Solid state miscibility in the pseudo-binary TiO2 - (FeSb)O4 system at 1373 K (Articolo in rivista)

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  • Solid state miscibility in the pseudo-binary TiO2 - (FeSb)O4 system at 1373 K (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Alternative label
  • Alberto Martinelli; Maurizio Ferretti; Riccardo Basso; Roberto Cabella; Gabriella Lucchetti; Pietro Marescotti; Vincenzo Buscaglia (2004)
    Solid state miscibility in the pseudo-binary TiO2 - (FeSb)O4 system at 1373 K
    in Zeitschrift für Kristallographie; Oldenbourg Verlag, Munich (Germania)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Alberto Martinelli; Maurizio Ferretti; Riccardo Basso; Roberto Cabella; Gabriella Lucchetti; Pietro Marescotti; Vincenzo Buscaglia (literal)
Pagina inizio
  • 487 (literal)
Pagina fine
  • 493 (literal)
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  • http://puma.isti.cnr.it/linkres.php?resource=cnr.ieni/cnr.ieni.ge/2004-A0-021 (literal)
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  • 219 (literal)
Rivista
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  • In: Zeitschrift fur Kristallographie, vol. 219 pp. 487-493. Oldenbourg Verlag, 2004. (literal)
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  • 7 (literal)
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  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
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  • INFM-LAMIA, C.so Perrone, 24, I-16152 Genova, Italy; Dipartimento di Chimica e Chimica Industriale & INFM-LAMIA, Via Dodecaneso 31, I-16146 Genova, Italy; Dipartimento per lo Studio del Territorio e delle sue Risorse, Corso Europa 26, I-16132 Genova, Italy; Istituto per l'Energetica e le Interfasi, CNR, Via De Marini 6, I-16149 Genova, Italy (literal)
Titolo
  • Solid state miscibility in the pseudo-binary TiO2 - (FeSb)O4 system at 1373 K (literal)
Abstract
  • The tetragonal rutile-type (FeSb)O4 compound was synthesized reacting Fe2O3 and Sb2O3 in O2. Solid solubility in the pseudo-binary TiO2-(FeSb)O4 (rutile - tripuhyite) system was investigated annealing powder mixtures characterized by different TiO2(FeSb)O4 molar ratios in an O2 flux. Complete miscibility was found in the whole compositional range at 1373 K. The crystal structures of (FeSb)O4 and selected terms of the (Ti2xFe1-xSb1-x)O4 solid solution (0 <= x <= 1) were refined from X-ray powder diffraction data using the Rietveld method. Selective broadening of the X-ray lines was observed and analyzed by means of the Gaussian quadratic plot. Line broadening is probably related to a phase transformation taking place at low temperature, as suggested by the excess molar volume of the solid solution. As a result local chemical inhomogeneity and microstrain in the direction perpendicular to the 00l lattice planes for compositions 0.2 <= x <= 0.6 are generated. (literal)
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