Sol-gel method for the preparation of monolithic multicomponent oxide glasses
US5206189A · kind A · utility
19Cited by
10References
27Claims
0Family size
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Key dates
| Filing date | Oct 25, 1991 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Oct 25, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S501/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved method for the production of a monolithic multicomponent oxide glass is achieved by forming an oxide host gel by a sol-gel process, placing the host gel in an aqueous solution of a salt of at least one metal selected from the group consisting of Li, Na, K, Rb, Cs, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Pb, precipitating the metal salt in the gel and sintering the gel containing the precipitated salt. The method can incorporate large amounts of metals into the glass which are otherwise difficult or impossible to incorporate into precursor gels by conventional methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.