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Journal of Thermal Analysis and Calorimetry

, Volume 105, Issue 1, pp 259–267 | Cite as

Thermal and sensitivity analysis of nano aluminium powder for firework application

  • A. Azhagurajan
  • N. Selvakumar
  • T. L. Thanulingam
Article

Abstract

The performance of the fireworks is governed by the sound level it produces. As per Govt. of India notification, crackers sound level should not exceed 125 dB (AI) or 145 dB(C) pk. In this study, nAl powder was synthesised at different particle sizes of 113, 187 and 218 nm as a fuel. These powders are well mixed with the oxidizer (KNO3) and the igniter (S), and the cake bomb was manufactured with various compositions and checked for their performance. The thermal analysis was performed by DSC and DTA, and the impact sensitivity was analysed for all compositions. The nano-sized chemicals showed high thermal energy content and high sensitivity for various compositions. Further it is observed that the nAl chemical for producing the optimum sound level in the cake bomb has been reduced to 62.5% when compared with μm powder.

Keywords

nAl Firework powders Impact sensitivity Noise level 

Notes

Acknowledgements

The authors are highly thankful to Petroleum and Explosive Safety Organisation, Nagpur and Fireworks Research and Development Centre—Sivakasi, for providing the necessary facilities to manufacture the bomb crackers with suitable proportions of pyrotechnic mixtures and also their valuable helps.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2011

Authors and Affiliations

  • A. Azhagurajan
    • 1
  • N. Selvakumar
    • 1
  • T. L. Thanulingam
    • 2
  1. 1.Department of Mechanical EngineeringMepco Schlenk Engineering CollegeSivakasiIndia
  2. 2.Fireworks Research and Development CenterPetroleum and Explosive Safety OrganisationSivakasiIndia

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