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

Published online by Cambridge University Press:  14 December 2015

Sergey Karabanov ,
Dmitry Suvorov ,
Gennady Gololobov ,
Victor Gurov ,
Evgeny Slivkin  and
Dmitry Tarabrin
Sergey Karabanov*
Affiliation:
Ryazan State Radio Engineering University 59/1 Gagarina St., Ryazan 390005, Russia
Dmitry Suvorov
Affiliation:
Ryazan State Radio Engineering University 59/1 Gagarina St., Ryazan 390005, Russia
Gennady Gololobov
Affiliation:
Ryazan State Radio Engineering University 59/1 Gagarina St., Ryazan 390005, Russia
Victor Gurov
Affiliation:
Ryazan State Radio Engineering University 59/1 Gagarina St., Ryazan 390005, Russia
Evgeny Slivkin
Affiliation:
Ryazan State Radio Engineering University 59/1 Gagarina St., Ryazan 390005, Russia
Dmitry Tarabrin
Affiliation:
Ryazan State Radio Engineering University 59/1 Gagarina St., Ryazan 390005, Russia
*
*(Email: [email protected])
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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.

Keywords

thermal stressescoatingsimulation
Type
Articles
Information
MRS Advances , Volume 1 , Issue 17: Mechanical Behaviour and Failure of Materials , 2016 , pp. 1177 - 1182
Copyright
Copyright © Materials Research Society 2015 

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References

REFERENCES

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