Innovative, mechanically activated Al-polytetrafluoroethylene (PTFE) composites and ammonium perchlorate (AP) coated nano-sized aluminum (C-ALEX) were produced, characterized and tested as solid fuel additives. The ballistics of fuel formulations based on hydroxyl-terminated polybutadiene (HTPB) was investigated in a micro-burner by a time-resolved technique for regression rate (rf) data reduction. Both Al-PTFE composites and C-ALEX show promising results in terms of rf enhancement In particular, the C-ALEX showed a percent rf increase over the baseline (HTPB) of 27% at an oxidizer mass flux of 350 kg/(m2s), without requiring dedicated dispersion procedures. This performance enhancement was nearly constant over the whole investigated range.
Effects of Aluminum Composites on the Regression Rates of Solid Fuels
PARAVAN, CHRISTIAN;DE LUCA, LUIGI;GALFETTI, LUCIANO
2015-01-01
Abstract
Innovative, mechanically activated Al-polytetrafluoroethylene (PTFE) composites and ammonium perchlorate (AP) coated nano-sized aluminum (C-ALEX) were produced, characterized and tested as solid fuel additives. The ballistics of fuel formulations based on hydroxyl-terminated polybutadiene (HTPB) was investigated in a micro-burner by a time-resolved technique for regression rate (rf) data reduction. Both Al-PTFE composites and C-ALEX show promising results in terms of rf enhancement In particular, the C-ALEX showed a percent rf increase over the baseline (HTPB) of 27% at an oxidizer mass flux of 350 kg/(m2s), without requiring dedicated dispersion procedures. This performance enhancement was nearly constant over the whole investigated range.| File | Dimensione | Formato | |
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