Hong-shun Hao, Yang Yang, Fang Lian, Wen-yuan Gao, Gui-shan Liu, and Zhi-qiang Hu, Synthesis and performance of Ca-α/β-SiAlON composites from tailings, Int. J. Miner. Metall. Mater., 21(2014), No. 5, pp. 515-522. https://doi.org/10.1007/s12613-014-0937-2
Cite this article as:
Hong-shun Hao, Yang Yang, Fang Lian, Wen-yuan Gao, Gui-shan Liu, and Zhi-qiang Hu, Synthesis and performance of Ca-α/β-SiAlON composites from tailings, Int. J. Miner. Metall. Mater., 21(2014), No. 5, pp. 515-522. https://doi.org/10.1007/s12613-014-0937-2
Hong-shun Hao, Yang Yang, Fang Lian, Wen-yuan Gao, Gui-shan Liu, and Zhi-qiang Hu, Synthesis and performance of Ca-α/β-SiAlON composites from tailings, Int. J. Miner. Metall. Mater., 21(2014), No. 5, pp. 515-522. https://doi.org/10.1007/s12613-014-0937-2
Citation:
Hong-shun Hao, Yang Yang, Fang Lian, Wen-yuan Gao, Gui-shan Liu, and Zhi-qiang Hu, Synthesis and performance of Ca-α/β-SiAlON composites from tailings, Int. J. Miner. Metall. Mater., 21(2014), No. 5, pp. 515-522. https://doi.org/10.1007/s12613-014-0937-2
Ca-α/β-SiAlON composites were prepared using Ca-α/β-SiAlON powder synthesized from gold ore tailings, which contained abundant Si and Al elements as the major raw materials together with minor additives, through a pressure-less sintering method. The influences of sintering temperature on the phase composition and microstructure of the composites were analyzed. The scanning electron microscopy images of the composites show the interlacing of grains with elongated columnar, short columnar and plate-like morphologies. The composites sintered at 1520℃ for 6 h have a flexural strength of 352 MPa, Vickers hardness of 11.2 GPa, and fracture toughness of 4.8 MPa·m1/2. The relative content of each phase in the products is I(Ca-α-SiAlON):I(β-SiAlON):I(Fe3Si) = 23:74:3, where Ii stands for the diffraction peak intensity of phase i.
Ca-α/β-SiAlON composites were prepared using Ca-α/β-SiAlON powder synthesized from gold ore tailings, which contained abundant Si and Al elements as the major raw materials together with minor additives, through a pressure-less sintering method. The influences of sintering temperature on the phase composition and microstructure of the composites were analyzed. The scanning electron microscopy images of the composites show the interlacing of grains with elongated columnar, short columnar and plate-like morphologies. The composites sintered at 1520℃ for 6 h have a flexural strength of 352 MPa, Vickers hardness of 11.2 GPa, and fracture toughness of 4.8 MPa·m1/2. The relative content of each phase in the products is I(Ca-α-SiAlON):I(β-SiAlON):I(Fe3Si) = 23:74:3, where Ii stands for the diffraction peak intensity of phase i.
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