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Other TitleSynthesis, atomization, and combustion characteristics of phase stabilized ammonium nitrate
Author(jpn)和田, 祐典; 和田, 有司; 羽生, 宏人
Author(eng)Wada, Yusuke; Wada, Yuji; Habu, Hiroto
Author Affiliation(jpn)産業技術総合研究所安全科学研究部門; 産業技術総合研究所安全科学研究部門; 宇宙航空研究開発機構宇宙科学研究所
Author Affiliation(eng)Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST)(RISS); Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST)(RISS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
Issue Date2011-03-01
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA research and development memorandum
宇宙航空研究開発機構研究開発資料: 高エネルギー物質研究会研究成果報告書
Publication date2011-03-01
AbstractThe phase stabilization and atomization of ammonium nitrate (AN) were attempted as the application consideration of AN into the oxidizer for the solid rocket propellants, and the gas generants for automobile airbag systems. The phase stabilization of AN was brought to realization by synthesizing the eutectic salts of AN and potassium nitrate (KN). The atomization of phase stabilized ammonium nitrate (PSAN) was attempted by building the spray dryer system into the synthesis process of PSAN. The diameters of initial fine particles of synthesized PSAN became about 10-30 micrometers, and the solid phases between -20 C and 100 of fine PSAN were well stabilized. The linear burning rates of model samples consist of guanidine nitrate (GN), PSAN, and basic copper nitrate (BCN)were measured, and the combustion characteristics of GN/PSAN/BCN composition was investigated. The values of the pressure exponent of GN/PSAN/BCN compositions became larger (0.79-1.10) than those of GN/AN/BCN compositions (0.41-0.77).
固体ロケット推進薬酸化剤や自動車用エアバッグガス発生剤への硝酸アンモニウム(AN)の応用を目指し,ANの相安定化と微粒化が試みられた.ANの相安定化は,AN と硝酸カリウム(KN)からなる共晶塩を合成する事によって実現した.相安定化硝酸アンモニウム(PSAN)の微粒化は,PSANの合成プロセスにスプレードライヤによる乾燥過程を組み込むことによって検討された.合成されたPSANの一次粒子の直径はおよそ10-30micromとなり,また,微粒PSANの相状態は-20度Cから100度Cのあいだで安定化していることが確認された.硝酸グアニジン(GN),PSAN,塩基性硝酸銅(BCN)からなるモデル試料の線燃焼速度測定を実施し,GN/PSAN/BCN混合物の燃焼特性が調査された。GN/PSAN/BCN混合物の圧力指数は,0.79から1.10となり,GN/AN/BCN混合物の圧力指数(0.41-0.77)と比べて大きな値となった。
DescriptionOriginal contains color illustrations
形態: カラー図版あり
Keywordsammonium nitrate; phase stabilization; atomization; combustion
Document TypeTechnical Report
JAXA Category研究開発資料
Report NoJAXA-RM-10-015

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