Solidification structures on carbon materials surface-melted by repetitive laser pulses

被引：2

作者：

Abramov, D. V. ^{[1
]}

Arakelyan, S. M. ^{[1
]}

Kutrovskaya, S. V. ^{[1
]}

Kucherik, A. O. ^{[1
]}

Prokoshev, V. G. ^{[1
]}

机构：

[1] Vladimir State Univ, Vladimir 600000, Russia

来源：

QUANTUM ELECTRONICS | 2009年 / 39卷 / 04期

关键词：

carbon melting; Rayleigh-Taylor instability; electron microscopy;

D O I：

10.1070/QE2009v039n04ABEH013798

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The solidification morphology of carbon materials surface-melted by laser radiation at atmospheric pressure is studied. Electron microscopy results indicate that melt solidification is accompanied by the formation of surface microstructures, presumably due to the Rayleigh-Taylor instability in the molten carbon. The instability increment and surface tension coefficient of molten carbon are estimated, and the penetration of carbon vapour into the melt during one laser pulse is examined using numerical simulation.

引用

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页码：333 / 336

页数：4

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