L773:0885 7156 OR L773:1945 7413
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Synthesis and Rietveld refinements of new ceramics Sr2CaFe2WO9 and Sr2PbFe2TeO9 perovskites
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- El Hachmi, Abdelhadi (author)
- Univ Hassan Ier, LS3M, Khouribga 25000, Morocco
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- Tamraoui, Y. (author)
- Univ Mohammed VI Polytech, Mat Sci & Nanoengn MSN, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco;Univ Hassan Ier, LS3M, Khouribga 25000, Morocco
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- Manoun, Bouchaib (author)
- Univ Mohammed VI Polytech, Mat Sci & Nanoengn MSN, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco;Univ Hassan Ier, LS3M, Khouribga 25000, Morocco
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- (creator_code:org_t)
- J C P D S-INT CENTRE DIFFRACTION DATA, 2018
- 2018
- English.
- In: Powder Diffraction. - : J C P D S-INT CENTRE DIFFRACTION DATA. - 0885-7156 .- 1945-7413. ; 33:2, s. 134-140
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Ceramics of Sr2CaFe2WO9 and Sr2PbFe2TeO9 double perovskites have been prepared in polycrystalline form by solid-state technique, in the air. The crystalline structure was analyzed using X-ray powder diffraction (XRPD) at room temperature. Rietveld analysis of XRPD) patterns show that both compounds adopt a tetragonal structure with space group I4/m, with unit cell parameters a = 5.5453(1) angstrom, c = 7.8389(1) angstrom for Sr(2)CaFc(2)WO(9), and a = 5.5994(15) angstrom, c = 7.8979(30) angstrom for Sr2PbFe2TeO9. A certain degree of anti-site disordering of W and/or Te and Fe on the B -sites have been detected, indicating the presence of a partial amount of W and/or Te at Fe positions and vice versa.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Keyword
- Sr2CaFe2WO9
- Sr2PbFe2TeO9 crystal structure
- X-ray diffraction
Publication and Content Type
- ref (subject category)
- art (subject category)
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- El Hachmi, Abdel ...
- Tamraoui, Y.
- Manoun, Bouchaib
- Haloui, R.
- Elaamrani, M. A.
- Saadoune, I.
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- Bih, L.
- Lazor, Peter
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- NATURAL SCIENCES
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- Uppsala University
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