Method for manufacturing stabilized zirconia
US6703334B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Dec 17, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/54
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The process produces a stabilized zirconia powder by first contacting zirconium basic carbonate particles with a stabilizer compound. This reacts the zirconium basic carbonate particles with the stabilizer compound through heterogeneous contact to form a stabilized zirconia precursor. The stabilizer compound is for stabilizing a phase structure selected from the group consisting of tetragonal phase, cubic phase and mixtures of tetragonal and cubic phases. And calcining the stabilized zirconia precursor removes gaseous by-products and forms the stabilized zirconia powder. The stabilized zirconia powder has a phase structure selected from the group consisting of tetragonal, cubic and mixtures of tetragonal and cubic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.