广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
17期
78-80,112
,共4页
亚稳态分子复合物%纳米铝热剂%超细RDX%燃烧速度%燃烧转爆轰
亞穩態分子複閤物%納米鋁熱劑%超細RDX%燃燒速度%燃燒轉爆轟
아은태분자복합물%납미려열제%초세RDX%연소속도%연소전폭굉
metastable intermolecular composites%nano -thermite%superfine RDX%combustion velocity%deflagration to detonation transition
采用溶胶-凝胶方法，制备出了纳米铝热剂nano-Fe2 O3-Al，并获得了其与超细RDX的复合含能材料nano -Fe2 O3-Al/SFRDX。采用BET法、 SEM、 XRD综合表征了nano-Fe2 O3-Al的结构，采用TG/DSC联用技术测试了nano-Fe2 O3-Al的热性能，结果表明气凝胶铝热剂的反应温度更低； nano-Fe2 O3-Al的静电火花感度测试结果表明纳米铝热剂对静电十分敏感。对nano-Fe2 O3-Al/SFRDX在无约束条件和密闭条件下的燃烧行为进行了研究，高速相机照片法发现在无约束条件下， nano-Fe2 O3-Al燃烧高达300 m/s，且nano-Fe2 O3-Al/SFRDX具有在无约束条件下由燃烧转为爆轰的趋势。
採用溶膠-凝膠方法，製備齣瞭納米鋁熱劑nano-Fe2 O3-Al，併穫得瞭其與超細RDX的複閤含能材料nano -Fe2 O3-Al/SFRDX。採用BET法、 SEM、 XRD綜閤錶徵瞭nano-Fe2 O3-Al的結構，採用TG/DSC聯用技術測試瞭nano-Fe2 O3-Al的熱性能，結果錶明氣凝膠鋁熱劑的反應溫度更低； nano-Fe2 O3-Al的靜電火花感度測試結果錶明納米鋁熱劑對靜電十分敏感。對nano-Fe2 O3-Al/SFRDX在無約束條件和密閉條件下的燃燒行為進行瞭研究，高速相機照片法髮現在無約束條件下， nano-Fe2 O3-Al燃燒高達300 m/s，且nano-Fe2 O3-Al/SFRDX具有在無約束條件下由燃燒轉為爆轟的趨勢。
채용용효-응효방법，제비출료납미려열제nano-Fe2 O3-Al，병획득료기여초세RDX적복합함능재료nano -Fe2 O3-Al/SFRDX。채용BET법、 SEM、 XRD종합표정료nano-Fe2 O3-Al적결구，채용TG/DSC련용기술측시료nano-Fe2 O3-Al적열성능，결과표명기응효려열제적반응온도경저； nano-Fe2 O3-Al적정전화화감도측시결과표명납미려열제대정전십분민감。대nano-Fe2 O3-Al/SFRDX재무약속조건화밀폐조건하적연소행위진행료연구，고속상궤조편법발현재무약속조건하， nano-Fe2 O3-Al연소고체300 m/s，차nano-Fe2 O3-Al/SFRDX구유재무약속조건하유연소전위폭굉적추세。
Fe2 O3 -Al nano-thermite ( nano-Fe2 O3 -Al) was prepared by sol -gel method , and the composite of nano-thermite and superfine RDX ( SFRDX ) was obtained as a novel energetic materials.The nanostructure of the material was characterized by BET , SEM and XRD methods , Thermal Gravitation and Differential Scanning Calorimetry (TG/DSC) analysis was performed to show thermal properties , and the results showed that aerogel nano -thermite had a lower initial reaction temperature.The electric sparkle sensitivity test showed that the Fe 2 O3 -Al nano -thermites were extremely sensitive to electro -static discharge.The combustion of nano -Fe2 O3 -Al, SFRDX, and their composites without confinement were also researched.The combustion velocity of nano -Fe2 O3 -Al measured by high speed camera reaches up to 300 m/s, and furthermore , the nano -Fe2 O3 -Al/SFRDX had the tendency of deflagration to detonation transition ( DDT) without confinement.
