Shear Performance at Room and High Temperatures of Glass–Ceramic Sealants for Solid Oxide Electrolysis Cell Technology

0504330 - ÚFM 2020 RIV CH eng J - Článek v odborném periodiku
Javed, H. - Sabato, A. G. - Dlouhý, Ivo - Halasová, Martina - Bernardo, E. - Salvo, M. - Herbrig, K. - Walter, Ch. - Smeacetto, F.
Shear Performance at Room and High Temperatures of Glass–Ceramic Sealants for Solid Oxide Electrolysis Cell Technology.
Materials. Roč. 12, č. 2 (2019), č. článku 298. E-ISSN 1996-1944
GRANT EU: European Commission 700300 - GrInHy; European Commission(XE) 642557 - CoACH
Institucionální podpora: RVO:68081723
Klíčová slova: glass–ceramic * shear strength * elastic modulus * SOFC * SOEC
Obor OECD: Ceramics
Impakt faktor: 3.057, rok: 2019
Způsob publikování: Open access
https://www.mdpi.com/1996-1944/12/2/298/htm

To provide a reliable integration of components within a solid oxide electrolysis cell stack, it is fundamental to evaluate the mechanical properties of the glass–ceramic sealing materials, as well as the stability of the metal–glass–ceramic interface. In this work, the mechanical behavior of two previously developed glass–ceramic sealants joined to Crofer22APU steel is investigated at room temperature, 650 °C, and 850 °C under shear load. The mechanical properties of both the glass–ceramics showed temperature dependence. The shear strength of Crofer22APU/glass–ceramic/Crofer22APU joints ranged from 14.1 MPa (20 °C) to 1.8 MPa (850 °C). The elastic modulus of both glass–ceramics also reduced with temperature. The volume fraction of the crystalline phases in the glass–ceramics was the key factor for controlling the mechanical properties and fracture, especially above the glass-transition temperature.
Trvalý link: http://hdl.handle.net/11104/0296051