Method of fining glass
US7475568B2 · kind B2 · utility
11Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Jan 27, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/091
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of forming an oxide glass including heating a glass melt having a β—OH concentration of at least about 0.35 in a vessel comprising a metal selected from the group consisting of platinum, molybdenum, palladium, rhodium, and alloys thereof, there being an interface present between the vessel and the glass, and controlling a partial pressure of hydrogen in an atmosphere in contact with an outside surface of the vessel in an amount such that hydrogen permeation blisters form in a region of the glass adjacent the glass-vessel interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.