Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants
The main approach to improving the performance of aluminum-containing propellants is to promote the rupture of the oxide film on the surface of aluminum. The high melting point of the oxide film is the primary obstacle to the oxidation reaction of the internal aluminum. This study proposes the conce...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Fuel Processing Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378382024001425 |
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| author | Lu Liu Geng Xu Zhan Wen Guoqiang He Peijin Liu Wen Ao |
| author_facet | Lu Liu Geng Xu Zhan Wen Guoqiang He Peijin Liu Wen Ao |
| author_sort | Lu Liu |
| collection | DOAJ |
| description | The main approach to improving the performance of aluminum-containing propellants is to promote the rupture of the oxide film on the surface of aluminum. The high melting point of the oxide film is the primary obstacle to the oxidation reaction of the internal aluminum. This study proposes the concept of using chlorides to regulate the performance of propellants by leveraging the low melting point of aluminum chloride. Firstly, all four chlorides effectively promoted the oxidation of aluminum. Secondly, the combustion intensity of the powders, from highest to lowest, was: chlorinated polyvinyl chloride -modified aluminum powder, praseodymium chloride-modified aluminum powder, sodium chloride-modified aluminum powder, micron aluminum powder, and iron chloride-modified aluminum powder. Only chlorinated polyvinyl chloride significantly reduced the ignition delay time. Regarding the burning rate of propellants, iron chloride-modified propellants exhibited the best performance, while sodium chloride propellants showed a reduction in the burning rate. In terms of propellant agglomeration characteristics, sodium chloride aggravated agglomeration, whereas the other three inhibited agglomeration. Among them, iron chloride and praseodymium chloride reduced the average particle size of the condensed combustion products by 23.5 % and 43.0 %, respectively. The experimental results of this study provided a new approach for the performance optimization of solid propellants. |
| format | Article |
| id | doaj-art-d1f957db769344e39a2c8d93f529e986 |
| institution | Kabale University |
| issn | 0378-3820 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Fuel Processing Technology |
| spelling | doaj-art-d1f957db769344e39a2c8d93f529e9862025-01-15T04:11:32ZengElsevierFuel Processing Technology0378-38202025-03-01267108172Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellantsLu Liu0Geng Xu1Zhan Wen2Guoqiang He3Peijin Liu4Wen Ao5National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, ChinaNational Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, ChinaNational Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, ChinaNational Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China; Corresponding author.National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China; Ningbo Institute of Northwestern Polytechnical University, Ningbo 315000, ChinaNational Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, ChinaThe main approach to improving the performance of aluminum-containing propellants is to promote the rupture of the oxide film on the surface of aluminum. The high melting point of the oxide film is the primary obstacle to the oxidation reaction of the internal aluminum. This study proposes the concept of using chlorides to regulate the performance of propellants by leveraging the low melting point of aluminum chloride. Firstly, all four chlorides effectively promoted the oxidation of aluminum. Secondly, the combustion intensity of the powders, from highest to lowest, was: chlorinated polyvinyl chloride -modified aluminum powder, praseodymium chloride-modified aluminum powder, sodium chloride-modified aluminum powder, micron aluminum powder, and iron chloride-modified aluminum powder. Only chlorinated polyvinyl chloride significantly reduced the ignition delay time. Regarding the burning rate of propellants, iron chloride-modified propellants exhibited the best performance, while sodium chloride propellants showed a reduction in the burning rate. In terms of propellant agglomeration characteristics, sodium chloride aggravated agglomeration, whereas the other three inhibited agglomeration. Among them, iron chloride and praseodymium chloride reduced the average particle size of the condensed combustion products by 23.5 % and 43.0 %, respectively. The experimental results of this study provided a new approach for the performance optimization of solid propellants.http://www.sciencedirect.com/science/article/pii/S0378382024001425ChloridePropellantAluminumCombustionAgglomeration |
| spellingShingle | Lu Liu Geng Xu Zhan Wen Guoqiang He Peijin Liu Wen Ao Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants Fuel Processing Technology Chloride Propellant Aluminum Combustion Agglomeration |
| title | Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants |
| title_full | Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants |
| title_fullStr | Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants |
| title_full_unstemmed | Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants |
| title_short | Experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants |
| title_sort | experimental studies on the influence of chlorides on the combustion and agglomeration characteristics of solid propellants |
| topic | Chloride Propellant Aluminum Combustion Agglomeration |
| url | http://www.sciencedirect.com/science/article/pii/S0378382024001425 |
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