Explosive device comprising an explosive material having controlled explosive properties
| DWPI Title: Explosive device used in various commercial and defense applications, comprises portion of explosive train that comprises initiator, booster charge, and main charge, explosive material is deposited on surface of substrate in vacuum chamber by way of physical vapor deposition |
| Abstract: An explosive device is described herein, wherein the explosive device includes a substrate that has a surface, wherein surface energy of a portion of the surface of the substrate has been modified in a vacuum chamber from a first surface energy to a second surface energy. The explosive device additionally includes explosive material that has been deposited on the surface of the substrate in the vacuum chamber by way of physical vapor deposition (PVD), wherein the explosive material is deposited on the portion of the surface of the substrate subsequent to the surface energy of the portion of the surface of the substrate being modified from the first surface energy to the second surface energy. |
| Use: Explosive device used in various commercial and defense applications. |
| Advantage: The explosive device controls properties of explosive (energetic) material, such properties include density of the explosive material and/or porosity of the explosive material, controls detonation velocity, detonation wave shape, and other explosive properties, has improved mild detonating fuse and improved sensitivity. The initiator reduces complexity, reduces size, and improves safety compared to conventional initiators. |
| Novelty: Explosive device (100) comprises a substrate (102) that has a surface (104). The explosive material (106) is deposited on the surface of the substrate in the vacuum chamber by way of physical vapor deposition (PVD). The explosive material is deposited on the portion of the surface of the substrate subsequent to the surface energy of the portion of the surface of the substrate being modified from the first surface energy to the second surface energy, where density of the explosive material deposited on the portion of the surface of the substrate and porosity of the explosive material deposited on the portion of the surface of the substrate is a function of the second surface energy. The explosive device being a portion of an explosive train that comprises an initiator, a booster charge, and a main charge. |
| Filed: 11/12/2018 |
| Application Number: US16186946A |
| Tech ID: SD 14090.2 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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