Abstract
Shaped charge (SC) ammunition is a weapon designed to penetrate armor. The functions of the liner, which is a core component of the SC, are penetration and explosion. Because of the increasing necessity for the liner with both penetrating and demolition functions, a double-layer liner was produced which could cause explosion after penetration (penetration–explosion effect, PE). A double-layer liner was designed to increase the explosive power of the SC and to enhance the SC’s performance by PE effect. Reactive Al and Al-Ni coatings were successfully deposited on the conical Cu liner via kinetic spray to fabricate the double-layer liner. A ballistic test was conducted to compare the explosive power between a single Cu liner and double-layer liners and to identify the PE effect. By measuring the penetration area of the target plate and the number of broken support bolts, the liner’s explosive power was compared and determined. The explosive power of double-layer liner was stronger than that of the single Cu liner. Alumina and an intermetallic compound of Al-Ni, both of which are evidence of exothermic reactions, were investigated using EDS and XRD techniques.
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This work was supported by an Agency for Defense Development (ADD) grant funded by the Korean government (MOST) (No. 111115-911004001).
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This article is an invited paper selected from presentations at the 8th Asian Thermal Spray Conference (ATSC 2017) and has been expanded from the original presentation. ATSC 2017 was held in Jeju, Korea, November 6-8, 2017, and was organized by the Asian Thermal Spray Society and the Korean Thermal Spray Association.
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Lee, S., Kim, J., Kim, S. et al. Performance Comparison of Double-Layer Liner for Shaped Charge Fabricated Using Kinetic Spray. J Therm Spray Tech 28, 484–494 (2019). https://doi.org/10.1007/s11666-018-0807-y
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DOI: https://doi.org/10.1007/s11666-018-0807-y