Integrated preparation of Al-based energetic micro-unit fuel toward combustion performance
An Al-based energetic micro-unit Al@PFPE@AP fuel powder with the oxidant AP coated on the surface of fluoride-modified Al powder was designed and prepared by the component composite technique to address the two major problems of incomplete combustion and component polarization of Al powder in solid...
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| Format: | Article |
| Language: | zho |
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Journal of Aeronautical Materials
2023-08-01
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| Series: | Journal of Aeronautical Materials |
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| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000105 |
| _version_ | 1797752414704500736 |
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| author | LIU Qingdong WU Zhujun LI Miaomiao XU Yifeng XIN Xipeng XU Jijin SONG Xuefeng |
| author_facet | LIU Qingdong WU Zhujun LI Miaomiao XU Yifeng XIN Xipeng XU Jijin SONG Xuefeng |
| author_sort | LIU Qingdong |
| collection | DOAJ |
| description | An Al-based energetic micro-unit Al@PFPE@AP fuel powder with the oxidant AP coated on the surface of fluoride-modified Al powder was designed and prepared by the component composite technique to address the two major problems of incomplete combustion and component polarization of Al powder in solid propellants. The morphology, particle size, combustion properties and combustion products of the micro-unit powder were analyzed by scanning electron microscopy, laser particle size measurement, oxygen bomb calorimetry, inductively coupled plasma emission spectrometry and X-ray diffraction. The results show that the energetic microunits Al@PFPE@AP present a more obvious core-shell structure with uniform particle size, and when the addition amount of PFPE is 5%, the combustion heat value of Al@5%PFPE@AP is increased by 63.86%, the particle size of combustion products is decreased by 61.83%, and the active aluminum content of combustion products is decreased by more than 57% compared with the mechanically mixed AP+Al samples. Combustion mechanism analysis shows that PFPE can occur with Al powder pre-ignition reaction, increase the reaction activity of Al powder, and the surface of Al powder has a catalytic effect on the decomposition of AP, which reduces AP high temperature decomposition temperature and low temperature decomposition temperature were reduced by 12 ℃ and 10 ℃ respectively. The micro-unit structure has a significant contribution to the improvement of the combustion performance of the system and can substantially increase the energy performance of the important propellant components during combustion. |
| first_indexed | 2024-03-12T17:03:03Z |
| format | Article |
| id | doaj.art-7b62253a039f4d32899b9ea0f10c5595 |
| institution | Directory Open Access Journal |
| issn | 1005-5053 |
| language | zho |
| last_indexed | 2024-03-12T17:03:03Z |
| publishDate | 2023-08-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-7b62253a039f4d32899b9ea0f10c55952023-08-07T07:13:25ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532023-08-0143410211010.11868/j.issn.1005-5053.2022.0001052022-0105Integrated preparation of Al-based energetic micro-unit fuel toward combustion performanceLIU Qingdong0WU Zhujun1LI Miaomiao2XU Yifeng3XIN Xipeng4XU Jijin5SONG Xuefeng6School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaShanghai Space Propulsion Technology Research Institute, Huzhou 313000, Zhejiang, ChinaShanghai Space Propulsion Technology Research Institute, Huzhou 313000, Zhejiang, ChinaSchool of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaAn Al-based energetic micro-unit Al@PFPE@AP fuel powder with the oxidant AP coated on the surface of fluoride-modified Al powder was designed and prepared by the component composite technique to address the two major problems of incomplete combustion and component polarization of Al powder in solid propellants. The morphology, particle size, combustion properties and combustion products of the micro-unit powder were analyzed by scanning electron microscopy, laser particle size measurement, oxygen bomb calorimetry, inductively coupled plasma emission spectrometry and X-ray diffraction. The results show that the energetic microunits Al@PFPE@AP present a more obvious core-shell structure with uniform particle size, and when the addition amount of PFPE is 5%, the combustion heat value of Al@5%PFPE@AP is increased by 63.86%, the particle size of combustion products is decreased by 61.83%, and the active aluminum content of combustion products is decreased by more than 57% compared with the mechanically mixed AP+Al samples. Combustion mechanism analysis shows that PFPE can occur with Al powder pre-ignition reaction, increase the reaction activity of Al powder, and the surface of Al powder has a catalytic effect on the decomposition of AP, which reduces AP high temperature decomposition temperature and low temperature decomposition temperature were reduced by 12 ℃ and 10 ℃ respectively. The micro-unit structure has a significant contribution to the improvement of the combustion performance of the system and can substantially increase the energy performance of the important propellant components during combustion.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000105al powderenergetic microunitcombustion performance |
| spellingShingle | LIU Qingdong WU Zhujun LI Miaomiao XU Yifeng XIN Xipeng XU Jijin SONG Xuefeng Integrated preparation of Al-based energetic micro-unit fuel toward combustion performance Journal of Aeronautical Materials al powder energetic microunit combustion performance |
| title | Integrated preparation of Al-based energetic micro-unit fuel toward combustion performance |
| title_full | Integrated preparation of Al-based energetic micro-unit fuel toward combustion performance |
| title_fullStr | Integrated preparation of Al-based energetic micro-unit fuel toward combustion performance |
| title_full_unstemmed | Integrated preparation of Al-based energetic micro-unit fuel toward combustion performance |
| title_short | Integrated preparation of Al-based energetic micro-unit fuel toward combustion performance |
| title_sort | integrated preparation of al based energetic micro unit fuel toward combustion performance |
| topic | al powder energetic microunit combustion performance |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2022.000105 |
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