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1篇 您的检索式:作者名="Rithin P.Krishnan"
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1Highly collective atomic transport mechanism in high-entropy glass-forming metallic liquids显示文摘Quasielastic neutron scattering(QENS) has been used to study the atomic relaxation process and microscopic transport mechanism in high-entropy glass-forming metallic(HE-GFM) liquids. Self-intermediate scattering functions obtained from the QENS data show unusually large stretching, which indicates highly heterogeneous atomic dynamics in HE-GFM liquids. In these liquids, a group of atoms over a length scale of about 21 ? diffuses collectively even well above the melting temperature. However, the temperature dependence of diffusion process in one of the HE-GFM liquid is Arrhenius, but in the other HE-GFM liquid it is non-Arrhenius. Although the glass-forming ability of these HE-GFM liquids is very poor, the diffusion coefficients obtained from the QENS data indicate the long range atomic transport process is much slower than that of the best metallic glass-forming liquids at their melting temperatures.Changjiu Chen Kaikin Wong Rithin P.Krishnan Lei Zhifeng Dehong Yu Zhaoping Lu Suresh M.Chathoth 2019Journal of Materials Science & Technology2019,35,1:0
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