|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Materials Processing Fundamentals
||Evaluation Feature of Nano Grain Growth of TiO2 Thin Film via Sol- gel Route
||Habibollah Aminirastabi, Z.Z Weng, Z.X Xiong, G Ji, H Xue
|On-Site Speaker (Planned)
TiO2 films were successfully coated via a spin coating sol–gel route, using tetrabutyl titanate as main raw reagents. One batch of samples was sintered at different temperatures, from 300⁰C to 800⁰C, for 2 hours, while another ones of them were treated at 700 ⁰C for different soaking time (1 to 600 minutes). The phase compositions of the films were identified with X-ray diffraction (XRD). The microstructure of the coating were observed by a scanning electron microscope (SEM). Experimental results indicated that well-developed crystallinity and good morphology of TiO2 could be synthesized above 500 °C for 2 h. The crystallinity and morphology of grains in films were affected by the reaction temperature and time. However, image analysis shows that sintering temperature had a great impact on the crystallinity and particles size of the samples above 700 °C. Kinetic exponents of grain growth were also obtained with image processing software.
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