Fabrication of Ti 3SiC 2 powders using TiH 2 as the source of Ti

High purity titanium silicon carbide powders were prepared by pyrolysis and heat treatment of polycarbosilane and TiH2 powders. The results showed that high purity Ti3SiC2 could be obtained when the temperature of pyrolysis is 700 degrees C. The purity of the products is about 96%, which is calculated by RIR method. The atomic ratio (Ti:Si:C) of the products is about 3.06:1:1.96, which exactly conforms to the stoichiometric ratio of Ti3SiC2. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.