Surface treatment of steel using non-equilibrium plasma at atmospheric pressure

被引：27

作者：

Kiyokawa, K ^{[1
]}

Itou, A ^{[1
]}

Matsuoka, H ^{[1
]}

Tomimatsu, M ^{[1
]}

Sugiyama, K ^{[1
]}

机构：

[1] Saitama Univ, Fac Engn, Dept Appl Chem, Urawa, Saitama 338, Japan

来源：

THIN SOLID FILMS | 1999年 / 345卷 / 01期

关键词：

atmospheric pressure plasma; surface treatment; steel products; optical emission spectroscopy;

D O I：

10.1016/S0040-6090(99)00064-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mixed gas plasma of argon and hydrogen could be generated by irradiation of a microwave to perovskite-type oxide powders at atmospheric pressure. The results of electron and gas temperature measurements showed that this atmospheric pressure plasma is in a nonequilibrium. By using this plasma, we tried to remove surface scales, such as a metal oxide layer, on steel products. Consequently, the scales were removed with little damage in a short period of time, while it is difficult for the ordinary hydrogen reduction process to remove them. The plasma-treatment effect was advanced with increases in the microwave power and treatment time. Optical emission spectroscopy indicated that a large amount of hydrogen radicals existed in the plasma. It is considered that the existence of hydrogen radicals was effective in removing the scales rapidly. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：119 / 123

页数：5

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