Ageing behaviour, leading to ballistic changes, has been studied as a function of oxidizer loading in polystyrene/ammonium perchlorate solid-propellants. The ageing studies were carried out at 100ยฐC in air. Change in burning rate decreased as the oxidizer loading increased from 75 to 80%. The change
Storage stability of solid rocket fuel. 1. Effect of temperature
โ Scribed by Kaushal Kishore; Vencatesh R. Pai Verneker; Ganga Prasad
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 313 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0016-2361
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โฆ Synopsis
Ageing behaviour of polystyrene (PSI/ammonium perchlorate (API propellant leading to ballistic changes has been studied. It follows a zero-order kinetic law. Ageing behaviour leading to change in burning rate (i) in the temperature range of 60-2OO'C was found to remain the same. The dependence of the change of the average thermal decomposition (TD) rate at 230 and 26O'C on the change in burning rate for the propellant aged at 100ยฐC in air suggests that the slow TD of the propellant is the cause of ageing. The safe-life (for a pre-assigned burning-rate change limit) at 25ยฐC in air has been calculated as a function of the rate of change.
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