Pressure-Induced Phase Transitions of Hydrous Zirconium Tetrafluoride
- Autores: Junhua Xi 1, Yanwei Huang 1,2
-
Afiliações:
- College of Materials and Environmental Engineering, Hangzhou Dianzi University
- Center for High Pressure Science and Technology Advanced Research
- Edição: Volume 45, Nº 2 (2019)
- Páginas: 133-137
- Seção: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/217041
- DOI: https://doi.org/10.1134/S1087659619020123
- ID: 217041
Citar
Resumo
The high pressure behaviors of hydrous zirconium tetrafluoride have been investigated by in situ synchrotron X-ray diffraction, Raman spectroscopy and infrared (IR) absorption measurements. The phase transition occurs under high pressure (0–28 GPa). The α phase transforms into β phase at 7.3 GPa and then γ phase at 13.2 GPa. The high pressure γ phase can be quenched to the starting phase when pressure is releasing to 0 GPa, indicating the reversible phase transition. Furthermore with increasing pressure, fluid molecular water occurs around 11.0 GPa from starting structurally bonded water state according to IR absorption which offer a clue to obtain pury anhydrous salts because of instability of hydrous zirconium tetrafluoride under ambient conditions.
Palavras-chave
Sobre autores
Junhua Xi
College of Materials and Environmental Engineering, Hangzhou Dianzi University
Email: ywhuang@hdu.edu.cn
República Popular da China, Hangzhou, 310018
Yanwei Huang
College of Materials and Environmental Engineering, Hangzhou Dianzi University; Center for High Pressure Science and Technology Advanced Research
Autor responsável pela correspondência
Email: ywhuang@hdu.edu.cn
República Popular da China, Hangzhou, 310018; Shanghai, 201203