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首页> 外文期刊>Journal of Materials Engineering and Performance >High-Temperature Seals for Solid Oxide Fuel Cells (SOFC)
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High-Temperature Seals for Solid Oxide Fuel Cells (SOFC)

机译：固体氧化物燃料电池（SOFC）的高温密封

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摘要

A functioning solid oxide fuel-cell (SOFC) may require all types of seals, such as metal-metal, metal-ceramic, and ceramic-ceramic. These seals must function at high temperatures between 600 and 900 deg C and in the oxidizing and reducing environments of fuels and air. Among the different types of seals, the metal-metal seals can be readily fabricated using metal joining, soldering, and brazing techniques. However, metal-ceramic and ceramic-ceramic seals require significant research and development because the brittle nature of ceramics/glasses can lead to fracture and loss of seal integrity and functionality. Consequently, any seals involving ceramics/glasses also require significant attention and technology development for reliable SOFC operation. This paper is prepared to primarily address the needs and possible approaches for high-temperature seals for SOFC and seals fabricated using some of these approaches. A new concept of self-healing glass seals is proposed for making seals among material combinations with a significant expansion mismatches.
机译：运行正常的固体氧化物燃料电池（SOFC）可能需要所有类型的密封，例如金属-金属，金属陶瓷和陶瓷陶瓷。这些密封件必须在600到900摄氏度之间的高温下以及在燃料和空气的氧化还原环境中起作用。在不同类型的密封件中，金属-金属密封件可以使用金属连接，焊接和铜焊技术轻松制造。然而，金属陶瓷和陶瓷陶瓷密封件需要大量的研究和开发，因为陶瓷/玻璃的脆性会导致破裂以及密封件完整性和功能性的丧失。因此，任何涉及陶瓷/玻璃的密封件也需要大量关注和技术开发，以确保SOFC的可靠运行。本文旨在主要解决SOFC高温密封件以及使用其中一些方法制造的密封件的需求和可能的方法。提出了一种自愈玻璃密封件的新概念，用于在具有明显膨胀失配的材料组合之间制造密封件。

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