Abstract
Ferronickel slag can be used for refractory material production by sintering it with the addition of sintered magnesia in the microwave field. In this study, the influence of microwave sintering temperature and time on the refractoriness and mechanical properties of refractory material was assessed based on determination of the phase transformations and microstructural evolutions of the materials obtained at different sintering temperatures and time. It was shown that a high-quality refractory material with refractoriness of 1730 ℃ was obtained when the sample was sintered at 1350 ℃ for 20 min. The findings can be used for developing an efficient approach for utilization of ferronickel slag and other related industrial wastes.
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Acknowledgements
This work was partially supported by the National Natural Science Foundation of China under Grants 51774337, 51504297, and 51811530108, the Science and Technology Planning Project of Hunan Province, China, under Grant 2019RS2008, the Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University) Open Fund under Grant SWMES2017-04, the Project of State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials under Grant 17kffk11, and the Fundamental Research Funds for the Central Universities of Central South University under Grants 2018zzts779 and 2018zzts220.
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Tang, H. et al. (2020). Effects of Sintering Temperature and Time on Preparation of Refractory Materials from Ferronickel Slag Under Microwave Irradiation. In: Li, J., et al. Characterization of Minerals, Metals, and Materials 2020. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36628-5_2
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DOI: https://doi.org/10.1007/978-3-030-36628-5_2
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