Anode temperature distribution and coating characteristics in a Hot Refractory Anode Vacuum Arc with an asymmetric anode

2004 ◽  
Vol 188-189 ◽  
pp. 228-233 ◽  
Author(s):  
I.I. Beilis ◽  
A. Shashurin ◽  
A. Nemirovsky ◽  
S. Goldsmith ◽  
R.L. Boxman
Keyword(s):  
Temperature Distribution ◽  
Vacuum Arc ◽  
Coating Characteristics ◽  
Anode Temperature

Measurements of the anode temperature in a vacuum arc with an asymmetric hot refractory Mo anode

2005 ◽  
Vol 33 (5) ◽  
pp. 1641-1647 ◽  
Author(s):  
I.I. Beilis ◽  
A. Shashurin ◽  
A. Nemirovsky ◽  
S. Goldsmith ◽  
R.L. Boxman
Keyword(s):  
Vacuum Arc ◽  
Anode Temperature

Influence of Temperature Distribution on Products Quality in 3KA Rare Earth Electrolytic Cell

2013 ◽  
Vol 800 ◽  
pp. 496-500 ◽  
Author(s):  
Xiao Lian Zhang ◽  
Hong Xia Liu ◽  
Xin Zheng ◽  
Wei Hua Zhe ◽  
Liang Jin ◽  
...  
Keyword(s):  
Rare Earth ◽  
Temperature Distribution ◽  
Cell Voltage ◽  
Electrolytic Cell ◽  
Production Cycle ◽  
Direct Effects ◽  
Temperature Distributions ◽  
Quality Of Products ◽  
Anode Temperature

An investigation was carried out into temperature distribution in 3KA rare earth electrolytic cell and changes of products quality in neodymium electrolysis from a factory in China, The results show that the different temperature distributions have direct effects on the neodymium products quality. In same production cycle, the cell voltage of electrolytic cell is stable and curre rocessing before discharging bascially stays the same; In different cycles, temperature distribution not always alike, mainly reflected in lateral distribution of temperature in electrolytic cell, one form is temperature gradually increased from cathode to anode, and the anode temperature is highest; another is temperature declined then elevated again, anode temperature is slightly higher than the temperature of cathode. The second distribution is benefit for improve the quality of products.

Numerical simulation of low-current vacuum arc jet considering anode evaporation in different axial magnetic fields

2021 ◽  
Author(s):  
Zhefeng Zhang ◽  
Lijun Wang ◽  
Ze Yang ◽  
Ming Luo ◽  
Jiagang Li
Keyword(s):  
Magnetic Field ◽  
Energy Flux ◽  
Axial Magnetic Field ◽  
Plasma Jet ◽  
Vacuum Arc ◽  
Bright Spot ◽  
Anode Surface ◽  
Plasma Cathode ◽  
Mhd Model ◽  
Anode Temperature

Abstract As the main source of the vacuum arc plasma, cathode spots (CSs) play an important role on the behaviors of the vacuum arc. Their characteristics are affected by many factors, especially by the magnetic field. In this paper, the characteristics of the plasma jet from a single CS in vacuum arc under external axial magnetic field (AMF) are studied. A multi-species magneto-hydro-dynamic (MHD) model is established to describe the vacuum arc. The anode temperature is calculated by the anode activity model based on the energy flux obtained from the MHD model. The simulation results indicate that the external AMF has a significant effect on the characteristic of the plasma jet. When the external AMF is high enough, a bright spot appears on the anode surface. This is because with a higher AMF, the contraction of the diffused arc becomes more obvious, leading to a higher energy flux to the anode and thus a higher anode temperature. Then more secondary plasma can be generated near the anode, and the brightness of the ‘anode spot’ increases. During this process, the arc appearance gradually changes from a cone to a dumbbell shape. The appearance of the plasma jet calculated in the model is consistent with the experimental results.

Vacuum arc deposition of Al2O3–ZrO2 coatings: arc behavior and coating characteristics

2010 ◽  
Vol 45 (23) ◽  
pp. 6379-6388 ◽  
Author(s):  
I. Zukerman ◽  
V. N. Zhitomirsky ◽  
G. Beit-Ya’akov ◽  
R. L. Boxman ◽  
A. Raveh ◽  
...  
Keyword(s):  
Vacuum Arc ◽  
Arc Behavior ◽  
Coating Characteristics ◽  
Vacuum Arc Deposition ◽  
Arc Deposition
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