6533b830fe1ef96bd1296e94

RESEARCH PRODUCT

Rietveld refinement study of vanadium distribution in V+4–ZrSiO4 solid solutions obtained from gels

Francisco Jose TorresM. A. TenaJavier Alarcón

subject

Materials scienceRietveld refinementInorganic chemistryAnalytical chemistryVanadiumchemistry.chemical_elementCrystal structurechemistryMaterials ChemistryCeramics and CompositesSolubilityPowder diffractionZirconSol-gelSolid solution

description

Abstract Vanadium-containing zircon gel precursors with nominal compositions Vx–ZrSiO4 with x=0.0, 0.004, 0.01, 0.04 and 0.2 were prepared by a previously reported colloidal sol-gel technique and annealed for 30 h at 1400 °C. The Rietveld refinement of the structures by X-ray powder diffraction confirms previous results concerning the limit of solubility of V+4 in the zircon structure. The new finding regarding with the entry of V+4 in the Zr+4 site for zircon doped with high contents of vanadium is in accordance with reported results.

https://doi.org/10.1016/s0955-2219(01)00521-0