A Reitveld quantitative XRD phase-analysis of selected composition of the Sr(0.5+x)Sb(1−x)Fe(1+x)(PO4)3(0 < x < 0.50) system

A. Aatiq; R. Tigha; A. Attaoui; N. Nadi; A. El Bouari

doi:10.1051/matecconf/20130504018

All issues

Volume 5 (2013)

MATEC Web of Conferences, 5 (2013) 04018

Abstract

Open Access

Issue		MATEC Web of Conferences Volume 5, 2013 REMCES XII – XII^e Rencontre Marocaine sur la Chimie de l'État Solide


Article Number		04018
Number of page(s)		3
Section		Poster Communications
DOI		https://doi.org/10.1051/matecconf/20130504018
Published online		09 September 2013

MATEC Web of Conferences 5, 04018 (2013)

A Reitveld quantitative XRD phase-analysis of selected composition of the Sr_(0.5+x)Sb_(1−x)Fe_(1+x)(PO₄)₃(0 < x < 0.50) system

A. Aatiq, R. Tigha, A. Attaoui, N. Nadi and A. El Bouari

Laboratoire de Physico-Chimie des Matériaux Appliqués, Université HassanII-Mohammédia-Casablanca, Faculté des Sciences Ben M'Sik, Avenue Idriss El harti, BP. 7955, Casablanca, Morocco

Abstract

Qualitative XRD phase-analysis of four (x = 0.10, 0.20, 0.30, 0.40) selected compositions of the Sr_(0.5+x)Sb_(1−x)Fe_(1+x)(PO₄)₃(0 < x < 0.50) system was undertaken. XRD data shows the absence of a continuously solid solution. In fact, each composition is composed only of a mixture of the two end members, Sr_0.50SbFe(PO₄)₃ (R $See Formula in PDF$ $\bar{3}$ space group) and SrSb_0.50Fe_1.50(PO₄)₃ (R $See Formula in PDF$ $\bar{3}$ c space group), type-phases. Rietveld refinement method, using the XRPD technique, has been used for a quantitative phase-analysis of these compositions. In order to evaluate the relative errors of this experimental result, a set of standard phase-mixtures of both end compositions of the system was also quantified by the Rietveld method. Obtained results show the usefulness of this method for quantitative phase-analysis, particularly in geology including other classes of materials such clay and cement.

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