- 必威体育下载

姓名
邮箱
手机号码
标题
留言内容
验证码

摘要

在低气压、氮气环境及无外加磁场的情况下发现了一种新型等离子体, 因其具有规则的螺旋传播模式, 被称为螺旋等离子体. 尽管已经对该螺旋等离子体的关键特性进行了大量研究, 螺旋等离子体的形成机理仍未理清, 这影响其在材料、纳米技术上的应用. 通过在不同手性的螺旋等离子体外施加磁场, 研究外加磁场对螺旋等离子体的调控行为, 发现外加磁场将会使得螺旋等离子体发生收缩、拉伸等行为. 并且, 外加磁场还会影响螺旋等离子体的手性和螺旋形态的清晰度. 通过电磁波理论计算螺旋等离子体的径向电场, 理清外加磁场影响螺旋等离子体行为的机理, 发现洛伦兹力的磁场力分量是外加磁场调控螺旋等离子体行为的原因. 本文为理解螺旋等离子体的运动行为打下理论基础, 有利于将来在材料、纳米技术等领域的实际应用.

关键词:

Abstract

Electric phenomena and magnetic phenomena are inseparable. The magnetic field affects the ionization balance and spatial distribution of the plasma. A new type of plasma discharges has been found in nitrogen gas under sub atmospheric pressure condition without external magnetic field. Because of its regular helical propagation pattern, it is called helical plasma (HP) plume. Although a great deal of research has been carried out on the key characteristics of the HP plume, the formation mechanism of it remains unclear, which affects its applications in materials and nanotechnology. By applying magnetic field to HP with different chirality, the regulation behavior of the external magnetic field on HP is studied. It is found that the external magnetic field will make the HP shrink or stretch. With the magnetic field intensity increasing from 0 mT to 200 mT, the left-handed HP plume stretches under the magnetic field of S-pole. Conversely, the left-handed chiral HP plume contracts when the magnetic pole changes to N-pole. However, when the chirality of HP plume is changed to being right-handed by adjusting voltage, phenomenon opposite to the previous one is observed. Moreover, the applied magnetic field also affects the divergence of HP. With the increase of S-pole external magnetic field, the HP plume stretches until the external magnetic field reaches to 80 mT. When the magnetic field intensity is 80 mT, the HP disappears. The plasma in the quartz tube appears in the divergent form. With the magnetic field intensity increasing to 160 mT, the plasma in the form of a helix appears again. Finally, in the process of changing the intensity of the magnetic field, the clarity of the HP plume will also change. The radial electric field of HP is calculated by electromagnetic wave theory, and the mechanism of the influence of external magnetic field on the behavior of HP is clarified. It is found that the magnetic field force component of Lorentz force is responsible for the external magnetic field regulating the HP behavior. This study lays a theoretical foundation for understanding the motion behavior of HP, which is conducive to the practical applications in the field of materials and nanotechnology.

Keywords:

作者及机构信息

1.
2.

通信作者:卢新培,luxinpei@hust.edu.cn

基金项目:国家重点研发计划(批准号: 2021YFE0114700)和国家自然科学基金(批准号: 52130701, 51977096)资助的课题

Authors and contacts

1.
2.

Corresponding author:Lu Xin-Pei,luxinpei@hust.edu.cn

Funds:Project supported by the National Key Research and Development Program of China (Grant No. 2021YFE0114700) and the National Natural Science Foundation of China (Grant Nos. 52130701, 51977096).

文章全文: translate this paragraph

参考文献

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]

施引文献

下载: 全尺寸图片幻灯片

等离子体手性	S极	N极
左手性	拉伸	收缩
右手性	收缩	拉伸

下载: 导出CSV

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]

