| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 |
21권 1호, p.876 |
| 발표분야 |
재료 |
| 제목 |
Effect of aluminum trapping by Cu condensation on thermite reaction of Al/CuO composite |
| 초록 |
Nanothermite, mixture of nano-scale fuel and oxidizer, is attractive material for its high exothermic reaction resulted from high surface area compared to microthermite. Among the various thermite material, Al-CuO composites is commonly used. In Al-CuO system, the stoichiometric reaction is 3CuO + 2Al → 3Cu + Al2O3. While Al-CuO is fully ignited when molar ratio of CuO and Al is 3 to 2, it is observed that maximum explosion is occurred in Al-rich environment. In this research, we suggest condensed Cu on unreacted Al affect critically in Al-CuO thermite reaction. We detected Cu and AlxCuy alloy, result of diffusion between Al and condensed Cu, in XRD patterns. Additionally, TEM image showed AlxCuy alloy and Cu on the Al surface and we believe these materials block a supply of oxygen into Al core. |
| 저자 |
이규현1, 김휘동1, 김다흰1, 심재원1, 배상범1, 신도중1, 유지창2, 이도창1
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| 소속 |
1KAIST, 2국방과학(연) |
| 키워드 |
thermite; energetic; nano
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| E-Mail |
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| 원문파일 |
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