Ceramics composites
US4969913A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1988 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Sep 27, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/924
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Ceramic composite comprising a porous ceramic body having directly fitted thereon a dense ceramic body, the composite is produced by a process which comprises the steps of: separately producing the porous ceramic body and the dense ceramic body, inserting a projecting portion of the dense body into a bore portion of the porous body, and simultaneously sintering both the dense and porous bodies at a sintering temperature. The ceramic composite has excellent properties such as heat resistance, resistance to thermal cycle, water resistance and in vivo compatibility, and therefore is particularly useful as an implant material such as an artificial tooth root, an artificial bone and a percutaneous device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.