Effect of various sintering temperature of ceramic TiO2 on physical properties and crystall structure

Abstract

Titanium dioxide has been made by using sintering method with variation of temperature sintering. This method uses 100 % of Titanium dioxide powder as the raw material. The Titanium dioxide powder was pulverized by using High Energy Milling for one hour and continued with compacted to form a pellet by dry pressing with 8 tons force. Then the pellets were sintered by using electrical furnace with variation of temperature of 700 C, 850 C and 1000 C. The characterization of sintered samples includes measurement of density, porosity, hardness and XRD. The results show that the sintered 700 C sample has the smallest density of 1.94 g/cu.cm and the largest porosity 20 % and hardness 228 Hv. For the sintered 1000 C samplehas greatest density of 2.38 g/cu.cm and smallest porosity of 15.9% and hardness 276 Hv. The results of the phase anlysis with XRD show that the dominant phase is anatase and minor phase is rutile.