Effect of La2O3 adding on Properties of SiC Porous Ceramic Support

In this paper, 80-90 grains of SiC as the main raw material, doped La2O3 into the binder composed of potassium feldspar, kaolinite and quartz, and then graphite and activated carbon as pore-making agents to prepare silicon carbide porous ceramic carrier. The effects of doped La2O3 content on the ben...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-02, Vol.2706 (1), p.012034
Main Authors: Qiu, Shuang, Xue, RiDong, Dai, Xinchao, Wu, Chengjun, Deng, Xiangyun
Format: Article
Language:English
Subjects:
Activated carbon
Activated clay
Bend strength
binder
Ceramics
Filtration
Kaolinite
Lanthanum oxides
Mullite
Porosity
porous ceramics
Pressure drop
Raw materials
SiC
Silicon carbide
Sintering (powder metallurgy)
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Summary:In this paper, 80-90 grains of SiC as the main raw material, doped La2O3 into the binder composed of potassium feldspar, kaolinite and quartz, and then graphite and activated carbon as pore-making agents to prepare silicon carbide porous ceramic carrier. The effects of doped La2O3 content on the bending strength, porosity and filtration pressure drop of porous SiC ceramics were studied. The results show that the formation of mullite phase and the bending strength of SiC porous ceramics can be improved by adding proper amount of La2O3. Under the sintering temperature of 1300°C for 90 minutes, when the content of La2O3 in the binder is 2.5wt%, the comprehensive performance is the best, the porosity is 21.5%, the bending strength is 53.5MPa, and the filtration pressure drop is low.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2706/1/012034