Ballistic Modification of RDX‐Based CMDB Propellants

Abstract

The effect of lead and copper salts and certain metallic oxides was studied on the burning rates of RDX‐based CMDB propellants in the pressure region 35–105 [kg/cm2]. Lead methylene disalicylate (LMDS), basic copper salicylate (BCS). cobaltic oxide and lead stannate produced higher burning rates by 10%–16%. However, these additives were comparatively more effective with nitramine‐based CMDB propellants than AP‐based CMDB propellants. Fluorides of iron, lead and chromium were ineffective as burning rate catalysts. Inclusion of carbon black along with lead salts or metallic oxide gave only marginally higher burning rates. None of the ballistic modifiers studied produced plateau/mesa effect.

Characteristics of RDX combustion zones at different pressures and initial temperatures

“…Combustion of RDX and RDXbased compositions has been carefully studied recently [1][2][3][4][5][6][7]. The thermal structure of combustion waves has also been considered [2][3][4][5].…”

Studies on diaminoglyoxime (DAG): Thermolysis and evaluation as ballistic modifier in double base propellant

“…Efforts are made to reduce the 'n' of nitramine-based systems by conventional ballistic modifiers have met with the limited success [3][4][5]. A decade back, heterocyclic compound-dinitropiperazine (DNP) ( H f , −54 kJ mol −1 ), emerged as an additive capable of reducing the pressure index value of nitramine-based propellants in combination with conventional ballistic modifiers [6,7].…”

Diaminofurazan (DAF): Thermolysis and evaluation as ballistic modifier in double base propellant

“…E-mail address: jaya nair42@yahoo.com (J.K. Nair). listic modifiers such as lead salicylate, have met with the limited success [4][5][6]. Search is on for lead free ballistic modifiers to be incorporated in nitramine based double base propellants.…”