Advertisement

The effect of slow heating rates on the reaction mechanisms of nano and micron composite thermite reactions

  • Michelle L. Pantoya
  • J. J. Granier
Article

Abstract

Thermal analyses were performed on Al+MoO3 thermite reactions as a function of Al particle size (ranging from 50 to 20 μm) and heating rate (from 2.5 to 15 K min–1 ). Results include ignition (onset) temperatures and heats of reaction. The nano-thermites initiate prior to reactant phase changes and at least 300°C below micron-thermites. The differences in ignition temperatures are suggestive of different ignition mechanisms. Nano-thermites display higher heats of reaction that are dependent on experimental conditions.

Keywords

heat of reaction ignition temperature nano-aluminum nanocomposite thermites 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Pantoya, ML, Granier, JJ 2005Prop. Expl. Pyro.301CrossRefGoogle Scholar
  2. 2.
    Granier, JJ, Pantoya, ML 2004Comb. Flame138373CrossRefGoogle Scholar
  3. 3.
    Bockmon, BS, Pantoya, ML, Son, SF, Asay, BW, Mang, JT 2005J. Appl. Phys.98064903CrossRefGoogle Scholar
  4. 4.
    J. Sun, M. L. Pantoya and S. L. Simon, Thermochim. Acta, (2006) in press.Google Scholar
  5. 5.
    Shufeng, W, Hyunung, Y, Yangiang, Y, Dlott, DD 2005Prop. Expl. Pyro.30148CrossRefGoogle Scholar
  6. 6.
    Rai, A, Lee, S, Park, K, Zachariah, MR 2004J. Phys. Chem. B10814793CrossRefGoogle Scholar
  7. 7.
    Lide, DR 1998–1999.CRC Handbook of Chemistry and Physics79thCRC Press IncUSAGoogle Scholar
  8. 8.
    Mallinckrodt Chemicals, J. T. Baker Molybdenum Trioxide MSDS, Mallinckrodt Baker, Inc. website retrieved Jan. 10, 2005.Google Scholar
  9. 9.
    Feng, HJ, Moore, JJ, Wirth, DG 1998Proc. of the Symp. on Developments in Ceramic and Metal Matrix Composites, TMS Annual MeetingTMSSan Diego, CA219Google Scholar
  10. 10.
    Granier, JJ, Plantier, KB, Pantoya, KB, Pantoya, ML 2004J. Mater. Sci.396421CrossRefGoogle Scholar
  11. 11.
    Trunov, MA, Mirko, S, Xiaoying, Z, Dreizin, EL 2005Comb. Flame140310CrossRefGoogle Scholar
  12. 12.
    S. H. Fischer and M. C. Grubelich, Proc. of the 24th Int. Pyrotechnics Seminar, 1998.Google Scholar
  13. 13.
    Shimizu, K, Furneaux, RC, Thompson, GE, Wood, GC, Gotoh, A, Kobayashi, K 1991Oxid. Met.35427CrossRefGoogle Scholar
  14. 14.
    Suvaci, E, Simkovich, G, Messing, GL 2000J. Am. Ceram. Soc.83299CrossRefGoogle Scholar
  15. 15.
    M. A. Trunov, M. Schoenitz and E. L. Dreizin, Int. Workshop on Comb. and Prop., Novel Energetic Materials and Applications, Lerici, La Spezia, Italy (Sept. 2003).Google Scholar

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringTexas Tech UniversityLubbock, TexasUSA

Personalised recommendations