碰撞性
大气压力
等离子体
电子
焦耳加热
原子物理学
大气压等离子体
等离子清洗
亚稳态
容性耦合等离子体
材料科学
化学
物理
气象学
有机化学
复合材料
托卡马克
感应耦合等离子体
量子力学
作者
D.W. Liu,Felipe Iza,Michael G. Kong
摘要
In atmospheric-pressure plasmas the main electron heating mechanism is Ohmic heating, which has distinct spatial and temporal evolutions in the α and γ modes. In γ discharges, ionizing avalanches in the sheaths are initiated not only by secondary electrons but also by metastable pooling reactions. In α discharges, heating takes place at the sheath edges and in contrast with low-pressure plasmas, close to 50% of the power absorbed by the electrons is absorbed at the edge of the retreating sheaths. This heating is due to a field enhancement caused by the large collisionality in atmospheric-pressure discharges.
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