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

2nd International Conference on Frontiers of Materials Synthesis and Processing

Wu, Shengcai^1 ; Luo, Xuan^1 ; Long, Yongfu^1 ; Xu, Benjun^1

School of Materials Metallurgy, University Laboratory of Metallurgical Engineering and Process Energy Conservation, Guizhou

550025, China^1

关键词: Anatase titanium dioxide;    High temperature condition;    High temperature samples;    High-temperature in situ;    Phase transformation mechanisms;    Phase transformation process;    Rietveld refinement method;    Temperature conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/493/1/012010/pdf
DOI  :  10.1088/1757-899X/493/1/012010

来源: IOP

【 摘 要 】

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.