Accession Number:
ADA180414
Title:
Preparation and Characterization of Cubic ZrO2 Stabilized by Fe(III) and Fe(II).
Descriptive Note:
Technical rept.,
Corporate Author:
BROWN UNIV PROVIDENCE RI DEPT OF CHEMISTRY
Personal Author(s):
Report Date:
1987-05-15
Pagination or Media Count:
17.0
Abstract:
Samples of cubic zirconium oxide contained 2.5at - 40af 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 FeZr in the product. At this point, the solubility limit of alpha-Fe2O3 in ZrO2 is exceeded. The reduction of cubic zirconia samples containing 2.5at - 20at FeIII 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. Reprints
Descriptors:
- *PHASE STUDIES
- *DIFFRACTION ANALYSIS
- *SOLID SOLUTIONS
- *ZIRCONIUM OXIDES
- *CRYSTAL STRUCTURE
- *X RAY DIFFRACTION
- HIGH TEMPERATURE
- IRON
- MAGNETIC FIELDS
- MEASUREMENT
- METALS
- NITRATES
- POWDERS
- REDUCTION
- REPRINTS
- X RAYS
- REPRINTS
- SYNTHESIS(CHEMISTRY)
- REDUCTION(CHEMISTRY)
- THERMAL INSTABILITY
- GRAVIMETRIC ANALYSIS
Subject Categories:
- Crystallography
- Physical Chemistry