Abstract
Different reactive materials were prepared and evaluated as potential heaters to evaporate refractory and readily ionized samarium metal. Fully dense, nanocomposite powders of thermites and boride-forming compounds were prepared using arrested reactive milling. In some samples, samarium powder was blended with the nanocomposite powders; in other samples samarium was added using an additional short milling step. Powders were pressed in pellets and ignited at a low pressure. Flame propagation was monitored optically; combustion products were collected and analyzed. It was observed that nanocomposite 2B-Ti powder, in which samarium was added via an additional milling step was most suitable for evaporating samarium, while preventing its reaction with other material components. Up to 30 wt-% of samarium could be added and most of it evaporated in the presented experiments.
Original language | English (US) |
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Pages (from-to) | 926-935 |
Number of pages | 10 |
Journal | Propellants, Explosives, Pyrotechnics |
Volume | 41 |
Issue number | 5 |
DOIs | |
State | Published - Oct 1 2016 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Chemical Engineering
Keywords
- Easily ionized metals
- Energetic materials
- Heat sources
- Pyrotechnic charges