在弧度放电过程中,以为基础的阳极的喷
Kenta Iida1, Hisaya Komen2, Masaya Shigeta3
1Joining and Welding Research Institute, Osaka University, Osaka, Japan. k.iida@jwri.osaka-u.ac.jp.
Scientific reports
|July 27, 2023
概括
研究人员在电弧放电过程中确定了一种独特的阳极喷机制. 由电磁力驱动的添加泡形成和破裂,导致高速度的液体金属从阳极喷射出来.
科学领域:
- 材料科学 材料科学 材料科学
- 等离子体物理学的物理学
- 表面科学是一门学科.
背景情况:
- 弧度放电在各种工业应用中至关重要.
- 了解阳极侵蚀机制对于工艺控制和材料寿命至关重要.
- 基于的阳极在高温等离子体应用中很常见.
研究的目的:
- 为了阐明在弧度放电过程中从基于的阳极喷的独特机制.
- 为了确定添加剂和电磁力在阳极喷中的作用.
- 描述导致滴滴喷射的物理过程.
主要方法:
- 使用基于的阳极在弧度放电期间观察喷.
- 高速成像以捕捉发光和表面动态.
- 对阳极表面的温度测量.
- 能量分散光谱 (EDS) 绘制图谱用于元素分析.
主要成果:
- 确定了一种涉及液体金属柱断裂的新型喷机制.
- 来自离子的蓝紫色发光在腔形成之前.
- 在喷过程中,阳极表面温度超过了附加沸点.
- 测量的滴滴速度表明了显著的电磁力贡献.
- 电气污染控制局证实,放电后阳极上有剩余的添加剂.
结论:
- 阳极喷是由添加剂泡形成和破裂在高于沸点的温度开始的.
- 产生一个微等离子喷流,导致液体柱延长和断裂.
- 电磁力驱动高速滴滴喷射,导致阳极侵蚀.
- 这些发现为弧度放电物质运输现象提供了关键的见解.
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