Comparison between Cooling Rate Dependence of Macroscopic and Microscopic Quantities in Simulated Aluminium Glass
LIU Chang-Song, ZHU Zhen-Gang
Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
Comparison between Cooling Rate Dependence of Macroscopic and Microscopic Quantities in Simulated Aluminium Glass
LIU Chang-Song;ZHU Zhen-Gang
Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
关键词 ：
61.20.Lc ,
61.43.Bn ,
81.05.Kf
Abstract ： Constant-pressure molecular dynamics simulations and an analysis of the local atomic structures have been performed to study the cooling rate dependence of some macroscopic and microscopic quantities in aluminium glass. Macroscopic quantities, enthalpy and density, see an observable but small dependence on the cooling rate. Icosahedral ordering units exhibit strong cooling rate dependence, which is responsible for the dependence of the enthalpy and the density on the cooling rate; while the almost independence of some microstructural units such as the 1541, 1431 and 1421 pairs of the cooling rate may lead to a small dependence of the enthalpy and the density on the cooling rate.
Key words ：
61.20.Lc
61.43.Bn
81.05.Kf
出版日期: 2000-11-01
:
61.20.Lc
(Time-dependent properties; relaxation)
61.43.Bn
(Structural modeling: serial-addition models, computer simulation)
81.05.Kf
(Glasses (including metallic glasses))
引用本文:
LIU Chang-Song;ZHU Zhen-Gang. Comparison between Cooling Rate Dependence of Macroscopic and Microscopic Quantities in Simulated Aluminium Glass[J]. 中国物理快报, 2000, 17(11): 821-823.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2000/V17/I11/821
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2000, Vol. 17 
