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Power flux brought by an electric arc on Ag-SnO2 electrodes
- Source :
- 2017 IEEE Holm Conference on Electrical Contacts.
- Publication Year :
- 2017
- Publisher :
- IEEE, 2017.
-
Abstract
- In this paper a method is described which allows estimating the power flux brought by an electric arc on the electrodes. This information is highly important for the understanding of contact erosion mechanisms, as well as for the practical choice of appropriate materials and sizes in switching devices applications. Our method is applied to the case of Ag-SnO 2 electrodes. Compatibility conditions between experimental values of mass loss in well-defined situations and numerical calculations of melted/vaporized metal lead to a maximum surface power density of 8×109 W/m2 for cathode and 2×109 W/m2 for anode. Moreover it is found that less than 16% of the total power brought to the electrodes contributes to metal phase changes.
- Subjects :
- 010302 applied physics
Materials science
business.industry
Electrical engineering
02 engineering and technology
021001 nanoscience & nanotechnology
7. Clean energy
01 natural sciences
Cathode
Anode
law.invention
Metal
Electric arc
law
visual_art
Surface power density
0103 physical sciences
Electrode
visual_art.visual_art_medium
Optoelectronics
Power flux
0210 nano-technology
business
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2017 IEEE Holm Conference on Electrical Contacts
- Accession number :
- edsair.doi...........eebef57390d16b9943855dce215b3751