All Title Author
Keywords Abstract

Publish in OALib Journal
ISSN: 2333-9721
APC: Only $99

ViewsDownloads

Relative Articles

More...
-  2018 

Combustion Properties of Metal Particles as Components of Modified Double-Base Propellants
Combustion Properties of Metal Particles as Components of Modified Double-Base Propellants

DOI: 10.15918/j.jbit1004-0579.201827.0218

Keywords: metal particles modified double-base propellant combustion properties flame structure
metal particles modified double-base propellant combustion properties flame structure

Full-Text   Cite this paper   Add to My Lib

Abstract:

Metal particles such as aluminum (Al), magnesium (Mg), boron (B) and nickel (Ni), as well as Mg/Al alloy (Mg/Al3/4) are currently the most widely used ingredients in modified double-base propellants. In this contribution, the combustion properties of the metal species are studied by means of the high-speed photography technique and the non-contact wavelet-based measurement of flame temperature distribution. The combustion process of the Al, Mg and Mg/Al samples shows both gas phase reaction and surface oxidation, which yield volatile and nonvolatile products, corresponding to the oxide and suboxide respectively. However, the combustion of B and Ni shows only gas phase reaction, due to their high melting point as well as high enthalpy of vaporization. In addition to the experiments, a hypothetical combustion model has been proposed to clarify the combustion characteristics of metal species in modified double-base propellants.
Metal particles such as aluminum (Al), magnesium (Mg), boron (B) and nickel (Ni), as well as Mg/Al alloy (Mg/Al3/4) are currently the most widely used ingredients in modified double-base propellants. In this contribution, the combustion properties of the metal species are studied by means of the high-speed photography technique and the non-contact wavelet-based measurement of flame temperature distribution. The combustion process of the Al, Mg and Mg/Al samples shows both gas phase reaction and surface oxidation, which yield volatile and nonvolatile products, corresponding to the oxide and suboxide respectively. However, the combustion of B and Ni shows only gas phase reaction, due to their high melting point as well as high enthalpy of vaporization. In addition to the experiments, a hypothetical combustion model has been proposed to clarify the combustion characteristics of metal species in modified double-base propellants.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133