Skip to main content Accessibility help

Cerium Oxygen Apatite (Ce4.67[SiO4]3O) X-Ray Diffraction Pattern Revisited

  • A. Cuneyt Tas (a1) and Mufit Akinc (a1)


A new X-ray diffraction pattern for the compound cerium oxygen apatite, Ce4.67[SiO4]3O is suggested. The compound was prepared by the solid state reaction of the oxides, CeO2 and SiO2 and has a hexagonal crystal structure with the lattice constants a = 9.6578 Å and c = 7.1187 Å. The sample of the most recent PDF pattern 31-0336* (Visser, 1978) for this compound is believed to be contaminated with significant quantities of N owing to the fact that it was prepared by mixing Ce2O3 and Si3N4 and its very close resemblance to the pattern displayed in the PDF 33-0333 given for the cerium “nitrogen” apatite, Ce5[SiO4]3N.



Hide All
Appleman, D.E. & Evans, H.T. (1973). U.S. Geological Survey, Computer Contribution 20, U.S. National Technical Information Service, Document PB-216188.
Belokoneva, E.L., Petrova, T.L., Simonov, M.A. & Belov, N.V. (1972). Soviet Physics-Crystallography 17, 429431.
Felsche, J. (1969). Naturwissenschaften, 22, 325326.
Gaude, J. (1987). Revue de Chimie Minerale, 24, 2227.
Gaude, J., L'Haridon, P., Hamon, C., Marchand, R. & Laurent, Y. (1975). Bull. Soc. fr. Mineral. Cristallogr. 98, 214217.
Guha, J.P. (1980). J. Mater. Sci. 15, 521522.
Lange, F.F. & Davis, B.I. (1979). J. Amer. Ceram. Soc. 62, 629630.
Lange, F.F. (1980). Amer. Ceram. Soc. Bull. 59, 239–240, 249.
Mah, T. et al. , Air Force Materials Laboratory, Wright-Patterson Air Force Base, Ohio, USA, JCPDS File #31-0336.
Mah, T., Mazdiyasni, K.S. & Ruh, R. (1979). J. Amer. Ceram. Soc. 62, 1216.
Visser, J. (1978). JCPDS Grant-in-Aid Report, JCPDS File Card #31-0336, Technisch Physische Dienst, Delft, Netherlands.


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed