Polycrystalline transparent spinel sintered body and method of producing the same
US4543346A · kind A · utility
24Cited by
2References
9Claims
0Family size
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Key dates
| Filing date | May 26, 1983 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | May 26, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The disclosed polycrystalline transparent sintered body contains Al.sub.2 O.sub.3 and MgO at a molar ratio of (0.54:0.46) to (0.58:0.42) and has an in-line transmittance of more than 77% for 1 mm thickness at a light wavelength of 0.6 .mu.m, which sintered body is produced by preparing fine spinel powder through hydrolysis of an isopropanol solution of aluminum isopropoxide and magnesium isopropoxide, forming a shaped body from the powder, and sintering the shaped body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.