Synthesis of Ti(C,N)/Al2O3 by Mechanically Induced Self-Propagating Reactive Synthesis
Ti(C,N)/Al2O3 in situ solid solution composites have been synthesized by mechanically induced self-propagating reactive synthesis (MSR) from the mixture of Ti, Al, C and TiO2 in nitrogen milling atmosphere. The phase transformation and powder morphology characteristics were studied by using XRD and SEM. Full dense and pure Ti(C,N)/Al2O3 composites were fabricated at 1450 °C for 1 h under 10 MPa. The phase composition, microstructure and some mechanical properties of the composites were investigated. The results show that the synthesized Ti(C,N)/Al2O3 composites posses a density of 4.66 g/cm3 and a good combination of mechanical properties of hardness of 25.54 GPa and the flexural strength of 404 MPa. The reaction process mechanism was also discussed.
Hyungsun Kim, Jian Feng Yang, Chuleol Hee Han, Somchai Thongtem and Soo Wohn Lee
J. F. Zhu et al., "Synthesis of Ti(C,N)/Al2O3 by Mechanically Induced Self-Propagating Reactive Synthesis", Materials Science Forum, Vol. 695, pp. 437-440, 2011