Comparison of one-dimensional and three-dimensional models for the energy accommodation coefficient

被引:4
|
作者
Özer, A [1 ]
Manson, JR [1 ]
机构
[1] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA
关键词
atom-solid interactions; noble gases; tungsten;
D O I
10.1016/S0039-6028(01)01975-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The accommodation coefficient (AC) for the transfer of energy at a gas-surface interface is treated with a one-dimensional (1D) theoretical model for classical scattering that retains full temperature dependence of both the gas and surface. Calculations are carried out for a purely repulsive gas0surface interaction and for the case in which there is an attractive adsorption well. Comparison with 3D calculations and with data for the accommodation of the rare gases at a tungsten surface indicates that full 3D dynamics are important for calculating the AC. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:352 / 357
页数:6
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