Bonding Agents for the Thermite Compositions.
Patent, Filed 10 Jan 89, patented 30 Jul 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
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It is an object of this invention to provide a mixture for use in melting and venting ordnance case sidewalls before the motor propellant grain autoignites in response to a fuel fire. It is a further object of this invention to provide a mixture that has an autoignition temperature above the maximum temperature expected at the motor sidewall during normal operation while assuring proper autoignition and subsequent case sidewall melting and venting before the motor propellant detonates in response to the heat of fuel fires. It is a further object of this invention to provide a simple, low cost mixture for increasing the density, tensile strength and elasticity of pressed thermite pellets. This invention provides an aluminothermic mixture having a predetermined temperature of autoignition lower than the temperature of ignition of the rocket propellant so that it will ignite during aircraft fuel fire while remaining stable during normal operating temperature of the rocket propellant, being very energetic, having high elasticity and tensile strength, and having improved density when pressed into a desired shape.
- Ammunition and Explosives