Multi component reactive metal penetrators, and their method of manufacture
a reactive metal and metal penetrator technology, applied in the field of penetrators, can solve the problems of significant damage, difficult manufacturing, and inherent limitations of both prior patented inventions, and achieve the effect of substantial energy releas
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invention example 1
[0027]An alloy of Ta and Zr was prepared by melting Zr and Ta metals in the arc of a plasma transferred arc (PTA) welding torch and depositing the product in a graphite crucible as shown in FIG. 4. A current of 250 amps was used for the PTA torch, which was sufficient to melt both the Ta powder and Zr wire. The molar ratio was approximately 1.3Ta:1Zr. After cooling to room temperature, the alloy was machined into cubes with dimensions of ¼″ by EDM machining. The cubes were gun launched at a speed of 7242 ft / sec and targeted at a steel encased test chamber. The experiment was instrumented with pressure transducers attached to the target chamber, an optical pyrometer to measure temperature, and a high speed digital camera to image the energy release. The cube penetrated the 0.060″ mild steel entrance plate, and then traversed the target chamber to a ¾″ rear plate. The energy release as noted by optical imaging is shown in FIG. 5, and appears comparable to that obtained for pure Zr in ...
invention example 2
[0028]A layered composite of Ta and Zr was prepared by depositing a layer of Zr on each side of a ⅛″ Ta plate at a torch amperage of 225 amps. After cooling to room temperature, the alloy was machined into cubes with a dimension of ¼″ by EDM machining. The molar ratio of the Ta and the Zr in the cubes was approximately 1.3Ta:1Zr. The cubes were gun launched at a speed of 6255 ft / sec and targeted at a steel encased test chamber. The experiment was instrumented with pressure transducers attached to the target chamber, an optical pyrometer to measure temperature, and a high speed digital camera to image the energy release. The cube penetrated the 0.060″ mild steel entrance plate, and then traversed the target chamber to a ¾″ rear plate. The energy release as noted by optical imaging is shown in FIG. 5. A temperature rise to ˜3800° K was measured in the chamber with a pressure increase of 8.7 psi. It was estimated that ˜20% of the original penetrator mass remained on the chamber floor a...
invention example 3
[0029]An alloy of W and Zr was prepared using the experimental setup as shown in FIG. 4 with a feed of W powder and Zr wire. An amperage for the PTA torch of 280 amps was used which was sufficient to melt both metals. After cooling to room temperature, the alloy was machined into cubes with a dimension of ¼″ by EDM machining. The molar ratio of the W and the Zr in the cubes was approximately 1.3W:1Zr. The cubes were gun launched tested by targeting the penetrator cube at a steel encased test chamber which was instrumented with optical imaging.
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