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Small Business Innovation Research/Small Business Tech Transfer

Development of Hermetic Sealing Glasses for Solid Oxide Fuel Cells, Phase I

Completed Technology Project

Project Introduction

Sealing glasses, either rigid glass-ceramics or viscous, non-crystallizing compositions, will be developed and sealing processes will be optimized based on NASA's solid oxide fuel cell (SOFC) designs. SOFC design constraints, including material selection and operational conditions, will guide compositional development, and then these new compositions will be used for long-term (>500 hours) material compatibility tests under SOFC operational conditions. Prototype seals will be produced and will be thermally cycled between room temperature and 850°C to test the thermo-mechanical compatibility of the sealing materials with SOFC components. At the end of this Phase I project, sealing compositions and processes will be identified for SOFC applications identified by NASA. More »

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