中北大学学报（自然科学版）2025，Vol.46Issue(3)：285-292,8.DOI:10.62756/jnuc.issn.1673-3193.2024.07.0014
多孔硅复合含能材料的制备及其燃烧性能研究
Preparation of Porous Silica Composite Energetic Materials and Study of Combustion Properties
摘要
Abstract
The combustion patterns of porous silicon composite energetic materials in different environ-ments and their constant volume combustion pressures were studied.Silicon particles with a particle size of 30 μm were used as raw materials,and porous silicon powder with pore structure was prepared by chemical etching method.The surface structure morphology of the porous silicon powder was physically characterized by scanning electron microscopy,and the porosity of the porous silicon was calculated by using the weight loss method.Sodium perchlorate was introduced as an oxidizing agent,and the bonding morphology and exothermic magnitude of porous silicon composite energetic materials formed with differ-ent additions of sodium perchlorate were compared.The combustion performance of the porous silica com-posite energetic materials was investigated at different ignition temperatures and in a closed environment.The results show that due to the isotropic nature of silicon atoms,pore structures with pore diameters ranging from hundreds of nanometers to micrometers grow on the surface of silicon particles after chemical corrosion,and the porosity of porous silicon can reach 71.3%.The amount of oxidizing agent will directly affect the reaction exotherm of composite energetic materials.When the ignition temperature of porous silicon composite energetic materials is lower than the decomposition temperature of sodium per-chlorate,it will affect the exotherm of the energetic materials combustion.The combustion process of the porous silicon composite energetic material was divided into two deflagration stages by the product SiO2.The constant volume combustion pressure test of 150 mg composite energetic materials was carried out in a closed pressure test vessel of 8.01 cm3 designed and assembled by ourselves,and the results show that the pressure release pattern of the energetic materials is divided into two phases in line with the results of the combustion phenomenon,and in the first phase,the pressure rise at a maximum of 6.4 MPa/s,and after the ignition for 600ms,the release of the pressure amounts to 1.35 MPa.关键词
多孔硅/含能材料/燃烧性能Key words
porous silicon/energetic materials/combustion performance分类
化学工程引用本文复制引用
臧清高,刘迎彬,胡晓艳,范志强..多孔硅复合含能材料的制备及其燃烧性能研究[J].中北大学学报（自然科学版）,2025,46(3):285-292,8.基金项目
国家自然科学基金(12072326) （12072326）
省部共建动态测试技术国家重点实验室开放研究基金(2022-SYSJJ-06) （2022-SYSJJ-06）