[1]	张雪雪, 贾鹏英, 冉俊霞, 李金懋, 孙换霞, 李雪辰.辅助放电下刷状空气等离子体羽的放电特性和参数诊断. 必威体育下载 , 2024, 73(8): 085201.doi:10.7498/aps.73.20231946
[2]	刘坤, 项红甫, 周雄峰, 夏昊天, 李华.固定功率下大气压交流氩气等离子体射流的光谱特性. 必威体育下载 , 2023, 72(11): 115201.doi:10.7498/aps.72.20230307
[3]	税敏, 席涛, 闫永宏, 于明海, 储根柏, 朱斌, 何卫华, 赵永强, 王少义, 范伟, 卢峰, 杨雷, 辛建婷, 周维民.激光等离子体射流驱动亚毫米直径铝飞片及姿态诊断. 必威体育下载 , 2022, 71(9): 095201.doi:10.7498/aps.71.20212136
[4]	孔得霖, 杨冰彦, 何锋, 韩若愚, 缪劲松, 宋廷鲁, 欧阳吉庭.大气压电晕等离子体射流制备氧化钛薄膜. 必威体育下载 , 2021, 70(9): 095205.doi:10.7498/aps.70.20202181
[5]	钟旺燊, 陈野力, 钱沐杨, 刘三秋, 张家良, 王德真.大气压非平衡等离子体甲烷干法重整零维数值模拟. 必威体育下载 , 2021, 70(7): 075206.doi:10.7498/aps.70.20201700
[6]	王振兴, 曹志远, 李瑞, 陈峰, 孙丽琼, 耿英三, 王建华.纵磁作用下真空电弧单阴极斑点等离子体射流三维混合模拟. 必威体育下载 , 2021, 70(5): 055201.doi:10.7498/aps.70.20201701
[7]	杨丽君, 宋彩虹, 赵娜, 周帅, 武珈存, 贾鹏英.大气压氩气刷形等离子体羽的特性研究. 必威体育下载 , 2021, 70(15): 155201.doi:10.7498/aps.70.20202091
[8]	张亚容, 韩乾翰, 郭颖, 张菁, 石建军.大气压脉冲放电等离子体射流特性及机理研究. 必威体育下载 , 2021, 70(9): 095202.doi:10.7498/aps.70.20202246
[9]	韩小英, 李凌霄, 戴振生, 郑无敌, 古培俊, 吴泽清.一个快速模拟热稠密非平衡等离子体的碰撞辐射模型. 必威体育下载 , 2021, 70(11): 115202.doi:10.7498/aps.70.20201946
[10]	涂婧怡, 陈赦, 汪沨.光电离速率影响大气压空气正流注分支的机理研究. 必威体育下载 , 2019, 68(9): 095202.doi:10.7498/aps.68.20190060
[11]	郭恒, 苏运波, 李和平, 曾实, 聂秋月, 李占贤, 李志辉.亚大气压六相交流电弧等离子体射流特性研究:实验测量. 必威体育下载 , 2018, 67(4): 045201.doi:10.7498/aps.67.20172556
[12]	刘富成, 晏雯, 王德真.针板型大气压氦气冷等离子体射流的二维模拟. 必威体育下载 , 2013, 62(17): 175204.doi:10.7498/aps.62.175204
[13]	黄骏, 陈维, 李辉, 王鹏业, 杨思泽.大气压冷等离子体射流灭活子宫颈癌Hela细胞. 必威体育下载 , 2013, 62(6): 065201.doi:10.7498/aps.62.065201
[14]	郭卿超, 张家良, 刘莉莹, 王德真.大气压Ar射频容性放电模式转变的温度表征. 必威体育下载 , 2011, 60(2): 025207.doi:10.7498/aps.60.025207
[15]	倪明江, 余量, 李晓东, 屠昕, 汪宇, 严建华.大气压直流滑动弧等离子体工作特性研究. 必威体育下载 , 2011, 60(1): 015101.doi:10.7498/aps.60.015101
[16]	江南, 曹则贤.一种大气压放电氦等离子体射流的实验研究. 必威体育下载 , 2010, 59(5): 3324-3330.doi:10.7498/aps.59.3324
[17]	黄文同, 李寿哲, 王德真, 马腾才.大气压下绝缘毛细管内等离子体放电及其特性研究. 必威体育下载 , 2010, 59(6): 4110-4116.doi:10.7498/aps.59.4110
[18]	张先徽, 黄骏, 刘筱娣, 彭磊, 孙岳, 陈维, 冯克成, 杨思泽.大气条件等离子体针处理Enterococcus faecalis菌. 必威体育下载 , 2009, 58(3): 1595-1602.doi:10.7498/aps.58.1595
[19]	严建华, 屠昕, 马增益, 潘新潮, 岑可法, Cheron Bruno.大气压直流氩等离子体射流工作特性研究. 必威体育下载 , 2006, 55(7): 3451-3457.doi:10.7498/aps.55.3451
[20]	匡光力, G.WAIDMANN.TEXTOR托卡马克等离子体的磁流体动力学振荡特性. 必威体育下载 , 1994, 43(9): 1466-1475.doi:10.7498/aps.43.1466

计量

文章访问数:2208
PDF下载量:69
被引次数:0

搜索

留言板