Rigid-resilient transition in calcium borosilicate sealing glass–ceramics: Effect of preferred orientation
| Autor: | Lihua Hong, Kongfa Chen, Baisheng Sa, Ruiguo Chen, Hande Chen, Hsi-Wen Yang, Rui Xiong, Teng Zhang, Yan Jiajia, Qingming Huang, Dewei Lin, Yukun Wu, Hongbin Su |
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| Rok vydání: | 2018 |
| Předmět: |
Work (thermodynamics)
Materials science Borosilicate glass Oxide chemistry.chemical_element 02 engineering and technology Calcium 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry visual_art Orientation (geometry) Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Fuel cells Ceramic Composite material 0210 nano-technology Elastic modulus |
| Zdroj: | Journal of the European Ceramic Society. 38:2410-2416 |
| ISSN: | 0955-2219 |
| Popis: | At present, the insufficient thermo-mechanical stability of sealing glass presents a challenge for solid oxide fuel cells (SOFCs). In this work, we report for the first time that a rigid-resilient transition occurs in a calcium borosilicate sealing glass upon heating at 700 °C for different durations. The elastic modulus increases from 28.1–40.0 GPa for 24 h to 92.3–105.1 GPa for 100 h, while the corresponding hardness increases from 2.5–3.1 GPa to 8.1–9.2 GPa. In addition, a possible mechanism for the rigid-resilient transition has been proposed. The reported results provide a new approach to solve the sealing problem of SOFCs. |
| Databáze: | OpenAIRE |
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