Slurry casting method for double base propellants

Explosive and thermic compositions or charges – Structure or arrangement of component or product – Solid particles dispersed in solid solution or matrix

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149 198, C06B 4510

Patent

active

044628480

ABSTRACT:
A slurry casting process is described capable of producing crosslinked double base propellant having improved burning rates and high specific impulse. Such propellants can be formulated to be smokeless. Improved burning rates are achieved by incorporating into a slurry of double base composition, casting powder granules containing 20% to 75% by weight of small particle ammonium perchlorate. The casting powder granules substantially retain their indentity in the cured propellant matrix. The casting powder granules have a high burning rate and are uniformly distributed throughout the propellant. The granules are responsible for increasing the burning rate of the entire crosslinked double base propellant composition of the invention.

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AIAA Journal, vol. 17, No. 8, Aug. 1979, Article No. 78 981R entitled "Oxidizer Size Distribution Effects on Propellant Combustion", by J. P. Renie, J. A. Condon and J. R. Osborn.

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