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

Wen Ge Li

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

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 79-82Synthesis and Characterization of α-Al2O3...

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

Abstract:

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.

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Periodical:

Advanced Materials Research (Volumes 79-82)

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569-572

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.79-82.569

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Online since:

August 2009

Authors:

Wen Ge Li

Keywords:

Gel Combustion, Low Temperature Combustion Synthesis, Nanocrystalline, α -Al₂O₃

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