Ceramic Matrix Composite Based on Silicon Carbide with Eutectic Additives

A composite ceramic was obtained from granular silicon carbide dispersion-hardened with eutectic additives of the system Al 2 O 3 –MnO–TiO 2 was obtained. The influence of the dispersed powder of the eutectic in system Al 2 O 3 –MnO–TiO 2 on the sintering indicators of the ceramic matrix composite b...

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Bibliographic Details
Published in:Glass and ceramics 2019-09, Vol.76 (5-6), p.183-187
Main Authors: Soe, Khin Maung, Popova, N. A., Lukin, E. S.
Format: Article
Language:English
Subjects:
Additives
Aluminum oxide
Bend strength
Ceramic matrix composites
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Dispersion hardening
Eutectic composition
Glass
Manganese oxides
Materials Science
Natural Materials
Porosity
Powders
Pressing
Silicon
Silicon carbide
Sintering
Sintering (powder metallurgy)
Titanium dioxide
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Summary:A composite ceramic was obtained from granular silicon carbide dispersion-hardened with eutectic additives of the system Al 2 O 3 –MnO–TiO 2 was obtained. The influence of the dispersed powder of the eutectic in system Al 2 O 3 –MnO–TiO 2 on the sintering indicators of the ceramic matrix composite based on the granular silicon carbide was studied as a function of the silicon-carbide/eutectic-additive ratio 99/1, 97/3, and 95/5 and the pressing pressure. It was determined that after firing at 1350°C and pressing under pressure 200 MPa with introduction of 5% (weight content) eutectic additive with composition A or B the porosity is equal to 5.6 and 4.1%; the strength in bending reaches 65 ± 5 and 85 ± 5 MPa, respectively.
ISSN:0361-7610
1573-8515
DOI:10.1007/s10717-019-00161-y