Ceramic article
US5798308A · kind A · utility
27Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1997 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Oct 7, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/486
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is a sintered ceramic article having an elemental composition including Zr, O, and at least one element selected from the group consisting of Mg, Ca, Y, Sc, Ce and rare earth elements. The ceramic article includes a core and a casing. The casing is exterior to and continuous with the core. The core is a mass of sintered particles having an essentially tetragonal zirconia crystalline structure and the casing is a mass of sintered particles having a mixture of monoclinic zirconia crystalline structure and zircon crystalline structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.