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RESEARCH PRODUCT
Rietveld Refinement of Tetragonal V4+–ZrO2 Solid Solutions Obtained from Gels by X-ray Powder Diffraction
José María AmigóJavier AlarcoFrancico Jose Torressubject
ChemistryRietveld refinementCrystal structureCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsInorganic ChemistryCrystalTetragonal crystal systemCrystallographyLattice constantPowder DiffractometerMaterials ChemistryCeramics and CompositesPhysical and Theoretical ChemistryPowder diffractionSolid solutiondescription
Abstract The crystal structure of three tetragonal V x Zr 1− x O 2 solid solutions, with x =0.025, 0.05, and 0.075, prepared by heating dried gel precursors at 450°C in air atmosphere, have been determined by Rietveld refinement on the basis of powder X-ray powder diffractometer data. They contain V 4+ cations surrounded by eight oxygens, four at a distance between 2.079 and 2.093 A and another four at longer distances between 2.369 and 2.348 A. The estimation of the crystal average oxygen position from the X-ray lattice parameter of V x Zr 1− x O 2 conform with the relationship proposed by Howard et al. ( J. Am. Ceram. Soc. 81, 241 (1998)).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-01-01 | Journal of Solid State Chemistry |