High Temperature Composites Sic-Al2O3-Ceramics with Al2O3-Matrix
- *Corresponding Author:
- Garshin AP
State Polytechnic University
St. Petersburg, Russia
E-mail: [email protected]
Received Date: January 21, 2015 Accepted Date: May 14, 2015 Published Date: June 05, 2015
Citation: Garshin AP, Shumyacher VM, Pushkarev OI, Kulik VI (2015) High Temperature Composites Sic-Al2O3-Ceramics with Al2O3-Matrix. J Powder Metall Min 4:131. doi:10.4172/2168-9806.1000131
Copyright: © 2015 Garshin AP, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The objective of the present study has consisted in obtaining and studying the properties of the composite material based on silicon carbide and corundum. The synthesis process of the composite material is effected by means of adding aluminum to the traditional charge used in the technology of silicon carbide obtaining by the reaction of SiO2+3C=SiC+2CO (eq 1). The adding of aluminum into the said charge stipulates its flow in accordance with the reaction of SiO2+C+4/3 Al=SiC+2/3 Al2O3 ↔ SiC-Al2O3 (eq 2). The reaction (2) proceeds to form the composite material of the two-phase system SiC-Al2O3 that represents the aggregate of many grains of silicon carbide SiC allocated in the corundum matrix Al2O3.