초록 ▼

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

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.

대표청구항 ▼

1. A liner for a warhead, the liner comprising: a first plate configured to be positioned against an explosive charge of the warhead, a second plate coupled to the first plate, and an explosive disposed between the first plate and the second plate,the first plate comprising: rhenium, palladium, or a

1. A liner for a warhead, the liner comprising: a first plate configured to be positioned against an explosive charge of the warhead, a second plate coupled to the first plate, and an explosive disposed between the first plate and the second plate,the first plate comprising: rhenium, palladium, or a combination thereof;the first plate being formed of material having at least a bimodal particle size distribution and having a powder grain size no greater than 25 microns;a substantially circular diameter; anda substantially concave interior relative to a surface of the explosive charge the second plate comprising rhenium, palladium, or a combination thereof. 2. The liner of claim 1, wherein the first plate has a thickness in the range of about 3% to about 5% of a diameter of the explosive charge. 3. The liner of claim 1, wherein the first plate comprise at least 99% pure rhenium. 4. The liner of claim 1, wherein the first plate comprises at least 99% pure palladium. 5. The liner of claim 1, wherein the first plate comprises a combination of palladium and rhenium in a ratio of about 3 to about 97 wt.% palladium: about 97 to about 3 wt.% rhenium. 6. The liner of claim 1, wherein the first plate further comprises a metal selected from the group consisting of copper, tantalum, steel, and tungsten. 7. The liner of claim 1, wherein the first plate comprises a multimodal particle size distribution. 8. The liner of claim 1, wherein about 25% of particles of the first plate have a grain size in the range of about 100 to about 300 nm and about 75% of particles of the first plate have a grain size in the range of about 20 to about 75 nm. 9. The liner of claim 1, wherein the liner has a thickness is in the range of about 7 to about 25% of a diameter of the explosive charge. 10. The liner of claim 1, further comprising a thermal shield interposed between the first plate and the explosive. 11. A liner for a warhead, the liner comprising a first plate configured to be positioned against an explosive charge of the warhead, the first plate comprising: a combination of palladium and rhenium in a ratio of about 3 to about 97 wt.% palladium: about 97 to about 3 wt.% rhenium;the first plate being formed of material having at least a bimodal particle size distribution and having a powder grain size no greater than 25 microns;a substantially circular diameter; anda substantially concave interior relative to a surface of the explosive charge. 12. A liner for a warhead, the liner comprising a first plate configured to be positioned against an explosive charge of the warhead, the first plate comprising: rhenium, palladium, or a combination thereof;the first plate being formed of material having at least a bimodal particle size distribution and having a powder grain size no greater than 25 microns, about 25% of particles of the first plate having a grain size in the range of about 100 to about 300 nm and about 75% of particles of the first plate having a grain size in the range of about 20 to about 75 nm;a substantially circular diameter; anda substantially concave interior relative to a surface of the explosive charge.