Advanced Energetic Materials (2004) / Chapter Skim
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6 Advanced Gun Propellants
6 Advanced Gun Propellants
Pages 28-34
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From page 28... ...
As in the case of new energetic materials research and development, the number of U.S. researchers actively working on the formulation and development of advanced gun propellants is a group of fewer than 25 dedicated individuals.
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From page 29... ...
Navy researchers are likewise very interested in the use of layered propellants to enhance performance, but are also strongly motivated to find ways to reduce barrel erosion and thereby enhance barrel life. Both Army and Navy approaches employ advances in propellant-processing technologies that have matured significantly during the past decades.
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From page 30... ...
Such cooperative efforts among propellant and gun tube designers offer potential for improved systems and should continue. Army Research Activities To improve propellant performance so that it reaches the goal of increasing muzzle energy by 25 percent without increasing barrel wear, ARL and ARDEC are currently exploring energetic formulations based on thermoplastic elastomers (TPEs)
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From page 31... ...
In this test, a shaped charge jet attenuated through a conditioning plate of rolled homogeneous armor challenges a propellant sample (see Figure 6-4~. The violence of the reaction is then compared with a baseline such as JA2 (a nitrocellulose gun propellant 5 Joseph A
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From page 32... ...
The muzzle energy comes entirely from the chemical energy, rather than from the electrical energy. Significant performance enhancements using ETC technology with existing or advanced propellants have been demonstrated.
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From page 33... ...
The Navy has also had success in using energetic thermoplastic binders to develop green propellants.~° These binders are costly, so the Navy is looking at twin screw continuous extrusion processes to compensate for the higher material costs by reducing manufacturing costs. Using this technology, Navy researchers at NSWC-IH have successfully processed sufficient TPE-based propellants through a twin screw extruder to support a series of 5-in.
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From page 34... ...
· The exploration of high-nitrogen compounds as novel gun propellant ingredients in a variety of configurations should be pursued, with a requirement for an early demonstration. System-level efforts should be continued at a modest level for barrel wear, chamber design, and modeling.
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