SCALE-UP EFFECTS OF NANOPARTICLE PRODUCTION ON THE BURNING RATE OF COMPOSITE PROPELLANT

    Authors

    K. Kreitz; E. Petersen; D. Reid;S. Seal

    Comments

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    Abbreviated Journal Title

    Combust. Sci. Technol.

    Keywords

    Catalyst; Nanoparticle; Solid propellant; Titania; SOLID-PROPELLANTS; AMMONIUM-PERCHLORATE; ADDITIVES; COMBUSTION; Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical

    Abstract

    The use of catalytic nanoparticle additives in composite solid propellant as burning rate modifiers has received much research attention in recent years, and as the widespread application of nanoparticles becomes more practical, scale-up processing and testing will be required. This article investigates the potential benefits of various additive processing methods and their effects on the burning rate of propellant consisting of ammonium perchlorate and hydroxyl terminated polybutadiene. Titania was investigated herein, but many of the results should apply to any metal oxide catalyst. Depending on how the additive was processed, it was seen to be both an effective and ineffective burning rate modifier. The ideal processing method was determined, leading to a better understanding of how the additive interacts with the propellant. The physical properties of the additive agglomerations were found to be a link between the additive processing and its effectiveness. Specifically, sintering of the additive agglomerates during heat treating limited the dispersion of the additives, ultimately hindering their ability to modify burning rate. This article presents one of the first studies that conclusively demonstrates the link between the processing of nanoparticles and their effectiveness in modifying propellant burning rate.

    Journal Title

    Combustion Science and Technology

    Volume

    184

    Issue/Number

    6

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    750

    Last Page

    766

    WOS Identifier

    WOS:000304040600002

    ISSN

    0010-2202

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