Method for synthesizing MgO--Al.sub.2 O.sub.3 --SiO.sub.2 glasses and ceramics
US4604118A · kind A · utility
35Cited by
6References
8Claims
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Key dates
| Filing date | Aug 13, 1985 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Aug 13, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2207/90
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vapor phase method for the synthesis of MgO--Al.sub.2 O.sub.3 --SiO.sub.2 products, including MgO--Al.sub.2 O.sub.3 --SiO.sub.2 glasses of optical quality, wherein SiCl.sub.4, aluminum halide, and organometallic magnesium vapors are oxidized by flame oxidation and the oxides collected and sintered to glass or ceramic products, is described. A added shield gas stream is provided during flame oxidation of the vapors to reduce or prevent MgCl.sub.2 by-product formation at the burner and in the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.