Measurements of x‐ray diffraction for liquid metals under high pressure
Measurements of x‐ray diffraction for liquid metals under high pressure
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高压液态金属的 X 射线衍射测量
DOI：
10.1063/1.1140736
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发表时间：
1989
影响因子：
1.6
通讯作者：
T. Kikegawa
中科院分区：
文献类型：
--
作者：
K. Tsuji;K. Yaoita;M. Imai;O. Shimomura;T. Kikegawa
通过使用高亮度、高能量和能量连续谱的同步辐射，通过透射和能量色散方法在压力为9 GPa和温度为800 °C的条件下测量了液态金属的X射线衍射。使用用于高压和高温实验的立方型装置。由于对高能X射线（40-120 keV）的吸收系数较小，因此可以使用较厚的样品。尖锐狭缝系统消除了传压介质和样品容器的背景强度。该方法已被应用于研究液体硒、镓和铋中压力引起的结构变化。
By using synchrotron radiation with high brightness, high energy, and continuous spectrum in energy, x‐ray diffraction for liquid metals has been measured at pressures to 9 GPa and temperatures to 800 °C by a transmitting and energy‐dispersive method. A cubic‐type apparatus for high‐pressure and high‐temperature experiments was used. A thick specimen could be used as the absorption coefficient was small for high energy x rays (40–120 keV). A sharp slit system eliminated the background intensity from the pressure‐transmitting medium and the sample container. This method has been applied to the investigation of pressure‐induced structural changes in liquid selenium, gallium, and bismuth.