Iranian Journal of Materials Science and Engineering, Volume (12), No (1), Year (2015-3) , Pages (28-34)

Title : ( COMBUSTION PERFORMANCE OF Ni-COATED AND UNCOATED HIGH ENERGETIC ALUMINUM NANOPARTICLES )

Authors: Hossein Shalchian , Ali Farbod , Hossein Beygi Nasrabadi , Seyed Abdolkarim Sajjadi ,

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High energetic aluminum nanoparticles are mainly used as additive in solid rocket propellants. However, fabrication of these aluminized energetic materials is associated with decreasing the burning rate of propellants due to problems such as oxidation and agglomeration of nanoparticles. In this study, to improve combustion performance of aluminum nanoparticles, coating by metallic Ni shell was studied. Nickel coating of aluminum nanoparticles was performed through electroless deposition (ED); subsequently, morphology and chemical composition of Ni-coated nanoparticles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). These studies show that a uniform Ni layer with a thickness of 10nm is coated on the surface of Al nanoparticles. Thermal analysis of uncoated and Ni-coated aluminum nanoparticles was done using differential thermal analysis (DTA) and thermo gravimetric analysis (TGA). The results of thermal analysis indicate that, coating the aluminum particles by Ni, leads to improvement in combustion performance of aluminum nanoparticles through decreasing critical ignition temperature, ignition delay time of the nanoparticles and promoting the ignition by exothermic chemical reactions between Al and Ni.

Keywords

, Combustion mechanism, Aluminum nanoparticle, Electroless deposition, Electron
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@article{paperid:1047278,
author = {Shalchian, Hossein and Ali Farbod and Beygi Nasrabadi, Hossein and Sajjadi, Seyed Abdolkarim},
title = {COMBUSTION PERFORMANCE OF Ni-COATED AND UNCOATED HIGH ENERGETIC ALUMINUM NANOPARTICLES},
journal = {Iranian Journal of Materials Science and Engineering},
year = {2015},
volume = {12},
number = {1},
month = {March},
issn = {1735-0808},
pages = {28--34},
numpages = {6},
keywords = {Combustion mechanism; Aluminum nanoparticle; Electroless deposition; Electron microscopy.},
}

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%0 Journal Article
%T COMBUSTION PERFORMANCE OF Ni-COATED AND UNCOATED HIGH ENERGETIC ALUMINUM NANOPARTICLES
%A Shalchian, Hossein
%A Ali Farbod
%A Beygi Nasrabadi, Hossein
%A Sajjadi, Seyed Abdolkarim
%J Iranian Journal of Materials Science and Engineering
%@ 1735-0808
%D 2015

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