou CL(周春兰); Wei L(魏龙)
刊名JOURNAL OF PHYSICS D-APPLIED PHYSICS
2005
卷号38期号:6页码:946-949
学科分类Physics
DOI10.1088/0022-3727/38/6/026
通讯作者Huazhong Univ Sci & Technol, State Key Lab Plast Forming Stimulat & Die & Moul, Wuhan 430074, Peoples R China ; Beihang Univ, Dept Mat Sci & Engn, Beijing 100083, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Anal & Technol, Beijing 100039, Peoples R China
文章类型Article
英文摘要In this paper, positron annihilation spectroscopy and differential scanning calorimetry were applied to study the structural relaxation of Pd40Cu30Ni10P20 bulk metallic glass during long-time annealing at 523 K. It was found that the relaxation of the alloy follows a two-stage process. In the initial stage, with increasing annealing time, the height of the glass transition peak (namely Delta c(p)) increased, while the average positron lifetime decreased. The isothermal relaxation kinetics obeys a Kohlrausch law with exponent of beta = 0.5 +/- 0.03. However, when the annealing time is beyond 32 h, the height of the glass transition peak (Delta c(p)) decreased, and the average positron lifetime increased. This is possibly due to the enhancement of the topological short-range ordering, which results in the generation of new defects on the interfaces between the solid-like regions and the liquid-like regions in amorphous phase. The experimental results were tentatively discussed in terms of free-volume theory and percolation theory.
类目[WOS]Physics, Applied
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000229302700027
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被引频次:10[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/311005/238785
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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Wang, JF,Liu, L,Xiao, JZ,et al. Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2005,38(6):946-949.
APA Wang, JF.,Liu, L.,Xiao, JZ.,Zhang, T.,Wang, BY.,...&魏龙.(2005).Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing.JOURNAL OF PHYSICS D-APPLIED PHYSICS,38(6),946-949.
MLA Wang, JF,et al."Ageing behaviour of Pd40Cu30Ni10P20 bulk metallic glass during long-time isothermal annealing".JOURNAL OF PHYSICS D-APPLIED PHYSICS 38.6(2005):946-949.
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