Fracto-emission accompanying adhesive failure between rocket propellent constituents

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Abstract
In past studies, we have shown that fracto-emission (the emission of electrons, ions, photons, and neutral species) is observable during and following the fracture of simulated model propellent composites. In this paper we examine the electron, photon, and radio-frequency emissions from two situations that lead to interfacial or adhesive failure: the fracture of model propellents loaded with cyclotriethylene-trinitramine (RDX), and the peeling of binder material from macroscopic single crystals of RDX. Two binder materials are examined: hydroxy-terminated polybutadiene/isophorone diisocyanate and polyglycidyl azide prepolymer cured with a multifunctional isocyanate.

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