Synthesis of AlN Particles by Microwave-Assisted Urea Route

Jong Bin Ahn; Dong Soo Kim; Young Kook Kim; Jung Goo Lee

doi:10.4028/www.scientific.net/AMM.851.191

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 851Synthesis of AlN Particles by Microwave-Assisted...

Synthesis of AlN Particles by Microwave-Assisted Urea Route

Abstract:

Novel simple route to prepare AlN nanoparticles was proposed in this study. Aluminum nitride powder was synthesized by microwave-assisted urea route. Aluminum chloride was dissolved in ethanol and urea was added to this solution considering molar concentration with Aluminum chloride. The solution was heated under microwave (MW) irradiation from 60°C to 80°C for 5-10 minutes. And then heat treatment was performed in N₂ atmosphere with various temperatures and time to obtain AlN particles. While microwave was irradiated to the mixed solution with Aluminum chloride, urea and ethanol, the solvent was eliminated and polymerization reaction was accelerated to formmetal-organic complex. AlN particles were successfully synthesized after heat treatment above 1600°C under N₂ or N₂-H₂ mixed gas atmosphere in the molar ratio (urea/Aluminum chloride) of 6.

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Periodical:

Applied Mechanics and Materials (Volume 851)

Pages:

191-195

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.851.191

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Online since:

August 2016

Authors:

Jong Bin Ahn, Dong Soo Kim*, Young Kook Kim, Jung Goo Lee

Keywords:

Aluminum Nitride (AlN), Microwave Irradiation, Nitriding, Thermal Interface Material

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