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URL: https://apps.dtic.mil/sti/tr/pdf/ADA311583.pdf

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%PDF-1.4 %���� 1 0 obj << /Type /Catalog /Pages 2 0 R /PageMode /UseNone >> endobj 3 0 obj << /CreationDate (D:191030102172241) /Title (The Effects of Ferrocenic and Carborane Derivative Burn Rate Catalysts in AP Composite Propellant Combustion: Mechanism of Ferrocene-Catalysed Combustion.) /Creator (LuraDocument PDF Compressor Server 5.7.66.46 \(original: tif_convert_2_ps\(\)\)) /Producer (Recoded by LuraDocument PDF v2.46) /ModDate (D:20110914073241-05'00') /Author (Nguyen, T. T.) /Keywords (*COMBUSTION;*CATALYSTS;*BURNING RATE;*AMMONIUM PERCHLORATE;*CARBORANES;*FERROCENES;*COMPOSITE PROPELLANTS;SCANNING ELECTRON MICROSCOPES;AUGMENTATION;EXPLOSIVES;QUENCHING;IRON;SURFACES;PROPELLANTS;BOUNDARIES;PARTICLES;X RAY PHOTOELECTRON SPECTROSCOPY;ALUMINUM;HETEROGENEITY;BINDERS;AUSTRALIA;DECOMPOSITION;PYROLYSIS;SOLID ROCKET PROPELLANTS;PROPELLANT BURN OUT;HYDROXY TERMINATED POLYBUTADIENE) /Subject (The combustion of HTPBAP propellants containing ferrocene-type and carborane-type burn rate catalysts was examined. The ferrocenic catalysts are good burn rate enhancers, but the carborane-type compounds showed little improvement, even at 3 catalyst concentration. An order of relative catalyst effectiveness was established for 1 catalyst concentration at 20 deg C. Examination reveals the enhancing effect of 1 Catocene is approximately equivalent to 0.5 Butacene. Characteristic surface features observed for the carborane- catalysed propellants contrast to those for the ferrocene-catalysed propellants. For ferrocene-catalysed combustion, the experimental evidence is in favour of a mechanism whereby the ferrocenic catalyst acts in the binder to catalyse the heterogeneous reactions between the binder and the AP at the binderoxidiser interface. The evidence includes the following 1 Enhanced burn rates of the Butacene propellant over the Catocene propellant, both propellants containing the same amount of iron in the ferrocenic catalysts 2 Fe particles dispersed in the binder of the quenched propellant surface 3 undercuttings along the boundaries of surface AP particles and 4 the convex, protruding sometimes apparently intact AP particle surface. There was no evidence of the catalyst promoting surface AP decomposition reactions. p50) /Filename (/pdf/TR/ADA311583.pdf) >> endobj 2 0 obj << /Type /Pages /Kids [4 0 R 5 0 R 6 0 R 7 0 R 8 0 R] /Count 50 >> endobj 4 0 obj << /Type /Pages /Kids [9 0 R 10 0 R 11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R 17 0 R 18 0 R] /Count 10 /Parent 2 0 R >> endobj 5 0 obj << /Type /Pages /Kids [19 0 R 20 0 R 21 0 R 22 0 R 23 0 R 24 0 R 25 0 R 26 0 R 27 0 R 28 0 R] /Count 10 /Parent 2 0 R >> endobj 6 0 obj << /Type /Pages /Kids [29 0 R 30 0 R 31 0 R 32 0 R 33 0 R 34 0 R 35 0 R 36 0 R 37 0 R 38 0 R] /Count 10 /Parent 2 0 R >> endobj 7 0 obj << /Type /Pages /Kids [39 0 R 40 0 R 41 0 R 42 0 R 43 0 R 44 0 R 45 0 R 46 0 R 47 0 R 48 0 R] /Count 10 /Parent 2 0 R >> endobj 8 0 obj << /Type /Pages /Kids [49 0 R 50 0 R 51 0 R 52 0 R 53 0 R 54 0 R 55 0 R 56 0 R 57 0 R 58 0 R] /Count 10 /Parent 2 0 R >> endobj 9 0 obj << /Type /Page /Parent 4 0 R /Resources << /ProcSet [/PDF /ImageB] /XObject << /Im1 59 0 R >> 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