Abstract Structural phase plays a crucial role in the applications of pyrochlores. Nanocrystalline Nd2Zr2O7 (NZO) pyrochlore was prepared by chemical co-precipitation method and its structural phase transformation with heat-treatment temperature (Tc) is studied. Monophasic fluorite structured NZO was observed at 800 °C, and it has progressively transformed into pyrochlore phase with further increasing the Tc and the process is complete with monophasic pyrochlore NZO at 1300 °C. A detailed study by using X-ray diffraction, Raman spectroscopy, and transmission electron microscopy supported this type of structural phase transition and reported in this work.

中文翻译：

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纳米晶 Nd 2 Zr 2 O 7 中萤石到烧绿石的相变

摘要 结构相在烧绿石的应用中起着至关重要的作用。采用化学共沉淀法制备纳米晶Nd2Zr2O7(NZO)烧绿石，研究了其结构相变随热处理温度(Tc)的变化。在 800°C 观察到单相萤石结构的 NZO，并且随着 Tc 的进一步增加，它逐渐转变为烧绿石相，并且在 1300°C 时单相烧绿石 NZO 完成该过程。使用 X 射线衍射、拉曼光谱和透射电子显微镜进行的详细研究支持这种类型的结构相变，并在这项工作中进行了报道。