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Rietveld refinements of a new solid solution Ba(3−x)Srx(PO4)2 (0≤x≤3)

Published online by Cambridge University Press:  06 March 2012

B. Manoun,
L. Popović,
D. De Waal and
S. M. C. Verryn
B. Manoun
Affiliation:
Department of Chemistry, University of Pretoria, 0002 Pretoria, South Africa
L. Popović
Affiliation:
Department of Chemistry, University of Pretoria, 0002 Pretoria, South Africa
D. De Waal*
Affiliation:
Department of Chemistry, University of Pretoria, 0002 Pretoria, South Africa
S. M. C. Verryn
Affiliation:
Department of Geology (XRD and XRF Laboratory), University of Pretoria, 0002 Pretoria, South Africa
*
a)Author to whom correspondence should be addressed. Electronic mail: ddewaal@postino.up.ac.za
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Abstract

Ba(3−x)Srx(PO4)2 orthophosphates (0≤x≤3) have been prepared by solid state reaction. The final temperature was 1000°C. The X-ray diffraction analyses show the existence of a continuous solid solution. Ba(3−x)Srx(PO4)2 orthophosphates (0≤x≤3) crystallize in the hexagonal system with the space group R3m. Their structure is based on a three-dimensional framework constructed of infinite layers of Ba1/Sr1O12 linked and parallel to infinite layers of Ba2/Sr2O10 polyhedra and PO4 tetrahedra.

Keywords

orthophosphatesX-ray diffractionRietveldBa(3−x)Srx(PO4)2

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Type
Technical Articles
Information
Powder Diffraction , Volume 18 , Issue 2 , June 2003, pp. 122 - 127
Copyright
Copyright © Cambridge University Press 2005

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References

Bérar, J.-F., and Lelann, P. (1991). “E.S.D.’s and estimate probable errors obtained in Rietveld refinements with local corrections,” J. Appl. Crystallogr. JACGAR 24, 1–5. acr, JACGAR CrossRefGoogle Scholar
Popović, L., Manoun, B., and de Waal, D. (2002). “Crystal chemistry, vibrational spectra and factor group analysis of Ba(3−x)Srx(PO4)2 (0≤x≤3) solid solution series,” J. Alloys Compd. JALCEU 343, 82–89. jal, JALCEU CrossRefGoogle Scholar
Rodriguez-Carvajal, J. (1990). “FULLPROF: A program for Rietveld refinements and pattern matching analysis,” Abstracts of the Satellite Meeting on Powder Diffraction of the XV Congress of the IUCr, Toulouse, France, p. 127; Physica B PHYBE3 192, 55–69 (1993). phb, PHYBE3 Google Scholar
Sugiyama, K., and Tokonami, M. (1990). “The crystal structure refinements of the strontium and barium orthophosphates,” Mineral. J. MJTOAS 15, 141–146. mjt, MJTOAS CrossRefGoogle Scholar
Zachariasen, W. H. (1948). “The structure of the normal orthophosphates of Barium and Strontium,” Acta Crystallogr. ACCRA9 1, 263–265. acc, ACCRA9 CrossRefGoogle Scholar