Correa, H. P. S. [UNESP]Paiva-Santos, C. O. [UNESP]Setz, L. F.Martinez, L. G.Mello-Castanho, S. R. H.Orlando, M. T. D.2014-05-202014-05-202008-06-01Powder Diffraction. Newtown Sq: J C P D S-int Centre Diffraction Data, v. 23, n. 2, p. S18-S22, 2008.0885-7156http://hdl.handle.net/11449/41246Results of crystal structure refinements and phase quantification for samples of Co-doped lanthanum chromites with nominal composition LaCr(1-x)Co(x)O(3), for x=0.00, 0.10, 0.20, and 0.30, prepared by combustion synthesis are presented. The resulting powders were characterized by scanning electron microscopy and X-ray diffraction (XRD). The XRD patterns were obtained with Cu K alpha radiation for non-doped lanthanum chromite sample and additionally with Cr K alpha radiation for Co-doped lanthanum chromites samples, in order to enhance the signal from scattering. Rietveld analysis of XRD data showed that the studied samples presented the lanthanum chromite with an orthorhombic structure (Pnma), except for the composition with x=0.30, in which the space group was found to be R (3) over barc. (C) 2008 International Centre for Diffraction Data.S18-S22engLaCrO(3)lanthanum chromiteRietveldX-ray diffractionTrabalho apresentado em evento10.1154/1.2903501WOS:000256828200005Acesso aberto