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ANALYSIS OF THE TOTAL SCATTERING USING THE QUANTITATIVE HIGH PRESSURE PAIR DISTRIBUTION FUNCTION: CASE STUDIES

机译:使用定量高压对分布功能分析总散射:案例研究

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X-ray total scattering and pair distribution function analysis have been used to investigate the structural changes in nano-crystalline mackinawite (FeS), with three distinct particle sizes, at high pressure. Nano-crystalline mackinawite undergoes an irreversible first-order phase transition at about 3 GPa from tetragonal mackinawite to orthorhombic FeS-II. The transition mechanism and the grain size effect on the transition pressure and the compressibility have been determined.
机译:X射线总散射和配对分布函数分析用于研究纳米结晶鲭型(FES)的结构变化,具有三种不同的颗粒尺寸,高压。纳米结晶Mackinawite在从四边形鲭钛矿到正交FES-II的约3GPa处发生不可逆的一阶相转变。已经确定过渡机制和晶粒尺寸对转变压力的影响和压缩性。

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