Premium
Phase composition, microstructure, and properties of ceramic tile prepared using ceramic polishing waste as raw material
Author(s) -
Wang Chao,
Wang Shaohua,
Li Xiaonv,
Liu Yewei,
Zhang Xiaozhen,
Chang Qibing,
Wang Yongqing
Publication year - 2021
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13711
Subject(s) - materials science , microstructure , ceramic , tile , polishing , mullite , sintering , raw material , composite material , phase (matter) , porosity , metallurgy , chemistry , organic chemistry
Polished ceramic products are currently the most popular in architectural decoration, but a significant amount of ceramic polishing waste (CPW) is produced during the preparation process. Determining how to handle the CPW is a pressing task for enterprises. This work investigated the feasibility of recycling CPW in porcelain tile, and its influence on the phase composition, microstructure, and properties of the ceramic body. The CPW was found to have a similar composition to the traditional ceramics and worked as a flux. The SiC within CPW began to decompose into SiO 2 with CO 2 generation at about 1100°C, resulting in a porous structure. Microstructure observation indicated that a high CPW sample produced sufficient liquid phase when fired at temperatures ≤1100°C, which was not only beneficial for mullite growth but also for matrix densification by the viscous flow mechanism. But a high‐content CPW caused the body to foam or even expand at temperatures >1100°C, thus significantly reducing mechanical properties. Finally, a series of porcelain tiles were successfully prepared with a CPW content of ≤30 wt% at a firing temperature of 1125‐1200°C. The results of this study are considered to be valuable for the utilization of CPW.