STUDIES ON BORON/ALUMINUM DODECABORIDE (AlB12)-BASED NOVEL IGNITER COMPOSITION

被引：1
|
作者：
Rawal, Sukeshni [1 ]
Das, Manasa Kumar [1 ]
Tripathi, Anurag [1 ]
Khanna, Pawan Kumar [2 ]
Kakade, Seema Dilip [1 ]
机构：
[1] High Energy Mat Res Lab, Pune 411021, Maharashtra, India
[2] Def Inst Adv Technol, Pune 411025, Maharashtra, India
来源：
INTERNATIONAL JOURNAL OF ENERGETIC MATERIALS AND CHEMICAL PROPULSION | 2018年 / 17卷 / 02期
关键词：
igniters; igniter compositions; aluminum dodecaboride; ballistic properties; calorimetric value (cal-val);
D O I：
10.1615/IntJEnergeticMaterialsChemProp.2018026957
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The igniter is an indispensable part of a rocket propulsion system in which a boron/potassium nitrate-based pyrotechnic composition is commonly employed. In this study, the effect of aluminum dodecaboride (AlB12), has been investigated by sequentially replacing 25%, 50%, 75%, and 100% of boron with AlB12 in the boron/potassium nitrate/plasticized ethyl cellulose igniter composition. The composition having 50% boron replaced with AlB12 exhibited enhanced calorimetric value and flame temperature. The composition also exhibited 21% and 8% reduction in rise time and ignition delay, respectively. Furthermore, the replacement of boron by AlB12 does not reduce the impact, friction, and spark sensitivities, which make it a potential fuel for future igniter compositions.
引用
收藏
页码：125 / 135
页数：11
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