Abstract
Spodumene-willemite glass ceramics were produced by replacement of Al 2O 3 in lithium aluminium silicate by ZnO. With replacement of Al 2O 3 by ZnO, the batch melting temperature, glass transition temperature ( T g) and crystallization temperature ( T p) all decreased. The main crystalline phases precipitated were eucriptite, β-spodumene and willemite (Zn 2SiO 4). All compositions of glass ceramics showed bulk crystallization. As ZnO content increased, the grain sizes and thermal expansion coefficients increased, while the flexural strength and fracture toughness of the glass-ceramics increased first, and then decreased. The mechanical properties were correlated with crystallization and morphology of glass ceramics.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.