*Member, American Ceramic Society.
Temperature Dependence of the Cation Distribution in Nickel Aluminate Spinel from Thermodynamics and X-Rays
Article first published online: 19 AUG 2005
Journal of the American Ceramic Society
Volume 88, Issue 12, pages 3455–3457, December 2005
How to Cite
Han, Y. S., Li, J. B., Ning, X. S. and Chi, B. (2005), Temperature Dependence of the Cation Distribution in Nickel Aluminate Spinel from Thermodynamics and X-Rays. Journal of the American Ceramic Society, 88: 3455–3457. doi: 10.1111/j.1551-2916.2005.00603.x
D. Johnson—contributing editor
This work was supported by The National High Technology Research and Development Program of China (863 program) under No. 2002AA335012.
- Issue published online: 19 AUG 2005
- Article first published online: 19 AUG 2005
- Manuscript No. 186448. Received January 7, 2003; approved March 12, 2004.
The single crystal NiAl2O4 was prepared by a solid-state reaction. The change of its cation distribution with temperature was calculated by a modified thermodynamic equation by including a new parameter δ, which is a characteristic of nonconfiguration entropy. The calculated results showed that the degree of inversion for NiAl2O4 decreases with temperature, although the temperature dependence of cation distribution is very weak. This result was supported by X-ray diffraction measurement.