Fiber reinforced glass/glass-ceramic mirror blanks
US4554197A · kind A · utility
23Cited by
3References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1984 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Jun 18, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to the production of mirror blanks comprising a low expansion graphite or SiC fiber reinforced glass-ceramic composite substrate with a surface facing of a glass or glass-ceramic bonded thereto having an expansion closely matching that of the composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.