Preparation of Mullite by Coating Al(OH)3 on the Surface of Fly Ash

Rui Xu; Hai Yan Du; Shi Hui Li; Xiong Wei Du; Qiang Zheng; Zhi Hong Zuo

doi:10.4028/www.scientific.net/KEM.434-435.85

Paper Titles

Mechanical Property and Ballistic Performance of Silicon Carbide
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Preparation of Porous SiO₂ Ceramics by Gelcasting
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Preparation of Porous Mullite Ceramics by Fly Ash/Al Compositions
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Preparation of Mullite by Coating Al(OH)₃ on the Surface of Fly Ash
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Preparation of Complicated SiC Green Bodies via Aqueous Slip Casting
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Influence of Calcination Time on Pozzolanic Activity of Metakaoline Base on a Novel Evaluation Method
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 434-435Preparation of Mullite by Coating Al(OH)3 on the...

Preparation of Mullite by Coating Al(OH)₃ on the Surface of Fly Ash

Abstract:

Porous mullite were prepared by coating Al(OH)3 on the surface of the particles of waste fly ash. The effects of content of urea on formation of mullite and sintering temperature on microstructure of mullite were investigated by XRD and SEM analysis. It was showed that two kind mullite were obtained, one was growing from original Needle-like mullite existing in original ashfly, and the other was formed through by the reaction between glassy phase and Al2O3 coated on spherical waste fly ash.

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Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

85-87

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.85

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Online since:

March 2010

Authors:

Rui Xu, Hai Yan Du, Shi Hui Li, Xiong Wei Du, Qiang Zheng, Zhi Hong Zuo

Keywords:

Heterogeneous Precipitation, Mullite, Waste Fly Ash

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