Zirconia-base sintered bodies having coating films
US5026601A · kind A · utility
6Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 29, 1988 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Feb 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A zirconia-base sintered body comprising a sintered substrate containing 30% by volume or more of tetragonal zirconia and a coating film disposed thereon, characterized in that the diffusion coefficient of oxygen in a material forming said coating film at no higher than 550.degree. C. is smaller than that of oxygen in said tetragonal zirconia at a temperature of no higher than said temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.