摘要:
Improved liners and explosive devices having improved liners are provided. In accordance with an exemplary embodiment, a liner for an explosive device comprises a plate configured to be positioned against an explosive charge. The plate comprises rhenium, palladium, or a combination thereof, at least a bimodal particle size distribution having a powder grain size no greater than 25 microns, a substantially circular diameter, and a substantially concave interior relative to a surface of the explosive charge.
摘要:
Explosive devices, and in particular cluster explosively-formed penetrator warhead devices, are described herein. In accordance with an exemplary embodiment, a spherically-shaped explosive device comprises an initiator, a fuze component system configured to ignite the initiator, and a substantially spherical explosive charge surrounding the initiator. The substantially spherical explosive charge has a substantially spherical surface. A plurality of liners are on the substantially spherical surface of the substantially spherical explosive charge.
摘要:
Insensitive munition-type explosive material and methods for forming insensitive munition-type explosive material are provided. In an exemplary embodiment, an insensitive munition-type explosive material comprises a particle of BNCP and a surfactant-comprising shell that encapsulates the particle of BNCP.
摘要:
Insensitive munition-type explosive material and methods for forming insensitive munition-type explosive material are provided. In an exemplary embodiment, an insensitive munition-type explosive material comprises a particle of BNCP and a surfactant-comprising shell that encapsulates the particle of BNCP.
摘要:
PBX compositions and methods for fabricating PBX compositions are provided. In an exemplary embodiment, a PBX composition comprises a binder matrix comprising a thermoset resin and an oxidizer comprising octanitrocubane (ONC), the oxidizer homogeneously dispersed within the binder matrix. In another embodiment, a method for fabricating a PBX composition comprises providing an oxidizer comprising octanitrocubane (ONC) and blending the oxidizer with a prepolymer that, upon cure, forms a thermoset resin.
摘要:
Explosive devices, and in particular cluster explosively-formed penetrator warhead devices, are described herein. In accordance with an exemplary embodiment, a spherically-shaped explosive device comprises an initiator, a fuze component system configured to ignite the initiator, and a substantially spherical explosive charge surrounding the initiator. The substantially spherical explosive charge has a substantially spherical surface. A plurality of liners are on the substantially spherical surface of the substantially spherical explosive charge.
摘要:
PBX compositions and methods for fabricating PBX compositions are provided. In an exemplary embodiment, a PBX composition comprises a binder matrix comprising a thermoset resin and an oxidizer comprising octanitrocubane (ONC), the oxidizer homogeneously dispersed within the binder matrix. In another embodiment, a method for fabricating a PBX composition comprises providing an oxidizer comprising octanitrocubane (ONC) and blending the oxidizer with a prepolymer that, upon cure, forms a thermoset resin.
摘要:
This invention relates to a gas generator having two or more compartments, each with a separate initiator, with one compartment discharging before another, i.e., the compartments discharge sequentially. Each compartment has the same propellants, but the propellants have different geometries in each compartment, which results in different rates of gas evolution from each compartment. The gas generator has a rapid initial inflation, followed by a more gradual inflation rate in the subsequent stages, improving safety to occupants. One propellant used for the gas generator comprises (1) ammonium nitrate as the oxidizer, (2) a fuel such as CL-20. and (3) a binder such as polycaprolactone. A second propellant comprises by weight approximately 70-95% energetic nitrate fuel, 5-25% energetic polymer binder and 0.1-5% flash suppressant. No hot metal particles (e.g., CuO) are generated in the new systems.
摘要:
This invention relates to a gas generator having two or more compartments, each with a separate initiator, with one compartment discharging before another, i.e., the compartments discharge sequentially. Each compartment has the same propellants, but the propellants have different geometries in each compartment, which results in different rates of gas evolution from each compartment.The new gas generator is designed to reach maximum inflation at the same time as the current, single stage gas generators. However, the new generator has a more rapid initial inflation, followed by a more gradual inflation rate in the subsequent stages, improving safety to occupants.The propellant used in new generator comprises (1) ammonium nitrate as the oxidizer, which is less toxic and corrosive than the currently-used azide, (2) a fuel such as CL-20, and (3) a binder such as polycaprolactone. No hot metal particles (e.g., CuO) are generated in the new system. This means that the complex, expensive filtering system in the current airbag systems is not needed, nor is there a need to use coated airbags.
摘要:
A high-precision pyrotechnic initiator is well adapted for rapid, precise ignition of solid and liquid energetics. A rigid housing, for example formed of an SiC-treated semiconductor substrate material, contains a pyrotechnic. When ignited, the reaction, or explosion, of the pyrotechnic is confined to the housing. The release of energy creates a hot particulate in which the formation of solid byproducts is mitigated or eliminated. The flame is directed through an outlet. In one embodiment, a microcapillary tube may be placed in communication with the outlet, the tube including a primary front vent and secondary side vents, which serve to increase system efficiency and reliability. A dual bridge wire may be provided for improving system reliability. The resulting assembly thereby performs the combined functions of both an igniter and a flash tube and a complete ignition train is provided in a manner that overcomes the limitations of the conventional configurations.