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A neutron diffraction study of non-stoichiometric #alpha#-KYW_2O_8

机译:非化学计量的#alpha#-KYW_2O_8的中子衍射研究

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摘要

A neutron diffraction investigation of the non-stoichiometric a-KYW_2O_5 phase was carried out in order to study the influence of the compound composition on its structural properties. Three samples were analysed and refined using the Rietveld method. The best agreement factors were obtained for the composition at the center of the solid solution field. It was also shown that excess atoms (usually Y, exceptionally K and W) can occupy empty sites of the structure without any modification of the cell.
机译:为了研究化合物组成对其结构性质的影响,对非化学计量的α-KYW_2O_5相进行了中子衍射研究。使用Rietveld方法分析并精炼了三个样品。对于固溶场中心的组成,获得了最佳一致性因子。研究还表明,多余的原子(通常是Y,特别是K和W)可以占据结构的空位,而无需对细胞进行任何修饰。

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