Ceramic bodies formed from partially stabilized zirconia
US4923830A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Sep 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24165
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to ceramic bodies suitable for use in high temperature applications such as molten metal filters and kiln furniture. The ceramic bodies are formed from partially stabilized zirconia and are characterized by the presence of from about 12% to about 80% by weight zirconia in a monoclinic phase and the balance essentially in a cubic phase at room temperature. The ceramic bodies possess an excellent combination of physical properties including high temperature strength and thermal shock resistance. The invention also relates to the process for forming the ceramic bodies and the thixotropic ceramic slurry used therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.