含能材料2026，Vol.34Issue(4)：399-408,10.DOI:10.11943/CJEM2026096
高能球磨制备B@Mo复合粉体及其对NEPE推进剂燃烧的调控
Preparation of B@Mo Composite Powders by Mechanical Alloying and its Regulation on Combustion Performance of NEPE Propellants
摘要
Abstract
B@Mo composite powders with different Mo contents were prepared via mechanical alloying,thereby effectively ad-dressing the poor processability of boron in composite solid propellants.The morphology,composition,thermal oxidation be-havior,and combustion performance of the composite powders were characterized by SEM,XRD,TG-DSC and calorific value measurement.The combustion-promoting effect of Mo on boron particles and the combustion performance of NEPE propellants incorporated with B10Mo were systematically investigated.The results demonstrate that Mo exhibits a superior combustion-promoting effect on boron compared to Fe,Bi,Cr,and Ni.The B@Mo composite powders have an iron impurity content of no more than 0.6%and a median particle size(D50)ranging from 0.80 to 0.87 μm.In terms of thermal oxidation,the introduction of Mo reduces the initial oxidation temperature of boron from approximately 500℃to 450℃,accompanied by a forward shift of the exothermic peak.The combustion heat of B10Mo is 41.02 MJ·kg-1,corresponding to a combustion efficien-cy of 80.6%,which are significantly higher than that of raw boron powder(15.35 MJ·kg-1,27.4%).During the combustion of B@Mo composite powders,Mo is preferentially oxidized to MoO3,which can inhibit the formation of a dense B2O3 layer on the boron surface and act as an oxygen carrier to accelerate boron oxidation.The incorporation of B10Mo into the NEPE propellant formulation causes the pressure exponent to decreases from 0.76 to 0.59 within the pressure range of 10～16 MPa,and the burn-ing rate is significantly enhanced.The findings highlight the practical application potential of boron-based fuels in regulating the combustion performance of NEPE propellants.关键词
推进剂/硼钼复合燃料/高能球磨/促燃作用Key words
propellants/boron-molybdenum composite fuel/mechanical alloying/combustion-promoting effect分类
军事科技引用本文复制引用
王宇琨,吕弈天,余金龙,杨文进,吴烨,宋江伟,张军旗..高能球磨制备B@Mo复合粉体及其对NEPE推进剂燃烧的调控[J].含能材料,2026,34(4):399-408,10.基金项目
航天化学能源全国重点实验室基金(NKLACP520251B17)Open Research Fund Program of National Key Laboratory of Aerospace Chemical Power(No.NKLACP520251B17) （NKLACP520251B17）
