ON THE GAS KINETICS OF LASER-INDUCED EVAPORATION OF METALS

被引:31
作者
FINKE, BR [1 ]
SIMON, G [1 ]
机构
[1] UNIV ESSEX,COLCHESTER CO4 3SQ,ESSEX,ENGLAND
关键词
D O I
10.1088/0022-3727/23/1/011
中图分类号
O59 [应用物理学];
学科分类号
摘要
Irradiation of a metal surface by a high intensity laser beam produces an evaporation jet of metal vapour. The properties of a steady evaporation jet are discussed essentially for the one-dimensional case with an extension to small flow divergences. There are three regimes, e.g. a Knudsen layer adjacent to the metal surface, a condensation regime and a hydrodynamic regime. Estimates of temperature, density, average velocity, degree of condensation and decrease of pressure along the jet are given. © 1990 IOP Publication Ltd.
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页码:67 / 74
页数:8
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