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1991 (1)
1Author    V. Massarotti, D. Capsoni, A. Marini, V. Berbenni, G. Flor, C. MargheritisRequires cookie*
 Abstract    t r u c t u r a l a n d D e fe c t S tu d y o f N a j T -G a ll a te by X -R a y P o w d e r D iffra c tio n A n a ly s is The Rietveld profile refinement has been applied to X-ray powder diffraction data on Na/T-gallate, a solid electrolyte isostructural with Na/T-alumina and characterized by different types of lattice defect. Several structural models have been refined and discussed in order to understand if a statistical comparison of the structure discrepancy factors can be used as a reliable criterion to retain or reject structural changes from one model to the other. It is shown that, due to the correlation between structural parameters and to the poor sensitivity of the structure discrepancy factors to chemical composition, some care is necessary to direct correctly the refinement and to obtain a reliable structural model. 
  Reference    Z. Naturforsch. 46a, 321 (1991); received January 7 1991 
  Published    1991 
  Keywords    Powder diffraction Profile refinement, Na/T-gallate, Point defects, Solid electrolyte 
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 TEI-XML for    default:Reihe_A/46/ZNA-1991-46a-0321.pdf 
 Identifier    ZNA-1991-46a-0321 
 Volume    46