Sanbornite-based glass-ceramic seal for high-temperature applications
US10658684B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jun 7, 2016 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jul 15, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A glass-ceramic seal for ionic transport devices such as solid oxide fuel cell stacks or oxygen transport membrane applications. Preferred embodiments of the present invention comprise glass-ceramic sealant material based on a Barium-Aluminum-Silica system, which exhibits a high enough coefficient of thermal expansion to closely match the overall CTE of a SOFC cell/stack (preferably from about 11 to 12.8 ppm/° C.), good sintering behavior, and a very low residual glass phase (which contributes to the stability of the seal).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.