Preparation and characterization of cubic ZrO2 stabilized by Fe(iii) and Fe(ii). Technical report

Technical Report · Fri May 15 04:00:00 EDT 1987

OSTI ID:6298092

Davison, S; Kershaw, R; Dwight, K; Wold, A

Samples of cubic zirconium oxide contained 2.5at% - 40at% ferric iron were prepared by codecomposition of the nitrates. X-ray powder-diffraction analysis and magnetic measurements indicated that alpha iron nitrate and ZrO2 form a solid solution up to 25at% Fe/Zr in the product. At this point, the solubility limit of alpha-Fe2O3 in ZrO2 is exceeded. The reduction of cubic zirconia samples containing 2.5 - 20at% Fe(III) leads to the stabilization of iron (II) in the zirconia lattice. Reduction to metallic iron occurs at much higher temperatures than the reduction of bulk alpha-Fe2O3.

• Research Organization: Brown Univ., Providence, RI (USA). Dept. of Chemistry
• OSTI ID: 6298092
• Report Number(s): AD-A-180414/5/XAB; TR-7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DISPERSIONS
ELEMENTS
GRAVIMETRIC ANALYSIS
HIGH TEMPERATURE
IRON
MAGNETIC FIELDS
METALS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
POWDERS
QUANTITATIVE CHEMICAL ANALYSIS
REDUCTION
SOLID SOLUTIONS
SOLUTIONS
STABILIZATION
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES