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Science and Technology of Energetic Materials

Vol.67, No.6 (2006)

Research paper

Study on laser ignition of boron / potassium nitrate in vacuum Study on laser ignition of boron / potassium nitrate in vacuum
Hiroyuki Koizumi, Masakatsu Nakano, Takayoshi Inoue, Masashi Watanabe, Kimiya Komurasaki, and Yoshihiro Arakawa Hiroyuki Koizumi, Masakatsu Nakano, Takayoshi Inoue, Masashi Watanabe, Kimiya Komurasaki, and Yoshihiro Arakawa
p.193-198

Abstract

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

Keywords

Laser ignition, Vacuum, Boron, Potassium nitrate, Diode laser

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