H. Singh

Bio: H. Singh is an academic researcher. The author has contributed to research in topics: Combustion & Rocket. The author has an hindex of 1, co-authored 1 publications receiving 6 citations.

Effect of Lead and Copper Methylene Disalicylates on the combustion rates of double‐base rocket propellants

Abstract: The effect of lead and copper methylene disalicylates and their mixtures was studied on the burning rates (35 kg/cm2-140 kg/cm2), heat of explosion, stability and thermal decomposition of double-base propelants. The results indicate that these salts are very effective catalyst and their mixtures produce super-rate burning (140% increase) with a uniform pressure index value in the entire pressure range. These additives lower “n” value to about 0.2–0.3 in some of the pressure regions. Results of DTA study suggest that these additives decompose in an exothermic mode in the temperature range close to the surface temperature of double base propellants.

High energy material research and development in India

Abstract: The manuscript presents the research and development (R&D) work carried out by Indian scientists in the various areas of high energy materials (HEM) broadly covering propellants, explosives, and pyrotechnics. While India is self-sufficient in the field of high energy solid propellant, and both science and technology have reached international levels, more exhaustive R&D work is needed in the field of Earth storable liquid and cryogenic propellants. In the field of commercial and military high explosives, slurry/emulsion, cyclotrimethylenetrinitramine/cyclotetramethylenetetranitramine-based compositions have been extensively studied, evaluated, and used. However, to meet futuristic requirements, more powerful (velocity of detonation greater than 9500 m/s, density greater than 2 g/cc) and thermally stable explosives (>350°C) are being synthesized and characterized. Infrared (IR) smoke compositions effective in high IR region (8-14 /*) have been developed. However, the thrust areas in all the wings of HEM are development of more powerful, less sensitive, and environmentally friendly compositions and fully automatic, remote control processing technologies.

Thermal decomposition studies of catalysed double base propellants

Abstract: To understand the rote of lead salts of organic acids in the combustion of double base rocket propellants, thermal decomposition behaviour of propellants was studied bydta andtg methods. Catalysed propellants decomposed at lower temperatures than the control. Percent thermal decomposition of propellants containing lead salts was also higher. Rate constants were higher and energy of activation was lower for catalysed propellants. Results obtained suggest that condensed phase reactions may be the site for the action of lead salts in the combustion of double base propellants

Effect of Certain Barium and Cobalt Salts on the Burning Rate- Pressure Relationship of Double Base Rocket Propellants

Abstract: The influence of certain barium and cobalt salts was studied on the burning rate- pressure relationship or double-base propellants. Among barium salts, barium-β-resorcylate produced the best catalytic effect with significant plateau effect in the 35-70 kg/cm2 pressure range, whereas among the cobalt salts the best results were obtained with cobalt stearatc in the low pressure range and with cobalt salicylate in the high pressure range. These salts were found to dccompose in the surface temperature range of double-base propellants. and propellants containing them decomposed at lower temperatures than the control.