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

Exploring the Phase Transformation Mechanism of Titanium Dioxide by High Temperature in Situ Method
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高温原位法探索二氧化钛的相变机理

DOI:
10.1088/1757-899x/493/1/012010
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发表时间:
2019-03
期刊:
IOP Conference Series: Materials Science and Engineering
影响因子:
--
通讯作者:
Benjun Xu
Benjun Xu
中科院分区:
其他
文献类型:
--
作者:
Shengcai Wu;Xuan Luo;Yongfu Long;Benjun Xu

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本研究通过高温样品台的实时测量和Rietveld精修法,对不同温度条件下二氧化钛的实时相态测量进行了测试。分析了高温条件下二氧化钛的实时相变过程。结果表明,当无定形偏钛酸在二氧化钛相变过程中转变为锐钛矿型二氧化钛时,锐钛矿型二氧化钛的(101)晶面最稳定,锐钛矿相沿c轴择优生长。在锐钛矿型二氧化钛和金红石型二氧化钛中,金红石型二氧化钛的(110)晶面最稳定,而金红石型二氧化钛没有择优取向。
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.
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影响因子: 2.7
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