Member, American Ceramic Society.
Lattice Parameters, Ionic Conductivities, and Solubility Limits in Fluorite-Structure MO2 Oxide [M = Hf4+, Zr4+, Ce4+, Th4+, U4+] Solid Solutions
Article first published online: 8 MAR 2005
Journal of the American Ceramic Society
Volume 72, Issue 8, pages 1415–1421, August 1989
How to Cite
Kim, D.-J. (1989), Lattice Parameters, Ionic Conductivities, and Solubility Limits in Fluorite-Structure MO2 Oxide [M = Hf4+, Zr4+, Ce4+, Th4+, U4+] Solid Solutions. Journal of the American Ceramic Society, 72: 1415–1421. doi: 10.1111/j.1151-2916.1989.tb07663.x
N. J. Dudney—contributing editor
- Issue published online: 8 MAR 2005
- Article first published online: 8 MAR 2005
- Manuscript No. 198916. Received August 30, 1988; approved December 13, 1988.
- ionic conduction;
- solid solutions;
Changes in the lattice parameters of fluorite type MO2 oxides (M = Hf4+, Zr4+, Ce4+, Th4+, U4+) due to the formation of solid solutions can be predicted by proposed empirical equations. The equations show the generalized relationship between dopant size and ionic conductivity in the binary systems of these oxides, illustrating that the smaller the difference between the dopant ionic radius and the critical dopant radius, the higher the conductivity. The solubility limit of the same periodic group elements in fluorite-structure MO2 oxides decreaes linearly with the square of Vegard's slope for each solute as determined from the proposed equations.