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Education and Outreach

High Temperature Sealing Materials that Self Repairs Raj N. Singh , University of Cincinnati Main Campus, DMR 1147812. Outcome: researcher at University of Cincinnati have created a novel glass material for sealing that self repairs.

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Education and Outreach

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  1. High Temperature Sealing Materials that Self RepairsRaj N. Singh, University of Cincinnati Main Campus, DMR 1147812 Outcome: researcher at University of Cincinnati have created a novel glass material for sealing that self repairs. Impact: The self-repairable sealing materials are expected to improve reliability, efficiency and economic viability of fuel cell technology for energy production. Explanation: Glasses are used for sealing and joining materials in a myriad of technological applications. Glass seals are also needed for new and more efficient energy producing devices such as solid oxide fuel cells (SOFCs) for conservation of limited natural resources and for efficient energy production. The seals for SOFCs function at very high temperatures and are susceptible to cracking in service. The research work is expected to develop a new class of glass and glass-composites that self-repair cracks or damage (see photos) thereby providing long-life and cost-effective solutions to seals for SOFCs. The fundamental science of self-repair is being studied in support of this project. a b c d Photos showing a cracked glass in (a) and progressive self repair ability (b-d) with time at high temperature. Photo in (d) shows complete repair a few minutes.

  2. High Temperature Sealing Materials that Self RepairsRaj N. Singh, University of Cincinnati Main Campus, DMR 1147812 Education and Outreach One graduate student, an undergraduate student and a research associate will be trained on synthesis of self-repairable glasses as seals for SOFC. Publications and presentations of the results are planned at a future MS&T meetings, which are expected to provide opportunities for learning from other researchers in this field, and broaden their professional outlook. Our facility related to SOFCs is toured by prospective high school students and parents of our department on a weekly basis, and by other visitors to college of engineering. A workshop for high school teachers is planned by PI during summer of 2012, which is typically attended by 25 teachers. A demonstration of the self-repairable glass seals is planned for the teachers.

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