Advanced Energetic Materials (2004) / Chapter Skim
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2 New Energetic Materials
2 New Energetic Materials
Pages 8-15
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From page 8... ...
They all agreed that CHNO/F compounds continue to be the central and core ingredients for the vast majority of explosive and propellant formulations for the foreseeable future.) As such, this specialized field of synthesis needs to be a dynamic element of any initiative for meeting the emerging performance goals of future military ordnance.2 It is important to note that the committee's task did not extend to verifying these service requirements presented to it.
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From page 9... ...
While it is generally accepted that new CH NO/F molecules will offer only incremental improvements to the currently employed materials, these improvements will lead to significant cumulative weapons system performance enhancement on target when coupled to technological advances in targeting, lethality, survivability, and advanced fusing, to cite a few areas. TRANSITION BARRIERS It must be pointed out that over the past several decades, the products of the research of the energetic materials synthesis community have not successfully made the transition to military applications.
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From page 10... ...
CHNO/F Targeted Energetic Materials Synthesis Programs Caged Nitramines In the early 1970s, the Research Department of the then-Naval Weapons Center (NWC) in China Lake, California, conducted a short-term effort to synthesize hexanitrobenzene (HNB)
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From page 11... ...
Isp (s) HMX 1.90 37.4 272 H N FX 1.gga 47.4a 285a a calculated The ONR Mechanics Division continues to fund synthesis efforts at the Research Department, Naval Air Warfare Center-Weapons Division (NAWC-WDy, China Lake, and at the Naval Surface Warfare Center-lndian Head Division (NSWC-IH)
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From page 12... ...
Theoretical calculations on some target molecules suggest that materials with greater performance than that of HMX, and a higher heat of formation than that of either HMX or CL-20, may exist in this class of energetic materials.~7 Highsmith,~s Shechter'49 Hiskey,20 and Koppes2i touched on several examples in their presentations to the committee. Many of these compounds, or relatives thereto, were initially discovered and reported in the open literature by scientists in the former Soviet Union.22-3i To date, no OK.
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From page 13... ...
It must be noted that all of the new energetic molecules discussed above are essentially legacy molecules that resulted from sustained, concerted multiyear or even multidecade efforts, and that the funding of these materials synthesis programs has essentially dwindled to near zero. These legacy materials are in no way ideal, however, and some degradation and decomposition must be expected.
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From page 14... ...
This is termed a new material, but it was devised simply through formulation, using currently employed energetic materials to mimic an explosive fill first demonstrated by the former Soviet Union. 37 It is important to note that the sponsor's principal charge to the committee was to find, if it existed, the "low hanging fruit" generated by the synthesis/energetic materials community.
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From page 15... ...
· The anticipated smaller, internally carried ordnance with a concomitant requirement for higher performance will require new explosive formulations with higher energy content. These new critical tactical requirements of the battlefield mandate a strong synthesis program.
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