Analysis Of Physical Properties and Phase Transformation in TiO2 Due to Sinteering Temperature Variation
Melenia Tambunan1, Siti Nuraini1 and Ramlan1*

Physics Department FMIPA University of Sriwijaya, Palembang, Indonesia

Abstract

Observation was to determine the effect of the Titanium Dioxide material on physical properties and crystal structure of TiO2. The Pellet of titanium dioxide have formed using the sintering method with variation of sintering temperature. This method uses Titanium dioxide powder as raw material without any other mixture. The Titanium dioxide powder was pulverized using the High Energy Milling for one hour and continued with compacting to form a pellet with the Carver Press with 8 tons force. Then the pellets are sintered using a furnace with temperature variations of 850C, 1000C, 1150C and 1250C. Characterization of sintered samples includes measurement of density, porosity, XRD and hardness. The results showed that the 850C sample had the smallest density with a value of 2.23 &#119892-&#119903-/&#119888-&#119898-3 and had the largest porosity around 14% and the smallest hardness value of 228 HV and indicated an anatase phase. Further for samples sintered at 1250C the sample has the greatest density of 2.37 &#119892-&#119903-/&#119888-&#119898-3 and had the smallest porosity of 5% and the greatest hardness value of 309 HV and the rutile phase occured. The results of phase analysis with XRD indicate that phase changes occur from anatase to rutile phase while the temperature increases.

Keywords: Titanium dioxide, sinteering, milling, density, porosity

Topic: Physics and Applied Physics