Fracture toughness and hardness of transparent MgO–Al2O3–SiO2 glass-ceramics
نویسندگان
چکیده
Hard and strong transparent glass-ceramics (TGCs) can be used as cooktop plates, telescope mirrors, armor materials, screens for smartphones tablets. In this work, from the MgO–Al2O3–SiO2 (MAS) system were obtained after a refined heat-treatment protocol. The evolution in fracture toughness, KIC (Single Edge Precracked Beam), Vickers hardness (HV) characterized function of crystallization progress. parent glass was 0.6 MPa m1/2, whereas TGC samples present values around 1.1 m1/2. average 8.5 ± 0.8 GPa loads 0.6–5 N, HV varied 9 to 10 GPa, indentation ranging 4.9 9.8 N. These results are discussed light our previous findings on elastic modulus same glass-ceramics.
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ژورنال
عنوان ژورنال: Ceramics International
سال: 2022
ISSN: ['0272-8842', '1873-3956']
DOI: https://doi.org/10.1016/j.ceramint.2021.12.195