Silicon carbide ceramics obtained by sintering granular powder

Zhitnyuk S.V., Sorokin O.Ju., Juravleva P.L.
UDC
666.7
DOI
10.18577/2307-6046-2020-0-2-50-59
Article PDF (Russian) (1.13 MB)
How to cite
Zhitnyuk S.V., Sorokin O.Ju., Juravleva P.L. Silicon carbide ceramics obtained by sintering granular powder // Proceedings of VIAM. 2020. No. 2. DOI: 10.18577/2307-6046-2020-0-2-50-59. URL: https://test.viam.ru/en/journal/2020/2/6
Keywords
silicon carbide, microstructure, mechanical properties, uniaxial pressing, pressureless sintering, spark plasma sintering.
Abstract

Silicon carbide-based ceramics with an addition of 1% wt. boron carbide were synthesized by spark plasma sintering at a firing temperature of 2000 °C. The resulting material had a three-point bending strength of 420±20 MPa, a relative density of 98,7% and an open porosity of 0,2%. The comparison of microstructure, phase composition, open porosity and relative density of ceramics obtained by pressureless sintering in the argon atmosphere and spark plasma sintering is carried out.

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