Strengthening a ceramic by post sinter coating with a compressive surface layer
US4781970A · kind A · utility
19Cited by
8References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Jul 15, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24926
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Strengthened ceramic and a method for increasing the mechanical strength of fully sintered ceramic articles, in particular alumina type ceramic and glass-ceramic articles. Such articles are strengthened by forming a compresssive material layer of amorphous silicon dioxide or refractory metal nitride on the surface of the article to be strengthened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.