CAJ | 학술논문

用差示扫描量热仪(DSC)研究了镁基储氢材料(Mg_2NiH_4,Mg_2Cu-H和MgH_2)对高氯酸铵(AP)及AP/Al/HTPB复合固体推进剂热分解性能的影响.结果表明,含量5%的镁基储氢材料对AP热分解过程具有明显的催化促进作用.含量1.3%的镁基储氢材料可以降低AP/Al/HTPB复合固体推进剂热分解过程的热分解温度,使分解热明显增加,表现出显著的增强促进作用.燃速测定结果表明,在8 MPa下,含量1.3%的Mg_2NiH_4,Mg_2Cu-H和MgH_2可以分别使AP/Al/HTPB复合固体推进剂的燃速提高3.5%、14.4%和13.9%.镁基储氢材料对AP和AP/Al/HTPB复合固体推进剂热分解的作用效果与其含氢量有关,MgH2的含氢量大,作用效果好.镁基储氢材料主要通过催化AP/Al/HTPB复合固体推进剂中AP的热分解,表现出对AP/Al/HTPB复合固体推进剂热分解具有较好的催化效果.
용차시소묘량열의(DSC)연구료미기저경재료(Mg_2NiH_4,Mg_2Cu-H화MgH_2)대고록산안(AP)급AP/Al/HTPB복합고체추진제열분해성능적영향.결과표명,함량5%적미기저경재료대AP열분해과정구유명현적최화촉진작용.함량1.3%적미기저경재료가이강저AP/Al/HTPB복합고체추진제열분해과정적열분해온도,사분해열명현증가,표현출현저적증강촉진작용.연속측정결과표명,재8 MPa하,함량1.3%적Mg_2NiH_4,Mg_2Cu-H화MgH_2가이분별사AP/Al/HTPB복합고체추진제적연속제고3.5%、14.4%화13.9%.미기저경재료대AP화AP/Al/HTPB복합고체추진제열분해적작용효과여기함경량유관,MgH2적함경량대,작용효과호.미기저경재료주요통과최화AP/Al/HTPB복합고체추진제중AP적열분해,표현출대AP/Al/HTPB복합고체추진제열분해구유교호적최화효과.
The thermal decomposition behaviors of ammonium perchlorate( AP) and AP/Al/HTPB composite solid propellant in the presence of magnesium based hydrogen storage materials ( Mg_2NiH_4 ,Mg_2Cu-H and MgH_2)were studied by DSC. The results show that 5% magnesium based hydrogen storage materials has obvious catalytic effect on the thermal decomposition of AP, and 1.3% magnesium based hydrogen storage materials obviously decreases the thermal decomposition temperature and increases heat release of AP/Al/HTPB composite propellant. The burning rates of AP/Al/HTPB composite solid propellant (8 MPa) are increased by 3.5% ,14.4% and 13.9% respectively with addition of 1.3% Mg_2NiH_4 ,Mg_2Cu-H and MgH_2. There is a clear relationship between hydrogen content of magnesium based hydrogen storage materials and its effect, and MgH_2 shows obvious effect among magnesium based hydrogen storage materials due to its large hydrogen content. By catalyzing the thermal decomposition of AP, magnesium based hydrogen storage materials shows good catalytic effect on thermal decomposition of AP/Al/HTPB composite solid propellant.