The research of a specific electrical conductivity of Mo–W powder alloys obtained by SPS

Batienkov R.V., Efimochkin I.Yu., Khudnev A.A.
UDC
621.762
DOI
10.18577/2307-6046-2019-0-7-50-58
Article PDF (Russian) (860.63 KB)
How to cite
Batienkov R.V., Efimochkin I.Yu., Khudnev A.A. The research of a specific electrical conductivity of Mo–W powder alloys obtained by SPS // Proceedings of VIAM. 2019. No. 7. DOI: 10.18577/2307-6046-2019-0-7-50-58. URL: https://test.viam.ru/en/journal/2019/7/6
Keywords
refractory metals, molybdenum and tungsten alloys, specific electrical conductivity, powder metallurgy, spark plasma sintering.
Abstract

The relationship between specific electrical conductivity of Mo–W powder alloys obtained by SPS and tungsten content and process parameters was studied in this work. The specific electrical conductivity’s values for the alloy with 20% (wt) tungsten are in the range between 7,10·10-8 and 9,04·10-8 Ohm·m depending on the sintering temperature while with the increase of tungsten content till 30% (wt) the values of the specific electrical conductivity are increasing too and are within the range of 7,83·10-8 to 10,60·10-8 Ohm·m. A porosity alloys phases content and a grain size were determined as having the most impact on a specific electrical conductivity values. The evaluation of the main factors’ influence on a specific electrical conductivity values was carried out.

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