| Issue |
E3S Web Conf.
Volume 290, 2021
2021 3rd International Conference on Geoscience and Environmental Chemistry (ICGEC 2021)
|
|
|---|---|---|
| Article Number | 01016 | |
| Number of page(s) | 4 | |
| Section | Environmental Chemistry and Chemical Technology Application | |
| DOI | https://doi.org/10.1051/e3sconf/202129001016 | |
| Published online | 14 July 2021 | |
Preparation and characterization of coal gangue/Al cermet materials
School of Mechanical Engineering, North University of China, Taiyuan, Shanxi
a Corresponding author:guihuawu_nuc@163.com
In this study, the calcined coal gangue was mixed with Al powder at different mass fractions (5wt%〜35wt%). After being pressed at 80MPa and sintered at 1200°C for 2h, the coal gangue/Al cermet material was obtained. The phase composition, microstructure and mechanical properties of the material were studied. The results show that the main components of the prepared materials are Al, mullite, AlN, alumina and silicon. With the increase of coal gangue powder, the hardness of coal gangue/Al cermet gradually increases, while the static compression strength first increases and then decreases. When the mass fraction of gangue is 25wt%, the coal gangue/Al cermet material has the best performance. Density is 2.23g/cm3, hardness is 752HV, static compression strength is 127.3MPa.
© The Authors, published by EDP Sciences, 2021
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