Abstract
It has been introduced several ways for rising fuel burning rate. Using catalyzers is a common way to rising fuel burning rate. Cu-Chromite catalyzer used in solid fuels, as burning rate catalyzer in thermal decomposition of Ammonium Perchlorate and results were satisfying. This catalyzer is produced by several methods such as: ceramic, coprecipitating, sol-gel, vacuum depositioning, but this paper explains producing catalyzer by Citrate sol-gel. Thermal analysis is used for studying process also SEM, XRD, TEM, FTIR tests used for determination of particle sizes.
Highlights
IntroductionIn recent years the Cu-Cr-O composites are found great promising in application as burning rate catalysts (ballistic modifier) for solid propellants used in defense (high explosives, ballistic missiles) and space vehicles (rocket propellants)
Cu-Chromite catalyzer used in solid fuels, as burning rate catalyzer in thermal decomposition of Ammonium Perchlorate and results were satisfying
In recent years the Cu-Cr-O composites are found great promising in application as burning rate catalysts for solid propellants used in defense and space vehicles
Summary
In recent years the Cu-Cr-O composites are found great promising in application as burning rate catalysts (ballistic modifier) for solid propellants used in defense (high explosives, ballistic missiles) and space vehicles (rocket propellants). Even though added at few percent of the propellant binder, the catalysts used to control the burn rate are of high importance, since they allow improving the ballistics of rockets [1] Combustion of this system involves the decomposition of AP (ammonium perchlorate) and the binder and mixing and oxidation-reduction of the decomposition products. Li et al used Cu-Cr-O nanocomposites as additives for the catalytic combustion of AP-based solid-state propellants, synthesized via a citric acid (CA) complexing approach. Addition of the as synthesized Cu-Cr-O nanocomposites as catalysts enhances the burning rate as well as lowers the pressure exponent of the AP-based solid-state propellants considerably. The nano copper chromite (CuCr2O4) showed catalytic effect as compared to nano-cupric oxide (CuO) in lowering the high temperature decomposition by 118 ̊C at 2 wt%. They proposed a mechanism based on an electron transfer process for AP in the presence of nanometal oxides
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