Physical and Mechanical Properties of Composite Ceramics in the ZrB2–SiC–MoSi2 System

— The sintering ability and mechanical characteristics of the materials obtained by sintering in the ZrB 2 –SiC–MoSi 2 system are investigated. The density, linear coefficient of thermal expansion 4.9–6.1 × 10 –6 K –1 , ultimate strength in the bending of ceramic specimens (σ max = 460 MPa), and ela...

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Bibliographic Details
Published in:Glass physics and chemistry 2021-11, Vol.47 (6), p.646-652
Main Authors: Motailo, E. S., Lisyanskii, L. A., Vikhman, S. V., Nesmelov, D. D.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Materials Science
Natural Materials
Physical Chemistry
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Summary:— The sintering ability and mechanical characteristics of the materials obtained by sintering in the ZrB 2 –SiC–MoSi 2 system are investigated. The density, linear coefficient of thermal expansion 4.9–6.1 × 10 –6 K –1 , ultimate strength in the bending of ceramic specimens (σ max = 460 MPa), and elastic modulus (up to 360 MPa) are determined; and the microstructure is investigated. The phase composition of some ceramics, in addition to the initial components, contains new phases: MoB, ZrC, and Mo 4.8 Si 3 C 0.6 .
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659621060237