| 第二相Ba6Ti17O40形成动力学的研究 |
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| 引用本文： | 胡金元.第二相Ba6Ti17O40形成动力学的研究[J].物理学报,1991,40(9):1485-1491. |
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| 作者姓名： | 胡金元 |
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| 作者单位： | 华中理工大学机械工程二系,武汉,430074 |
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| 摘 要： | 本文对添加过量TiO2的BaTiO3中所形成的第二相Ba6Ti17O40的动力学进行了高温X射线衍射的实验研究,得到在不同温度下的富钛相Ba6Ti17O40形成时的反应曲线,计算了反应速率常数K和反应激活能Q,并对第二相形成机制和过量钛的影响进行了讨论。
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| 关 键 词： | Ba6Ti17O40 半导体 陶瓷 动力学 |
| 收稿时间： | 1990-10-29 |
KINETICS OF SECOND PHASE Ba6Ti17O40 FORMATION |
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| HU JIN-YUAN.KINETICS OF SECOND PHASE Ba6Ti17O40 FORMATION[J].Acta Physica Sinica,1991,40(9):1485-1491. |
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| Authors: | HU JIN-YUAN |
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| Abstract: | Kinetics of second phase Ba6Ti17O40 formation in the mixture of BaTiO3 and excess TiO2 were studied by high-temperature X-ray diffraction method. The reaction curves were obtained at various temperatures for the formation of Ti-rich phase Ba6Ti17O40, and the reaction rate constant K and the activation energy Q were calculated. Finally, the mechanism of second phase Ba6Ti17O40 formation and the effect of excess TiO2 are discussed. |
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