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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i4.70
pages 345-356


Hiroyuki Koizumi
Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 Japan
Masakatsu Nakano
Tokyo Metropolitan College of Aeronautical Engineering, 8-52-1 Minami Senju, Arakawa-ku, Tokyo 116-8523 Japan
Masashi Watanabe
Nichiyu Giken Kogyo Co.,Ltd, 21-2 Matoba-shinmachi, Kawagoe, Saitama 350-1107, Japan
Takayoshi Inoue
University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 133-8656 Japan
Kimiya Komurasaki
University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 133-8656 Japan
Yoshihiro Arakawa
University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 133-8656 Japan


The laser ignition characteristics of boron/potassium nitrate in a vacuum were investigated using a diode laser as an energy source. Ignition probability in the vacuum was experimentally measured. The minimum laser power for ignition was at most 0.4 W. The result was compared with the numerical calculation of the three-dimensional heat conduction with an exothermic reaction. As a result, the calculated threshold power and ignition time agreed well with the experimental results.


  1. Tanaka, S., Hosokawa, R., Tokudome, S., Hori, K., Saito, H., Watanabe, M., and Esashi, M., MEMS-Based Solid Propellant Rocket Array Thruster.

  2. Koizumi, H., Inoue, T., Nakano, M., and Arakawa, Y., Dual Propulsive Mode Microthruster Using a Diode Laser.

  3. Nakano, M., Koizumi, H., Inoue, T., Watanabe, M., and Arakawa, Y., A Laser Ignition Microthruster for Microspacecraft Propulsion.

  4. Takahashi, K., Okada, T., Ikuta, T., Nishiyama, T., and Nagayama, K., Characteristics of DDNP Combustion for MEMS Rocket Application.

  5. Bourne, N.K., On the Laser Ignition and Initiation of Explosives.

  6. Yong, L.D. and Lui, F., Radiative Ignition of Pyrotechnics: Effect of Wavelength on Ignition Threshold.

  7. Zanotti, Ñ and Giuliani, P., Composite Propellant Ignition and Extinction by CO2 Laser at Subatmosheric Pressure.

  8. Opdebeck, F. and Gillard, P., Optimization of Interface Conditions in the Case of Laser Diode Ignition of Pyrotechnic Mixtures.

  9. Opdebeck, F., Gillard, P., and Radenac, E., Influence of Interface Conditions of Laser Diode Ignition of Pyrotechnic Mixtures: Application to the Design of an Ignition Device.

  10. Ahmad, S.R. and Russell, D.A., Studies into Laser Ignition of Unconfined Propellants.

  11. Ding, D., A Study on the Ignition of Boron/Potassium Nitrate Mixture.

  12. Yano, Y., Condensed Phase Reaction of Boron with Potassium Nitrate.

  13. Yano, Y., Burning Rate Characteristics of B/KNO3 Mixture.

  14. Fujii, K., Numerical Methods for Computational Fluid Dynamics.

  15. Kobayashi, M., Maekawa, H., Nakamura, H., and Kondou, Y., Calculation of the Mean Thermal Conductivity of Heterogenious Solid Mixture with the Voronoi-Polyhedron Element Method.

  16. Koizumi, H., Study on Micro Space Propulsion.