Synthesis and Characterization of α-Al2O3 Nanocrystalline Powders by Low Temperature Combustion Method

Abstract:

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Nanocrystalline α-Al2O3 powders were synthesized by low temperature combustion technique using aluminum nitrate-urea reactive system. The relationship between the color of powders and the mass ratio of aluminum nitrate-to-urea was investigated. X-ray results showed presence of the well-crystallized α-Al2O3 after calcined at 1100oC for 2h with 2.5:1 mass ratio. The grain size of α-Al2O3 powders was calculated by Scherrer equation. TEM observation and Clouter N4 Plus measurement results showed that the particle size distributed from 20 nm to 70 nm.

Info:

Periodical:

Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang

Pages:

569-572

DOI:

10.4028/www.scientific.net/AMR.79-82.569

Citation:

W. G. Li "Synthesis and Characterization of α-Al2O3 Nanocrystalline Powders by Low Temperature Combustion Method", Advanced Materials Research, Vols. 79-82, pp. 569-572, 2009

Online since:

August 2009

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$35.00

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