A Novel Fabrication Approach for Ceramic Tiles
from Red Mud and Steel Slag
Haitao Liua, b, c, Hengyao Dangd, and Wei Wanga, b, c, *
a College of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023 China
b Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials
and Advanced Processing Technology, Luoyang, 471023 China
c Henan Key Laboratory of Non-ferrous Materials Science and Processing Technology, Luoyang, 471023 China
d Luoyang Ship Material Research Institute, Luoyang, 471023 China
Correspondence to: *e-mail: wwlyzwkj_003@163.com
Received 26 November, 2021
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.
Keywords: ceramics, solid waste, microstructure and properties, particle size
DOI: 10.3103/S1067821222040083