| || Study of Energetic Nitramine Extruded Double Base Propellants
Author : Singh, S.N. ;Mulage, K.S.;Joshi, A.D.;Pundlik, S.M.;Gautam, G.K.
Source : Defence Science Journal ; Vol:48(2) ; 1998 ; pp 235-243
Subject : 66 Chemical Technology;662.3 Propellants;620.261 Explosives
Keywords : Temperature sensitivity ;Tensile strength;Superior thermal stability;Pressure exponent;Ballistic modifiers;RDX
Abstract : "This paper gives the results of an experimental study on nitramine extruded double-base (EDB) formulations containing up to 25 percent RDX in low and high calorimetric value double- base (DB) propellants. The effect of ballistic modifiers on the burn rate and pressure exponent (neeta) of promising formulations has also been investigated. The data generated on various parameters reveal that (i) nitraniine EDB propellants exhibit relatively superior thermal stability; (ii) tensile strength and percentage elongation are drastically altered if RDX concentration exceeds 15 per cent, (iii) neeta is lowered significantly in the presence of ballistic modifiers, (iv) characteristic velocity (C*) values are higher to that for the control formulation, and (v) temperature sensitivity of burn rate is on the lower side (0.20 -0.25 % / °C as against 0.40 % / °C) in the presence of ballistic modifiers."