Exploring the Phase Transformation Mechanism of Titanium Dioxide by High Temperature in Situ Method

In this study, the real-time phase measurement of titanium dioxide under different temperature conditions was tested by real-time measurement of high temperature sample stage and Rietveld refinement method. The real-time phase transformation process of titanium dioxide under high temperature conditions was analyzed. The results show that the (101) crystal plane of anatase titanium dioxide is most stable when the amorphous metatitanic acid is transformed into anatase titanium dioxide during the phase transformation of titanium dioxide, and the growth of anatase has a preferred orientation along the c-axis. In the case of anatase-type titanium dioxide to rutile-type titanium dioxide, the (110) crystal plane of rutile-type titanium dioxide is the most stable, but the rutile type has no preferred orientation.