Abstract

In order to investigate the structure and performance of specific ceramic materials, red mud, steel slag, and talc, which are commonly used as ceramic building materials, were fabricated by molding. The influences of particle size and composition on the properties of the ceramic materials were studied by differential scanning calorimetry, X-ray diffraction and scanning electron microscopy. The results indicate that the main crystalline phases were diopside and anorthite. The ceramics possessed the best mechanical properties when sintered at about 1170°C, the particle size of the raw material powders was less than 74 μm, and the ceramic composition comprised 60–70% red mud, 20–30% steel slag, and 10% talc. The results of this work are useful for recycling of steel slag and red mud on a large scale.

中文翻译：

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赤泥和钢渣制备瓷砖的新方法

摘要

为了研究特定陶瓷材料的结构和性能，将常用的陶瓷建筑材料赤泥、钢渣和滑石通过模压制成。采用差示扫描量热法、X射线衍射仪和扫描电子显微镜研究了粒径和成分对陶瓷材料性能的影响。结果表明，主要晶相为透辉石和钙长石。陶瓷在 1170 ℃左右烧结时具有最好的力学性能，原料粉末的粒径小于 74 μm，陶瓷成分包括 60-70% 的赤泥、20-30% 的钢渣和 10 % 滑石粉。这项工作的结果对大规模回收钢渣和赤泥很有用。