Abstract
Four glasses with nominal compositions of CaMg 0.8Al 0.4Si 1.8O 6, CaMg 0.75Al 0.5Si 1.75O 6, CaMg 0.7Al 0.6Si 1.7O 6, and CaMg 0.65Al 0.7Si 1.65O 6, were successfully obtained by melting in alumina crucibles at 1580 °C for 1 h, aiming at producing glass ceramics based on diopside–Ca-Tschermak. Sintering and crystallization behaviour of the glasses, coupled with calculation of the activation energy of crystallization, were investigated upon heat treatment under different conditions of heating rates (5–40 K/min), temperatures (850–1000 °C), and times (1–300 h). The experimental results showed that there is a threshold of Ca-Tschermak solubility in diopside structure at ca. 30 mol.%, which is technologically important with regard to the production of mono-mineral glass ceramics. The good matching of thermal properties and the strong adherence to yttria stabilized cubic zirconia indicate the investigated glass ceramics for further experimentation as candidates for SOFC sealants.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
