Selection of an igniter system for magnesium‐based solid fuel rich propellant

Abstract

Suitability of a number of metal based igniter compositions have been studied for magnesium based fuel rich propellant. Igniter compositions have been tested in closed vessel for evaluation of ignition pressure output and impetus. Heat energy values were determined calorimetrically in a closed bomb. Vented vessel study was carried out in a test motor for assessing relative behaviour and to select a suitable composition. Compositions containing magnesium powder and potassium nitrate were found to give satisfactory ignition to the propellant.

The Influence of the Various Types of Binder on the burning characteristics of the magnesium‐, boron‐, and aluminum‐based igniters

“…The highest values have been found if PR and shellac were the binders used. As these binders have the highest heat outputs this conclusion is consistent with the literature (23).…”

A study on combustion behaviour of carbon-sulphur-sodium nitrate mixtures

“…Although black powder is the oldest explosive known, it is still being used due to its peculiar properties [6]. Extensive studies [7][8][9] have been carried out and a substitute has been sought [10].Sodium nitrate is used as an oxidizer in propellants for air-augmented rocket applications [11][12] and trip flare or ignition mixtures [13].In our study the KNO3 has been substituted by NaNO3 and the combustion behaviour of mixtures containing NaNO3, carbon black/charcoal and S has been studied by DSC, TG/DTG and FTIR emission spectroscopy. …”