Open Access
ARTICLE
Constructing Straight Pores and Improving Mechanical Properties of Gangue-Based Porous Ceramics
Hang Xu, Huiling Du*, Le Kang, Qiudi Cheng, Danni Feng, Siyu Xia
School of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an, 710054, China
* Corresponding Author: Huiling Du. Email:
(This article belongs to the Special Issue: New Trends in Sustainable Materials for Energy Conversion, CO2 Capture and Pollution Control)
Journal of Renewable Materials 2021, 9(12), 2129-2141. https://doi.org/10.32604/jrm.2021.016090
Received 05 February 2021; Accepted 23 March 2021; Issue published 22 June 2021
Abstract
The large-scale accumulation and pollution of solid mining waste is an urgent issue. Coal gangue is a prominent
type of solid waste, and shows promise for use in high value-added products due to its content of many important
compounds, including SiO
2 and Al
2O
3. This study proposed the preparation of highly porous ceramics from coal
gangue, coal slime, and coconut palm fibers. The ceramics were produced at a sintering temperature of 950°C
with a fiber content of 6 wt%, which led to the formation of porous ceramics with a porosity of 66.93%, volume
density of 1.0329 g/cm3
, compressive strength of 1.1025 MPa, and thermal conductivity is 0.3919 K(W/mk). A
finite element model of the porous ceramics was established using the Abaqus module in ANSYS software, where
the stress distribution and compressive strength were simulated. Further, the relationship between porosity and
compressive strength was analyzed. The thermal properties of the porous ceramics were analyzed using the Fluent
module, where the simulated changes in porosity under various sintering temperatures were consistent with the
experimental data. The preparation of this highly porous ceramic from solid waste coal gangue shows promise for
the minimizing the impact of waste gas and wastewater pollution in the future.
Graphical Abstract
Keywords
Cite This Article
Xu, H., Du, H., Kang, L., Cheng, Q., Feng, D. et al. (2021). Constructing Straight Pores and Improving Mechanical Properties of Gangue-Based Porous Ceramics.
Journal of Renewable Materials, 9(12), 2129–2141. https://doi.org/10.32604/jrm.2021.016090
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