阴极斑点

磁控电弧离子镀阴极斑点特性的高速摄影研究

High speed photograph study on cathode spot in MAGNETIC-STEERED arc deposition

电极材料组织对真空电弧阴极斑点运动行为的影响

Influence of the microstructure of electrode materials on the motion behaviors of vacuum arc cathode spot

纳米Cu阴极斑点短程有向运动分析

Analysis of the Sub-Directed Walking of Cathode Spots on the Surface of Nanocrystalline Copper

电弧EN极性时，电弧上爬1～1.5倍焊丝直径的高度，焊丝端被电弧阴极斑点包围而且呈现亮区。

Arc creeps up the height of 1-1.5 times diameter of welding rod , and the end of welding rod is surrounded by cathode spot and takes on bright region .

通过比较阴极斑点蚀坑的大小和分布，分析了CuCr触头材料显微组织中Cr相尺寸的大小对阴极斑点运动和蚀坑形貌的影响。

The microstructure analysis showed that the CuCr alloys has an important effect on the discrimination , in which the size of Cr phase plays an main role in effecting the moving direction and distribution of cathode spot craters .

首先，以W-ThO2电极材料为例，建立有限元模型，对阴极斑点的形成过程进行数值模拟，然后验证阴极的尺寸效应。

First , author established model and then simulated the formation process of the cathode spots based on W-ThO_2 electrode material .

数值模拟结果表明，阴极斑点的几何特征和分布完全由ThO2的大小和形貌来决定；

Second , the size effect of the cathode spots was validated , and the results show that the distribution and geometrical properties of cathode spots were completely controlled by the shape and size of ThO_2 particles .

多阴极斑点真空电弧均匀分布时的纵向磁场

Axial Magnetic Field Distribution Keeping Multi-Cathode Spot Vacuum Arc uniform

纵磁场中真空扩散型电弧阴极斑点的分裂和运动

Splitting and Movement of the Diffused Cathode Spot in Axial Magnetic Field in Vacuum

阴极斑点的尺寸效应及其数值模拟

Size Effect and Numerical Simulation of Cathode Spots

真空电弧阴极斑点群集聚的主导作用研究

On the Leading Role by Constriction of Cathode Spots Group of the Vacuum Arc

观察到了阴极斑点孔洞内部结构细节，获得了新的结果。

The details of the structure inside the cathode spot holes were observed and some new important results were obtained .

提出了阴极斑点痕迹在清理区与母材交界处的观点，并进行了解释。

It is suggested that the craters of the cathode spots are in the area adhering to the base metal .

分析表明，当材料特征显微组织尺寸小于阴极斑点尺寸时，阴极斑点运动模式从跳跃式运动转变为连续式运动。

The spot migration mode changes from the jumping motion to a continuous one when the microstructure scale is less than the spot size .

研究了纯石墨和铜-石墨材料的阴极斑点的特性及真空电弧截流现象。

In the paper , the cathode spot movements and chopping current of pure graphite and copper-impregnated metallized graphite ( Cu-C ) in vacuum were investigated .

阴极斑点优先在材料承载电压能力低的弱相表面形成，弱相尺寸、形貌和分布决定了阴极斑点的几何特征。

Arc erosion pattern shows that spot craters locate on the phases with weak voltage withstanding , whose size , morphology and distribution determine the character of the arc spots .

本文探讨了反极性弱等离子弧阴极斑点游动特性。对阴极斑点、电弧电流与电弧电压三者分布之间关系，阴极斑点能量对电弧能量分布的影响进行了研究。

In this paper , the moving characteristics of cathode spots in reverse polarity soft plasma arc , the-distribution of cathode spots , current distribution and voltage distribution , the influence of energy produced cathode spots on distribution of arc energy are studied .

阴极斑点的大小及分布特征对电极材料的电子发射性能及耐烧蚀性能有着至关重要的影响，因此研究阴极斑点的形成过程和影响因素，对于研究和开发新型电极材料具有重要意义。

The size and distribution of the cathode spots play an important role in the anti-erosion capacity and the electron emission ability of electrode materials . Therefore , investigating formation process and factors of the cathode spots is of great significance for the research and development of new electrode materials .

真空阴极弧离子镀阴极斑点的移动研究

Studies of Arc Cathode Spot Motion in Vacuum Arc Deposition