TiO2 ceramics prepared using Pechini synthesis and laser sintering

Abstract

Nowadays, the laser sintering process has attracted the attention of researchers owing to advantages such as the possibility of using very high heating and cooling rates and the possibility of sintering materials with high melting point. TiO2 ceramics was produced from powders synthesized using the polymer precursor method. The purpose of this paper was the sintering of TiO2 samples using an unconventional method with CO2 laser as the heating source. Techniques such as differential thermal analysis, thermogravimetry, X-ray diffraction, scanning electron microscopy, and impedance spectroscopy were used for the sample characterizations. The sintering time was extremely fast, around 3 minutes. Moreover, the samples showed lower resistivity when compared to those sintered conventionally.