B303 EXPERIMENTAL STUDY ON THE DIRECT PREPARATION OF GLASS-CERAMIC FROM THE SLAG OF BLAST-FURNACE(Combustion-9)

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概要

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• The slag of blast-furnace produced by Kunming Iron and Steel corporation in Yunan province was used as raw materials together with mineral materials such as quartz, feldspar, fluorite, dolomite, calcite and other chemical reagents such as sodium hexametaphosphate and Cr_2O_3, to prepare glass-ceramics by melting method. The major crystalline of the glass-ceramics was Diopsid (CaSiO_3) and diopside (Ca-Mg(SiO_3)_2) ranules of which are thin small, are close and e evenly distribute; XRD together with SEM was used to characterize the phase composition and microstructure of the glass-ceramics, and some other physical properties of this material were also examined. The effect of nucleation agent, heat-treatment parameters and the content of the blast slag in raw material were discussed. The properties of the glass-ceramics can also be promoted by optimizing the heat-treatment parameters. The optimal heat-treatment parameters in this paper are: annealed at 600℃, nucleated at 840℃ for 1h, then crystallized at 910℃ for 1h. The proper rate for heating is: 5-10℃/min before 840℃, 3-5℃/min between 840℃ and 910℃. Correlative testing results of glass-ceramic made of the high temperature molten slag of blast-furnace reveals that the radioactivity is low and in line with GB; the average Micro-hardness is about 764 kg・mm^2, the average compressive strength is about 587 MPa, average flexural strength is about 46.9 MPa, and corrosion resistance is much higher than marble's and granite's.

• 一般社団法人日本機械学会の論文
• 2009-11-16

著者

• ZHANG Zhuming

  Faculty of Materials and Metallurgy Engineering, Kunming University of Science and Technology

• QING Shan

  Faculty of Materials and Metallurgy Engineering, Kunming University of Science and Technology

• MA Linzhuan

  Faculty of Materials and Metallurgy Engineering, Kunming University of Science and Technology

• HUANG Xiaoyan

  Faculty of Materials and Metallurgy Engineering, Kunming University of Science and Technology

• HE Ping

  Faculty of Materials and Metallurgy Engineering, Kunming University of Science and Technology

• He Ping

  Faculty Of Materials And Metallurgy Engineering Kunming University Of Science And Technology

• Qing Shan

  Faculty Of Materials And Metallurgy Engineering Kunming University Of Science And Technology

• Ma Linzhuan

  Faculty Of Materials And Metallurgy Engineering Kunming University Of Science And Technology

• Huang Xiaoyan

  Faculty Of Materials And Metallurgy Engineering Kunming University Of Science And Technology

• Zhang Zhuming

  Faculty Of Materials And Metallurgy Engineering Kunming University Of Science And Technology

関連論文

• B303 EXPERIMENTAL STUDY ON THE DIRECT PREPARATION OF GLASS-CERAMIC FROM THE SLAG OF BLAST-FURNACE(Combustion-9)
• D307 STUDY ON THE INFLUENCE FACTORS BETWEEN NOVEL REDUCER AND PHOSHPOGYPSUM(Environment Protection-5)

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