Solid oxide fuel cells (SOFC) convert chemical energy from hydrogen, methane, or other hydrocarbons directly into electrical energy and heat. Advantages are low noise during operation as well as relatively low pollutant emissions. This makes them interesting for stationary applications, eg combined heat and power plants for domestic use and for mobile applications, when there is a demand for integrating auxiliary power units. The high operating temperatures of about 850°C and the simultaneous presence by both, reducing and oxidizing atmospheres place high demands on the components of a SOFC. Due to these requirements, glass‐ceramics are proposed as sealants between interconnector and electrolyte. They provide lower costs and lower weight than commercially used silver solders. Furthermore, they have the following impressive benefits: The sealants are electrical insulating, chemical stable and by careful materials selection and adapted manufacturing processes, they adhere well on steel and on ceramic substrates. In order to characterize the adhesion of glass‐ceramic sealants on steel and on zirconia substrates, layer‐like composites are fabricated by screen‐printing and subsequent sintering in air. It turns out that the formation of crystalline phases at the interface is crucial for the adhesion behavior.

中文翻译：

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玻璃陶瓷钎焊陶瓷和钢复合材料的力学研究

固体氧化物燃料电池（SOFC）将来自氢，甲烷或其他碳氢化合物的化学能直接转化为电能和热能。优点是运行过程中噪音低，污染物排放量也相对较低。当需要集成辅助动力装置时，这使它们对于固定式应用（例如家用和移动式热电厂联合使用）很有趣。约850°C的高工作温度以及还原性气氛和氧化性气氛的同时存在对SOFC的组件提出了很高的要求。由于这些要求，建议使用玻璃陶瓷作为互连器和电解质之间的密封剂。与商业使用的银焊料相比，它们具有更低的成本和更低的重量。此外，它们还具有以下令人印象深刻的好处：密封剂是电绝缘的，化学稳定的，通过仔细的材料选择和适当的制造工艺，它们可以很好地粘附在钢和陶瓷基材上。为了表征玻璃陶瓷密封剂在钢和氧化锆基材上的粘附力，通过丝网印刷和随后在空气中烧结来制造层状复合材料。事实证明，在界面处形成结晶相对于粘附行为至关重要。