Transactions of the INDIAN CERAMIC SOCIETY Vol. 57 1998
Oxidation Behaviour of Silicon Carbide :
Gel Derived Oxide Composite Systems
A. K. SAMANTA, K. K. DHARGUPTA AND S. GHATAK
Pages : 119-120
DOI : 10.1080/0371750X.1998.10804848
Abstract
Consolidation of composites in the system SiC-Al20 3 ,
SiC-Zr02 and SiC-MgO in relation to oxidation characteristics
of silicon carbide during firing in the ambient atmosphere
were studied. Al20 3, Zr02 and MgO additives were
derived through sol-gel route. SiC-Al20 3 system was found
to be more resistant towards oxidation of SiC where ultimate
fired phases were silicon carbide and mullite with traces of
cristobalite as detected by XRD. Both Al20 3 and Zr02 are
prospective, but MgO in the present system is not effective.
