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Erosion-Resistant Electrode Coatings of Vacuum and Gas-Discharge Switching Devices

  • Sergey Karabanov (a1), Dmitry Suvorov (a1), Gennady Gololobov (a1), Victor Gurov (a1), Evgeny Slivkin (a1) and Dmitry Tarabrin (a1)...

Abstract

The paper presents the results of numerical modeling of thermomechanical stresses and thermal fields for conditions of erosion-resistant electrode coatings of vacuum and gas discharge switching devices with W-Ti-Cu and W-Mo-Cu structures at local temperature and electric current influence in axially symmetrical approximation. The efficiency assessment of intermediate layers introduction by comparison of interlaminar mechanical stresses is carried out. It is shown that introduction of titanium interlayer in the coating with W Cu structure results in considerable (more than two times) decrease of internal thermomechanical stresses between layers that increases coating resistance to delamination. The optimum value of interlayer thickness at which the minimum thermomechanical stresses are provided is determined.

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1.Karabanov, S.M., Karabanov, A.S., Suvorov, D.V., Grappe, B., Coutier, C., Sibuet, H., Sazhin, B.N., Magnetically controlled MEMS switches with nanoscale contact coatings, B.N. (2012) IET Conference Publications 2012 (605 CP) PP. 359 – 361. doi: 1049/cp.2012.0675. Minot E. D., Yaish Y., Sazonova V., and McEuen P. L. Nature 428. 2004. 536–539
2.Coutier, C., Chiesi, L.; Garnier, A., Fourrier, J.C., A new magnetically actuated switch for precise position detection, Solid-State Sensors, Actuators and Microsystems Conference, 2009, Grenoble, France, TRANSDUCERS 2009, International, pp.861 – 864
3.Karabanov, S.M., Maizels, R.M., Shoffa, V.N., Magnetically operated switches (reed switches) and products on their basis, Dolgoprudniy, Publishing House “Intellect”, 2011, 408 pages.
4.Karabanov, S.M., Suvorov, D.V., Sazhin, B.N., Krutilin, A.A., Karabanov, A.S., Grappe, B., Courier, C., Sibuet, H., Nanoscale ruthenium coatings of MEMS switches contacts, Materials Research Society Symposium Proceedings 2010, MRS Spring Meeting, San Francisco, CA, 2010, pp. 277–280.
5.Karabanov, S.М.; Maizels, R.М., Shoffa, V.N., Magnetically operated contacts (reed switches) and units on their basis, Publishing house “Intellect”: Dolgoprudny, Russia, 2011.
6.Palatnik, L.S., Landau, A.I., Phase neutralities in multicomponent systems, Publishing House of Kharkov University, 1961.

Keywords

Erosion-Resistant Electrode Coatings of Vacuum and Gas-Discharge Switching Devices

  • Sergey Karabanov (a1), Dmitry Suvorov (a1), Gennady Gololobov (a1), Victor Gurov (a1), Evgeny Slivkin (a1) and Dmitry Tarabrin (a1)...

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