Abstract
Composite solid propellants were prepared with and without nanoalloys (Zn–Cu, Zn–Ni, Zn–Fe), where nanoalloys are used as catalyst. Catalytic properties of these nanomaterials measured on ammonium perchlorate/hydroxyl-terminated polybutadiene propellant by thermogravimetric analysis and differential thermal analysis. Both experimental results show enhancement in the thermal decomposition of propellants in presence of nanoalloys. In differential thermal analysis method, experiments had done at three heating rates, β1 = 5°, β2 = 10°, β3 = 15° per minute. Calculation of activation energy of high temperature decomposition step was done by using following Kissinger equation. Zn–Cu was found to be the best.
Highlights
The nanomaterials show novel properties mainly due to their reduced dimensions, which result in domination of the surface over bulk (Alla et al 2004; Liu et al 2004; Peng et al 2011; Wang et al 2006)
Composite solid propellants were prepared with and without nanoalloys (Zn–Cu, Zn–Ni, Zn–Fe), where nanoalloys are used as catalyst
The X-ray diffraction (XRD) patterns (Fig. 1) for alloys Zn–Cu and Zn–Ni show considerable broadening of the peaks, which is due to the presence of very small particles
Summary
The nanomaterials show novel properties mainly due to their reduced dimensions, which result in domination of the surface over bulk (Alla et al 2004; Liu et al 2004; Peng et al 2011; Wang et al 2006). Abstract Composite solid propellants were prepared with and without nanoalloys (Zn–Cu, Zn–Ni, Zn–Fe), where nanoalloys are used as catalyst. Both experimental results show enhancement in the thermal decomposition of propellants in presence of nanoalloys. Calculation of activation energy of high temperature decomposition step was done by using following Kissinger equation.
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