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用同步辐射和高温DAC装置研究Fe₂SiO₄的γ→α相变动力学过程

A STUDY ON THE KINETIC PROCESS OF THE REVERSE-TRANSI TION OF γ→α IN Fe₂SiO₄ BY USINGSYNCHROTRON RADIATION AND HT-DAC

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【作者】王莉君；

【Author】 Wang Lijun(Instuute of Physics, Academia Sinica, Beijing 100080)L. C. Ming, M. H. Manghnani, J. Balogh(Dept. of Geology and Geophysics, Univ. of Hawaii,Honolulu HI 96822)

【机构】中国科学院物理研究所；

【摘要】通过对γ－Ｆｅ＿２ＳｉＯ＿４样品在常压和温度分别为８９４、９２６、９４８和９９３Ｋ时转变为α相的实验的具体描述，介绍了采用同步辐射和高温ＤＡＣ装置及高压高温原位Ｘ光衍射技术进行高温高压相变动力学过程研究的一般方法。更多还原

【Abstract】 The method of studying the kinetic process of phase transition by means of in situhigh presaure and high temperature X-ray diffraction with synchrotron radiation and high tempor-ature DAC apparatus has been described. The results of the study on Fe₂SiO₄ reverse transforma-tion from γ phase to α phase under ambient pressure and various high temperatures （894, 926 ,948 and 993 K） are reported.更多还原