Effect of ammonia nitridation conditions on synthesis of titanium nitride nano-particles by direct nitridation of titanium oxide

摘要

Among transition metal nitrides, the most attention has been paid to titanium nitride (TiN), due to its excellent corrosion resistance, wear resistance, extreme hardness (2160 kg/mm~2), high melting temperature (2950 °C), high chemical stability, low friction coefficient and high electrical conductivity. Comparing to the conventional bulk material, TiN in nano-scale has high surface area, which makes it an attractive candidate for supercapacitors, an excellent catalyst, and in case of use for nanocomposites to achieve enhanced conductivity, super-hardness and excellent toughness. In this research, nanocrystalline TiN powder were synthesized using ammonia (NH3) nitridation of nanocrystalline TiO2 powder.