Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5440715 | Journal of the European Ceramic Society | 2017 | 10 Pages |
Abstract
We focus on fly ashes of different sizes and their alkali-activation on ceramic products. Backscattered electron imaging-energy dispersive X-ray spectroscopy was used to classify coal fly ash particles according to particle size and to study the pre-activation of particles with different sizes. Secondary electron imaging-energy dispersive X-ray spectroscopy was used to study the role of coal fly ash particles of different sizes in ceramic bodies before and after alkali-activation. Ash particles can be divided into three classes based on size: clay-, quartz- and feldspar-like particles, which act as clay, quartz and feldspar, respectively, in ceramic bodies. The pre-activation process contributes to the plasticity of ash particles, the crystal skeleton role of clay-like particles and the fluxing agent role of feldspar-like particles, so preprocessing can improve the performance of ash-based ceramic tiles significantly. This research provides a new pretreatment method for coal fly ash in ceramic fields.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Yang Luo, Shuhua Ma, Chunli Liu, Zhenqing Zhao, Shili Zheng, Xiaohui Wang,