Microstructure Characteristics and Possible Phase Evolution of the Coal Gangue-Steel Slag Ceramics Prepared by the Solid-State Reaction Methods  

作　　者：刘文洁 WANG Yang LI Jingtao 李宝让 LIU Wenjie;WANG Yang;LI Jingtao;LI Baorang(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2024年第4期921-930,共10页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Scientific and Technological Innovation Project of Carbon Emission Peak and Carbon Neutrality of Jiangsu Province(No.BE2022028-4)。

摘　　要：Industrial wastes such as steel slag and coal gangue etc.were chosen as raw materials for preparing ceramic via the conventional solid-state reaction method.With steel slag and coal gangue mixed in various mass ratios,from 100%steel slag to 100%coal gangue at 10%intervals,microstructure and possible phase evolution of the coal gangue-steel slag ceramics were investigated using X-ray powder diffraction,scanning electron microscopy,mercury intrusion porosimetry and Archimedes boiling method.The experimental results suggest that the phase compositions of the as-prepared ceramics could be altered with the increased amount of coal gangue in the ceramics.The anorthite-diopside eutectic can be formed in the ceramics with the mass ratios of steel slag to coal gangue arranged from 8:2 to 2:8,which was responsible for the melting of the steel slag-coal gangue ceramics at relatively high temperature.Further investigations on the microstructure suggested that the addition of the proper amount of steel slag in ceramic compositions was conducive to the pore formation and further contributed to an increment in porosity.

关 键 词：steel slag-coal gangue ceramics SYNTHESIS phase evolution microstructure characteristics 

分 类 号：TQ174.1[化学工程—陶瓷工业]