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Synthesis of AlN nanowhiskers

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Abstract

The synthesis of hexagonal aluminum nitride (AlN) nanoparticles and nanowhiskers by using direct nitridation of aluminum powders is presented in this work. After mixing aluminum powders with carbon and silica (derived from rice bran ashes) at a cryogenic temperature, the homogeneous mixture was heat treated/examined in a differential scanning calorimeter/tube furnace under N2 atmosphere. Under a maximum temperature of 1450 °C in N2 atmosphere, the as-milled aluminum-carbon-silica powder mixtures transformed completely into AlN nanoparticles and nanowhiskers with a trace of graphite. The formation mechanisms for AlN nanoparticles and nanowhiskers are discussed.

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Authors and Affiliations

  1. CFAW-Ceramics LLC, Baton Rouge, Louisiana, 70820, USA

    K. Y. Wang

  2. Department of Mechanical Engineering, Louisiana State University, Baton Rouge, Louisiana, 70803, USA

    P. G. Zhang & S. M. Guo

  3. Department of Chemical Materials and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut, 06269, USA

    L. C. Zhang

Authors
  1. K. Y. Wang
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  2. P. G. Zhang
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  3. L. C. Zhang
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  4. S. M. Guo
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Correspondence to S. M. Guo.

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Wang, K.Y., Zhang, P.G., Zhang, L.C. et al. Synthesis of AlN nanowhiskers. Journal of Materials Research 25, 1771–1777 (2010). https://doi.org/10.1557/JMR.2010.0240

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  • DOI: https://doi.org/10.1557/JMR.2010.0240

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