Method of producing crystallized glass from phosphate glass
US4417912A · kind A · utility
8Cited by
7References
3Claims
0Family size
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Key dates
| Filing date | Oct 28, 1981 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | Oct 28, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/17
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A phosphate glass such as calcium metaphosphate (Ca(PO.sub.4).sub.2) is heat-treated in a temperature gradient to obtain a crystallized glass (glass-ceramics) made of oriented fiber like crystals which has high bending strength in an abraded state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.