Laser Plasmatron for Diamond Coating Deposition

被引：2
|
作者：
Glova, A. F. [1 ,2 ]
Lysikov, A. Yu. [1 ]
Malyuta, D. D. [1 ]
Nelyubin, S. S. [1 ]
Peretyatko, P. I. [1 ]
Ryzhkov, Yu. F. [1 ]
机构：
[1] Troitsk Inst Innovat & Fus Res, JSC State Res Ctr Russian Federat, Ul Pushkovykh 12, Moscow 142190, Russia
[2] Natl Res Nucl Univ MEPhI Moscow Engn Phys Inst, Kashirskoe Sh 31, Moscow 115409, Russia
来源：
PHYSICS OF ATOMIC NUCLEI | 2016年 / 79卷 / 14期
关键词：
laser; plasmatron; optical discharge; threshold power; radiation refraction; FILMS; PROPAGATION; WAVES;
D O I：
10.1134/S106377881614009X
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
An experimental installation with a laser plasmatron based on a continuous wave CO2 laser with a radiation power of up to 3.5 kW has been created. The plasmatron design makes it possible to bring out the plasma jet into atmospheric air both along and across the laser beam direction. The spatial temperature distributions on the metal substrate surface heated by the plasma jet are measured. The threshold power for optical discharge maintenance as a function of the gas flow rate and the focal length of the focusing lens are obtained for an Ar and Ar/ CH4/H-2 gas mixture under atmospheric pressure; the radiation spectrum of the discharge plasma is measured. A one-dimensional model of the discharge for estimation of its geometrical parameters in a convergent laser beam with consideration of radiation refraction on the discharge is given.
引用
收藏
页码：1663 / 1670
页数：8
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