Jump to main content
Jump to site search

Issue 11, 2011
Previous Article Next Article

The tolerance factors of the pyrochlore crystal structure

Author affiliations

Abstract

The tolerance factor (t) concept, widely used in crystallochemical analysis of perovskites ABO3, is here applied to A2B2O7 fluorite-derivative superstructure: pyrochlores. Based on geometrical considerations of the different cation coordination polyhedra two tolerance factors for pyrochlores are introduced. The t values were calculated for 315 pyrochlores. A stability field is proposed to distinguish A2+2B5+2O7 pyrochlores from A2+2B5+2O7 weberites. A relationship between the tolerance factors and dielectric properties and their applicability to analyze structure-propoerty relations within this family of compounds is also discussed.

Graphical abstract: The tolerance factors of the pyrochlore crystal structure

Back to tab navigation

Additions and corrections

Article information


Submitted
07 Oct 2010
Accepted
24 Dec 2010
First published
28 Jan 2011

J. Mater. Chem., 2011,21, 3611-3618
Article type
Paper

The tolerance factors of the pyrochlore crystal structure

L. Cai, A. L. Arias and J. C. Nino, J. Mater. Chem., 2011, 21, 3611
DOI: 10.1039/C0JM03380D

Search articles by author

Spotlight

Advertisements