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西安交通大学能源与动力工程学院,710049,西安
湖北航天化学技术研究所,441001,湖北襄阳
陆军工程大学弹药保障与安全性评估国家级实验教学示范中心,050000,石家庄
Received:26 September 2025,
Published:10 May 2026
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YANG Meng, HUANG Wanting, FANG Ming, et al. Effects of Ammonium Perchlorate and RDX on the Performance of Hydroxylammonium Nitrate-Based Electrically Controlled Solid Propellants[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 91-101.
YANG Meng, HUANG Wanting, FANG Ming, et al. Effects of Ammonium Perchlorate and RDX on the Performance of Hydroxylammonium Nitrate-Based Electrically Controlled Solid Propellants[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 91-101. DOI: 10.7652/xjtuxb202605009.
为提升硝酸羟胺(HAN)基电控固体推进剂(ECSP)的能量、导电及点火燃烧特性,以高氯酸铵(AP)和黑索金(RDX)为添加剂,制备不同电控固体推进剂。采用NASA CEA软件计算比较了4种HAN基ECSP配方的理论比冲和燃烧温度;采用交流阻抗法和同步热分析仪分别研究了4种样品的电导率和热分解过程,并在200 V电压下开展燃烧实验,获得其点火延迟时间和燃烧速度。结果表明:加入AP或RDX后,推进剂样品的理论比冲和燃烧温度均有所增加,同时放热量增加且热分解反应活化能降低;在电导率方面,添加AP使推进剂电导率增大,而添加RDX则导致电导率下降,且随RDX含量增加电导率进一步降低;在燃烧性能上,基础配方点火延迟时间为4.95 s,燃烧速度为0.35 mm/s;添加质量分数为10% AP后点火延迟时间缩短、燃烧速度增加;添加质量分数为10% RDX的样品点火提前,燃烧速度略有提升;但添加质量分数为20% RDX的样品点火困难,燃烧速度降至最低。此外,随着电压的增加,4种样品的点火延迟时间缩短,燃烧速度增加。
To enhance the energy
conductivity
and ignition/combustion characteristics of hydroxylammonium nitrate (HAN) -based electrically controlled solid propellants (ECSPs)
different ECSP formulations are prepared using ammonium perchlorate (AP) and research department explosive (RDX) as additives. NASA CEA is employed to calculate and compare the theoretical specific impulse and combustion temperature of four HAN-based ECSP formulations. The electrical conductivity of the four samples was studied using AC impedance spectroscopy
while their thermal decomposition processes were investigated using synchronous thermal analysis. Combustion experiments were conducted under a voltage of 200 V to determine the ignition delay time and burning rate. The results indicate that the addition of AP or RDX increases both the theoretical specific impulse and combustion temperature of the propellant samples
while also raising the heat release and reducing the activation energy of the thermal decomposition reaction. In terms of electrical conductivity
the addition of AP increases the conductivity of the propellant
whereas the addition of RDX reduces it
with conductivity further decreasing as the RDX content increases. Regarding combustion performance
the baseline formulation exhibits an ignition delay time of 4.95 s and a burning rate of 0.35 mm/s. The addition of 10% AP shortens the ignition delay time and increases the burning rate. The sample with 10% RDX shows earlier ignition and a slight improvement in burning rate. However
the sample with 20% RDX experiences ignition difficulties
and its burning rate drops to the lowest value. Furthermore
as the voltage increases
the ignition delay time of all four samples decreases
and the burning rate increases.
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