Effect of Al2O3 content on the synthesized products by the laser ignited self-propagating high-temperature synthesis reaction of Al2O3–Ti–C system
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Abstract
The effect of Al2O3 content on ignition temperature and combustion temperature, the phase composition, the density of the products and the grain size of TiC was investigated by self-propagating high-temperature synthesis reaction of Al2O3–Ti–C system. The results show ignition temperature increases and combustion temperature decreases with the increasing of Al2O3 content; the density of the products varies with Al2O3 content, TiC and Al2O3 are the two stable phases after SHS, TiC particle size decreases with the increasing of Al2O3 content, furthermore, the fracture type of the sintered specimens is a nearly completely intergranular mode.
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