Using an in situ synthesis method, TiN-Si3N4 composites were successfu
lly fabricated by hearing mixed powder compacts of Ti and Si3N4 in a n
itrogen atmosphere. Mechanical properties with different Ti additions
were tested. According to XRD analysis, the TiN and TiSi phases were f
ormed during sintering. No other titanium silicides were found. The mi
crostructure of this materials were investigated by SEM and EDS.