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Shuai Zhang, Yanling Zhang, and Shaowen Wu, Effects of ZnO, FeO, and Fe2O3 on the spinel formation, microstructure and physicochemical properties of augite-based glass ceramics, Int. J. Miner. Metall. Mater.,(2022). https://doi.org/10.1007/s12613-022-2489-1
Cite this article as:
Shuai Zhang, Yanling Zhang, and Shaowen Wu, Effects of ZnO, FeO, and Fe2O3 on the spinel formation, microstructure and physicochemical properties of augite-based glass ceramics, Int. J. Miner. Metall. Mater.,(2022). https://doi.org/10.1007/s12613-022-2489-1
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  • Research Article

    Effects of ZnO, FeO, and Fe2O3 on the spinel formation, microstructure and physicochemical properties of augite-based glass ceramics

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    • Augite-based glass ceramics were synthesised using ZnO, FeO, and Fe2O3 as additives, and the formation of spinel, matrix structure, crystallisation thermodynamics and physicochemical properties were investigated. The results showed that oxides result in numerous preliminary spinels in the glass matrix. FeO, ZnO and Fe2O3 influence the formation of spinel, while FeO simplifies the glass network. FeO and ZnO promote bulk crystallisation of the parent glass. After adding oxides, the grains of augite phase were refined, and the relative quantities of augite crystal planes were also influenced. All samples displayed good mechanical properties and chemical stability. The 2wt% ZnO-doping sample displayed the maximum flexural strength (170.3 MPa). Chromium leaching amount values of all the samples were less than the national standard (1.5 mg/L), confirming the safety of the materials. In conclusion, an appropriate amount of zinc-containing raw material is beneficial for the preparation of augite-based glass ceramics.

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