Science and Technology of Energetic Materials

Vol.70, No.1 (2009)

Research paper

Reaction wave propagation phenomena of tri- n -butyl phosphate and fuming nitric acid (TBP / FNA) mixture by shock loading
Tomoharu Matsumura, Koki Ishikawa, Tomotaka Homae, Kunihiko Wakabayashi,
and Yoshio Nakayama


In this article, the results of measuring the reaction wave propagation velocities of a tri-n-butyl phosphate (TBP) and fuming nitric acid (FNA) mixture by optical and electrical methods are reported, in order to examine the difference in the reaction by incident shock pressure. The TBP / FNA mixture was found to explode by different mechanisms with the strength of incident shock pressure. That is, under strong incident shock pressure, the reaction propagates in the state of C-J detonation from the beginning, and under weak incident shock pressure which does not result in direct explosion, the low-velocity reaction wave propagates inside the sample for a certain amount of time, and the phenomenon is transferred to the C-J detonation state after that.

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Detonation, Tri-n-butyl phosphate, Fuming nitric acid, Velocity measurement.

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