Bulk modulus determination of solid propellant void content

Beckwith, S. W.; Carroll, H.

doi:10.2514/3.25724

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…8,9 Therefore, this type of pr opellant has been studied extensively and a pplied broadly in many countries since its first development in the USA in the 1970s. [10][11][12] However, the microstructure of the propellant, which decisively affects its performa nce, has hitherto not been clearly investigated. [13][14][15] In this study , scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were employed to directly observe the micro-morphology and distribution of the constituents in the propellant, whereby a detailed understanding of its special microstructure was obtained.…”

Section: Introductionmentioning

confidence: 99%

An SEM and EDS study of the microstructure of nitrate ester plasticized polyether propellants

Liu

Wang

Tuo

et al. 2010

JSCS

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To probe the microstructures of nitrate ester plasticized polyether (NEPE) composite propellants and observe the morphology of each constitute in the propellant, the microstructure and elemental constitutes of NEPE propellants were investigated using scanning electron microscopy and energy dispersive X-ray spectroscopy. The ammonium perchlorate (AP) grains had a scraggy surface and were difficult to disperse uniformly. The compatibility between the AP grains and the polymer binder was poor, especially for large grains. The size distribution range of the AP and octogen (HMX) grains in propellants varied from several to several hundreds ?m for the former while for the latter from several to several tens ?m. Contrasting images before and after dissolution the propellant in trichloromethane showed that the degree of crosslinking of the polymer binder was low since non-crosslinked binder on the surface areas was easily removed by the solvent, and that the plasticizer was near the HMX grains and contributed more O to the element analysis of HMX.

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