Chapter 76. Combustion Synthesis of Nanocrystalline Powders in Al2O3-MgO Binary System

  1. J. P. Singh
  1. S. Bhaduri,
  2. E. Zhou and
  3. S. B. Bhaduri

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294444.ch76

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

How to Cite

Bhaduri, S., Zhou, E. and Bhaduri, S. B. (1997) Combustion Synthesis of Nanocrystalline Powders in Al2O3-MgO Binary System, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294444.ch76

Author Information

  1. Department of Metallurgical and Mining Engineering, University of Idaho, Moscow, ID 83844-3024.

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375532

Online ISBN: 9780470294444

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Keywords:

  • characterized;
  • lattice parameters;
  • non-stoichiometric spinel;
  • ductility;
  • nanocrystalline spinels

Summary

Nanocrystalline spinel (or spinel-alumina nanocomposite) powders were synthesized using a “Combustion Synthesis” process. Al-nitrate and Mg-nitrate were used as the starting materials and urea was used as the fuel. The assynthesized powders were characterized by x-ray diffraction (XRD) and transmission electron microscopy (TEM). Grain sizes and lattice parameters were calculated from the XRD results. Lattice parameters of non-stoichiometric spinel solid solutions satisfied the Vegard's law. Spinel grains were about 13-20 nm range and α-alumina were 30-40 nm, as determined by XRD and TEM.