CHARACTERISATION OF COAL GANGUE AND FABRICATION OF POROUS CERAMIC MATERIALS
| Autor: | Hao Fu, Wenchao Wang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Ceramics-Silikáty, Vol 68, Iss 1, Pp 80-87 (2024) |
| Druh dokumentu: | article |
| ISSN: | 0862-5468 1804-5847 |
| DOI: | 10.13168/cs.2024.0007 |
| Popis: | This study explores a sustainable recycling technique for converting coal gangue, an abundant industrial waste, into high-value porous ceramics, aiming to mitigate environmental hazards while contributing to materials science. By characterising the waste's composition, the research outlines a detailed methodology for ceramic synthesis, which includes calcination, grinding, and sintering at varying temperatures with the incorporation of chemical additives. The findings reveal that a sintering temperature of 1250 °C is optimal for producing ceramics with desirable porosity and strength. Additionally, additives, such as NaOH, KOH, and Ca(OH)₂, are shown to enhance the formation of mullite, gehlenite, and calcium silicate phases, thus improving the mechanical properties of the final product. The study concludes with a successful demonstration of a scalable process for manufacturing porous ceramics from coal gangue, providing a new application for waste utilisation and a new pathway to produce advanced materials with significant industrial applications. |
| Databáze: | Directory of Open Access Journals |
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