Analysis on the Microstructure Characteristics of Steel-Slag Based Ceramics
Analysis on the Microstructure Characteristics of Steel-Slag Based Ceramics
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DOI：
10.4028/www.scientific.net/amr.150-151.133
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发表时间：
2010-10
期刊：
影响因子：
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通讯作者：
H. Bai;Pu Liu;X. Ai;L. Zhao;Qi Tang;S. Zheng
中科院分区：
文献类型：
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作者：
H. Bai;Pu Liu;X. Ai;L. Zhao;Qi Tang;S. Zheng
钢渣是炼钢的副产品，占钢产量的10%~ 13%。它作为资源的利用已在许多领域进行了尝试。例如，它可以用作建筑材料，大多数用于铺路和装饰。然而，目前我国钢渣资源化利用水平仍然较低，寻找一条高效利用钢渣的新途径迫在眉睫。钢渣中含有大量的钙和硅，与粘土中的钙和硅相似，这意味着它可以成为陶瓷烧结的原料之一。本研究开发了钢渣基陶瓷烧结工艺。当钢渣掺量达到36%时，可制得性能优良的陶瓷砖。通过电子探针分析，讨论了陶瓷样品中可能存在的晶相。通过XRD分析，确定了钢渣陶瓷的主要晶相为钙长石、α-石英和磁铁矿。通过增加钢渣在配方中的比例，可以得到斜顽火辉石。加入滑石粉可得到透辉石。这些都是在低温烧结条件下获得性能优良的陶瓷砖的关键因素。
As by-product of steeling making, steel slag accounts for 10% to 13% of steel production. Utilization of it as resource has been tried in many fields. For example, it can be used as building materials, most for paving and backfilling. However, utilization level of steel slag is still low, and to find a novel way to utilize steel slag efficiently is urgent. Steel slag includes much calcium and silicon, similar to those of clay, which means that it can be one of the raw materials for ceramic sintering. In this research, the process of steel-slag based ceramics sintering was developed. The ceramic tiles with excellent performance were obtained, with up to 36% steel slag added. By EPMA, the possible crystal phases that exist in the ceramic samples have been discussed. By XRD analysis, the main crystal phases of steel slag ceramics were identified, which are anorthite, α-quartz and magnetite. The clinoenstatite can be obtained through increasing the proportion of steel slag in the formula. The diopside can be obtained if the talc was added. These are key factors to obtain excellent performance ceramic tiles under low sintering temperature.