Contribution

The polymorphism of K2HfF6

Saalfeld, H.; Guse, W.

Neues Jahrbuch für Mineralogie - Abhandlungen Band 146 Heft 1 (1983), p. 29 - 40

12 références bibliographiques

publié: Mar 10, 1983

DOI: 10.1127/njma/146/1983/29

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ArtNo. ESP154014601002, Prix: 29.00 €

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Abstract

Heating of K2HfF6 reveals a complex polymorphism that was investigated by means of a GuiNiER-temperature-chamber. Six different phases were found (monoclinic, orthorhombic, tetragonal, cubic, trigonal, hexagonal) and described. The observed structure types (especially perovskite) allow the understanding of the transformation mechanism. The x-ray data are presented in tables.

Mots-clefs

K₂HfF₆ • polymorphism • X-ray powder diffraction • temperature (20-450°C) • cell dimension • space group