Non-gaseous layer combustions: Part 1. Mechanism of the self-sustained reaction between iron and potassium dichromate
✍ Scribed by Gwilym J. Rees
- Book ID
- 103090348
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 517 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0016-2361
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✦ Synopsis
A detailed study of the mechanism of the self-sustained reaction between powdered iron and potassium dichromate, as a simple system for the simulation of rocket propulsion reactions, has been attempted. Temperature changes as the reaction front passes a point were measured; propagation velocities derived from these records by means of the Mallard-Le Chatelier theory agreed fairly well with the directly observed velocities. It was concluded that the thermal theory is a good representation of the behaviour of this particular composition. Kinetics at low density were found to differ greatly from those at high density. The difference may be explained on the hypothesis that reaction occurs at low density by means of the gas phase, and at high density, where contact is greater, by diffusion across solid-solid interfaces.