Abstract
The primary condensed-phase combustion products of a boron-based fuel-rich propellant were ignited using a high-power CO2 laser in a pressurized and windowed combustion chamber under variable pressure. The ignition and combustion performances were characterized using an ultraviolet-visible spectrometer and a high-speed camera. The experimental results showed that the combustion of the condensed-phase combustion products originate from the combustion of carbon, and boron may not take any part in the combustion process because of the formation of a thick boron oxide coating and agglomeration after the primary combustion process. Both particle size and the ingredients play an important role in the combustion reaction of the condensed-phase products. It was observed that a lower particle size and a higher boron carbide content are beneficial for the combustion reaction of the products; higher primary and secondary combustion pressures clearly improved the secondary combustion efficiency of the propellant in the combustion reaction.
Original language | English |
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Pages (from-to) | 448-460 |
Number of pages | 13 |
Journal | Central European Journal of Energetic Materials |
Volume | 14 |
Issue number | 2 |
DOIs | |
State | Published - 2017 |
Keywords
- Boron-based fuel-rich propellant
- Combustion performance
- Ignition
- Primary combustion products