Rigid-resilient transition in calcium borosilicate sealing glass–ceramics: Effect of preferred orientation

Jiajia Yan, Ruiguo Chen, Baisheng Sa, Dewei Lin, Lihua Hong, Rui Xiong, Yukun Wu, Hande Chen, Hongbin Su, Qingming Huang, Hsiwen Yang, Kongfa Chen*, Teng Zhang

*Kontaktforfatter

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

4 Citationer (Scopus)

Abstract

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.

OriginalsprogEngelsk
TidsskriftJournal of the European Ceramic Society
Vol/bind38
Udgave nummer5
Sider (fra-til)2410-2416
Antal sider7
ISSN0955-2219
DOI
StatusUdgivet - maj 2018
Udgivet eksterntJa

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