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Solution combustion synthesis of nanosized copper chromite and its use as a burn rate modifier in solid propellants / P. S. Sathiskumar in Industrial & engineering chemistry research, Vol. 51 N° 30 (Août 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 30 (Août 2012) . - pp. 10108–10116 Titre : Solution combustion synthesis of nanosized copper chromite and its use as a burn rate modifier in solid propellants Type de document : texte imprimé Auteurs : P. S. Sathiskumar, Auteur ; C. R. Thomas, Auteur ; Giridhar Madras, Auteur Année de publication : 2012 Article en page(s) : pp. 10108–10116 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Combustion  Nanosized Résumé : Nano sized copper chromite, which is used as a burn rate accelerator for solid propellants, was synthesized by the solution combustion process using citric acid and glycine as fuel. Pure spinel phase copper chromite (CuCr2O4) was synthesized, and the effect of different ratios of Cu–Cr ions in the initial reactant and various calcination temperatures on the final properties of the material were examined. The reaction time for the synthesis with glycine was lower compared to that with citric acid. The synthesized samples from both fuel cycles were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), BET surface area analysis, and scanning electron microscope (SEM). Commercial copper chromite that is currently used in solid propellant formulation was also characterized by the same techniques. XRD analysis shows that the pure spinel phase compound is formed by calcination at 700 °C for glycine fuel cycle and between 750 and 800 °C for citric acid cycle. XPS results indicate the variation of the oxidation state of copper in the final compound with a change in the Cu–Cr mole ratio. SEM images confirm the formation of nano size spherical shape particles. The variation of BET surface area with calcination temperature was studied for the solution combusted catalyst. Burn rate evaluation of synthesized catalyst was carried out and compared with the commercial catalyst. The comparison between BET surface area and the burn rate depicts that surface area difference caused the variation in burn rate between samples. The reason behind the reduction in surface area and the required modifications in the process are also described. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301435r [article] Solution combustion synthesis of nanosized copper chromite and its use as a burn rate modifier in solid propellants [texte imprimé] / P. S. Sathiskumar, Auteur ; C. R. Thomas, Auteur ; Giridhar Madras, Auteur . - 2012 . - pp. 10108–10116. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 30 (Août 2012) . - pp. 10108–10116 Mots-clés : Combustion  Nanosized Résumé : Nano sized copper chromite, which is used as a burn rate accelerator for solid propellants, was synthesized by the solution combustion process using citric acid and glycine as fuel. Pure spinel phase copper chromite (CuCr2O4) was synthesized, and the effect of different ratios of Cu–Cr ions in the initial reactant and various calcination temperatures on the final properties of the material were examined. The reaction time for the synthesis with glycine was lower compared to that with citric acid. The synthesized samples from both fuel cycles were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), BET surface area analysis, and scanning electron microscope (SEM). Commercial copper chromite that is currently used in solid propellant formulation was also characterized by the same techniques. XRD analysis shows that the pure spinel phase compound is formed by calcination at 700 °C for glycine fuel cycle and between 750 and 800 °C for citric acid cycle. XPS results indicate the variation of the oxidation state of copper in the final compound with a change in the Cu–Cr mole ratio. SEM images confirm the formation of nano size spherical shape particles. The variation of BET surface area with calcination temperature was studied for the solution combusted catalyst. Burn rate evaluation of synthesized catalyst was carried out and compared with the commercial catalyst. The comparison between BET surface area and the burn rate depicts that surface area difference caused the variation in burn rate between samples. The reason behind the reduction in surface area and the required modifications in the process are also described. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301435r