Striations in High-Pressure Hydrogen Microplasma

被引：9

作者：

Pollard, William ^{[1
]}

Suzuki, Patricia ^{[1
]}

Staack, David ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2014年 / 42卷 / 10期

基金：

美国国家科学基金会;

关键词：

Glow discharge; high pressure; hydrogen; microplasma; microscopy; striations; DISCHARGE;

D O I：

10.1109/TPS.2014.2324536

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Standing wave striations at frequencies below 400 kHz are observed in DC H-2 microplasma discharges at pressures up to 7.8 atm. Striations are observable in low-current (1-5 mA) discharges, with a passively stabilized external circuit. Striation spacing ranges from 17 to 34 mu m, with higher pressure and lower current producing smaller spacing. These striations indicate the continued applicability of Knudsen (Kn) number-based scaling laws over several orders of magnitude in pressure.

引用

页码：2650 / 2651

页数：2

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