Investigation of the Structure and Physicomechanical Characteristics of Reaction-Sintered Materials B4C–SiC

A composite material based on the B 4 C–SiC system with different initial carbon contents was obtained by reaction sintering (impregnation of a porous billet with liquid silicon). Carbon reacted with silicon to form a secondary silicon carbide that filled the space in the porous workpiece until a mo...

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Bibliographic Details
Published inRefractories and industrial ceramics Vol. 64; no. 1; pp. 67 - 70
Main Authors Belyakov, A. N., Markov, M. A., Perevislov, S. N., Dyuskina, D. A., Chekuryaev, A. G., Bykova, A. D., Kashtanov, A. D.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.05.2023
Springer Nature B.V
Subjects
Activated sintering
Bend strength
Boron carbide
Carbon
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composite materials
Composites
Glass
Materials Science
Microhardness
Monolithic materials
Natural Materials
Silicon carbide
Sintering (powder metallurgy)
Workpieces
reaction sintering
silicon carbide
structural materials
boron carbide
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Summary:A composite material based on the B 4 C–SiC system with different initial carbon contents was obtained by reaction sintering (impregnation of a porous billet with liquid silicon). Carbon reacted with silicon to form a secondary silicon carbide that filled the space in the porous workpiece until a monolithic material was obtained. Boron carbide acted as the source of carbon if it was initially absent or its content was low. The obtained materials had the following characteristics: bending strength up to 320 MPa, density up to 2.85 g/cm 3 , microhardness up to 30 GPa.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-023-00806-0