Preparation of Al2O3-SiO2 Composite Powder by Sol–Gel Method

Chun Xiao Zhu; Shao Feng Zhu

doi:10.4028/www.scientific.net/AMR.1053.173

Paper Titles

Experimental Study and Numerical Simulation on Thermal Energy Storage Characteristics of Composite Phase Change Materials in Annular Space of Vertical Double-Pipe Heat Exchanger
p.143

Density Functional Theory Study of Lithium Atom Adsorbing in the Interior and Exterior of a Series of Carbon Nanotubes
p.150

Effect of Different Cooling Rate on the Freezing Behavior of TiB₂/A356 Composite
p.157

Effects of Precursor pH Value and Calcination Temperature on Photocatalytic Properties of Ni-Fe Codoped ZnO Nanoparticles
p.165

Preparation of Al₂O₃-SiO₂ Composite Powder by Sol–Gel Method
p.173

Structural and Acetone Sensing Properties of La-Doped Porous In₂O₃ Nanospheres by Hydrothermal Synthesis
p.177

Synthesis of Porous SnO₂ with Superior Acetone Sensing Properties
p.181

Mechanism towards Fluorescence of CdTe Quantum Dots Quenched by Magnetic Iron Oxide Nanoparticles
p.185

Preparation and Applications of the Expandable Graphite Catalyst with Hierarchically Porous Structure in the Aldol Condensation
p.193

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1053Preparation of Al2O3-SiO2 Composite Powder by...

Preparation of Al₂O₃-SiO₂ Composite Powder by Sol–Gel Method

Abstract:

Al₂O₃-SiO₂ composite powder was prepared by sol-gel method, using TEOS and AlNO₃ as the main raw material .XRD, SEM and the specific surface analyzer were used to characterize the powder. The results showed that powder obtained by calcining xerogel of the molar ratio of SiO₂/Al₂O₃=1:1.5 at 1200°C had high crystallinity and purity , homogeneous distribution and small particle size that was 100-200nm. Its specific surface area decreased with the increase of the calcining temperature. The main phase of xerogel was amorphous silica. After xerogel was calcined at 400°C, 600°C and 800°C respectively, the phase of obtained powder was also amorphous silica. But at 1000°C and 1100°C respectively, small amounts of Al-Si spinel were produced. At 1200°C, the powder was all mullite and Al-Si spinel did not exist completely.

You might also be interested in these eBooks

Current Research on Functional Materials

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 1053)

Pages:

173-176

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1053.173

Citation:

Cite this paper

Online since:

October 2014

Authors:

Chun Xiao Zhu, Shao Feng Zhu

Keywords:

Particle Size, Phase, Sol-Gel Method, Specific Surface Area

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] G. B. Ren: Practical Refractory Material of Al2O3-SiO2 System (the first Edition) (Beijing: Metallurgical Industry Press, China 1988), p.7 (In Chinese).

Google Scholar

[2] H. Z. Zhao, D. J. Ji and Z. X. Lei: Journal of Silicate, Vol. 31 (2003) No. 12, p.1216 (In Chinese).

Google Scholar

[3] Walter Leitner: Nature, Vol. 405 (2000) No. 11, p.129.

Google Scholar

[4] H. Z. Wang, Huizhong Zhao & Huazhi Gu: Journal of Wuhan University of Science and Technology: Natural Science, Vol. 28 (2005) No. 2, p.130 (In Chinese).

Google Scholar

[5] Zhongyang He, H. Z. Zhao and H. Yuan: Journal of Wuhan University of Science and Technology, Vol. 31 (2008) No. 6, p.565 (In Chinese).

Google Scholar

[6] H. P. Ma, B. W. Zhu and J. W. Wang: Bulletin of Silicate, Vol. 29 (2010) No. 4, p.842 (In Chinese).

Google Scholar

[7] T. Tang, X. T. Zhang and Q. T. Zhang: Refractory Material, Vol. 38 (2004) No. 3, p.193 (In Chinese).

Google Scholar

[8] Z. J. Li and Q. S. Zhao: Non-crystalline Solids, Vol. 256(2000), p.189.

Google Scholar

[9] J. S. Lee and S. C. Yu: Mater Sci, Vol. 27 (1992) No. 19, p.5203.

Google Scholar