THE CRYSTAL-CHEMISTRY OF NONSTOICHIOMETRIC OXIDES WITH THE LOW-TEMPERATURE TA2O5 STRUCTURE

Authors
HARBURN G TILLEY RJD WILLIAMS RP
Citation
G. Harburn et al., THE CRYSTAL-CHEMISTRY OF NONSTOICHIOMETRIC OXIDES WITH THE LOW-TEMPERATURE TA2O5 STRUCTURE, Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties, 68(4), 1993, pp. 633-640
Citations number
26
Categorie Soggetti
Physics, Applied
Journal title
Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties → ACNP
ISSN journal
01418610
Volume
68
Issue
4
Year of publication
1993
Pages
633 - 640
Database
ISI
SICI code
0141-8610(1993)68:4<633:TCONOW>2.0.ZU;2-K
Abstract
A model is proposed for the idealized structures of the non-stoichiome tric Ta2O5:MOx phases which,possess the structure of the low-temperatu re form of Ta2O5. These are described as consisting of slabs of a beta -U3O8-type structure of variable width linked by slabs of alpha-U3O8-t ype structure which are of constant width. These structures are consis tent with the shift-lattice interpretation of the diffraction patterns and provide a crystal chemical basis for the formation of such phases .