Preparation of HMX/Al Composite Particles with “Surface Embedded and Inner Coated” Microstructure bySpray Coating and Its Applied Performance

doi:10.3969/j.issn.1000-1093.2021.08.007

Abstract

Abstract: In order to improve kinetics conditions of aluminum during detonation, HMX/Al composite particles were prepared by spray coating method, and aluminized explosives containing the particles were prepared. The morphologies and surface element composition of composite particles were characterized by scanning electron microscopy (SEM) and energy dispersive spectrum (EDS), and the chemistry structure was analyzed by infrared spectroscopy (IR). Explosion performance of HMX/Al composite-based aluminized explosive were estimated through the test of mechanical sensitivity, detonation heat, metal driving and explosion chamber. Results show that the optimized preparation conditions of “surface embedded and inner coated” microstructure are powdered aluminum with particle size of 13 μm without F2603 pre-coating and ester pre-cleaning. The connection of composite particles between HMX and Al is formed by non-bonding. The preparation process has no significant effect on impact sensitivity of composite particles, while the friction sensitivity of HMX/Al composite particles with “surface embedded and inner coated” microstructure is significantly reduced from 88% to 12%. Detonation heat, maximum speed of metal-driving flyer and afterburning maximum temperature of composite particles-based aluminized explosives are 5.5%, 7.3% and 6.4% higher than those of traditional samples, respectively. This indicates that the HMX/Al composite particles can be used to make the aluminum powder participate in detonation reaction in advance and improve its reaction completeness.

Key words: HMX/Alcompositeparticle, spraycoatingmethod, microstructure, reactioncompletenessofpowderedaluminum

CLC Number:

TQ564.3
TJ55

FENG Xiaojun， XUE Lexing， FENG Bo， PAN Wen. Preparation of HMX/Al Composite Particles with “Surface Embedded and Inner Coated” Microstructure bySpray Coating and Its Applied Performance[J]. Acta Armamentarii, 2021, 42(8): 1631-1637.

References

［1］ ZHI J, LI S F, ZHAO F Q, et al. Thermal behavior of HMX and metal powders of different grade[J]. Journal of Energetic Materials, 2002, 20(2):165-173.
[2] 陈朗, 张寿齐, 赵玉华. 不同铝粉尺寸含铝炸药加速金属能力的研究[J].爆炸与冲击, 1999, 19(3):250-256.
CHEN L, ZHANG S Q, ZHAO Y H. Study of the metal acceleration capacities of aluminized explosives with spherical aluminum particles of different diameter[J]. Explosion and Shock Waves, 1999,19(3):250-256. (in Chinese)
[3] JAYARAMAN K, ANAND K V, BHATT D S, et al. Production, characterization, and combustion of nanoaluminum in composite solid propellants[J]. Journal of Propulsion and Power, 2009, 25(2): 471-481.
[4] YE M Q,ZHANG S T, LIU S S, et al. Preparation and characterization of pyrotechnics binder-coated nano-aluminum composite particles[J]. Journal of Energetic Materials, 2017, 35(3): 300-313.
[5] LI Y R, REN H, YAN T, et al. Reactivity of fluororubber-modified aluminum in terms of heat transfer effect[J]. Journal of Thermal Analysis and Calorimetry, 2020, 142(2): 871-876.
[6] 闫涛, 任慧, 马爱娥, 等. 氟橡胶包覆层对纳米铝粉性能的影响研究[J]. 兵工学报, 2019, 40(8):1611-1617.
YAN T, REN H, MA A E, et al. Effect of fluororubber coating on the properties of nano-aluminum powders[J]. Acta Armamentarii, 2019, 40(8):1611-1617. (in Chinese)
[7] 王慧心, 任慧, 闫涛, 等. 聚乙烯醇原位包覆铝粉结构表征及活性铝含铝测定[J]. 兵工学报, 2019, 40(7): 1373-1380.
WANG H X, REN H, YAN T, et al. Micro-structure and active aluminum content of aluminum power in situ coated by polyvinyl alcohol[J].Acta Armamentarii, 2019, 40(7): 1373-1380. (in Chinese)
[8] HWANG J S, KIM C K, CHO W H, et al. Development of new thermobaric explosive composition using nickel coated aluminum powder[C]∥Proceedings of 38th International Annual Conference of ICT. Karlsruhe, German：ICT, 2008.
[9] ANDERSON P, BALAS W, NICOLICH S, et al. Development, optimization, and application of combined effects explosives[C]∥Proceedings of 2009 Insensitive Munitions & Energetic Materials Technology Symposium. Tucson, AZ, US: NDIA, 2009.
[10] SEHOENITZ M, WARD T S, DREIZIN E L. Fully dense nano-composite energetic powders prepared by arrested reactive milling[J]. Proceedings of the Combustion Institute, 2005, 30(2): 2071-2078．
[11] SEHOENITZ M, WARD T S, DREIZIN E L. Preparation of energetic metastable nano-composite materials by arrested reactive milling[C]∥Proceedings of Synthesis, Characterization and Properties of Energetic/Reactive Nanomaterials Symposium. Warrendale, PA, US: Materials Research Society, 2004．
[12] ELBASUNEY S, EL-SAYYAD G S, ISMAEL S, et al. Colloid thermite nanostructure: a novel high energy density material for enhanced explosive performance[J]. Journal of Inorganic and Organometallic Polymers and Materials, 2021, 31(6):559-565.
[13] YANG H, LIU Y, HUANG H, et al. Preparation and characterization of the Al/Fe₂O₃/RDX/NC nanocomposites by electrospray[J]. Journal of Thermal Analysis and Calorimetry, 2019,137(5): 1615-1620.
[14] ZHIGACH A N, LEIPUNSKII I O, PIVKINA A N, et al. Aluminum/HMX nanocomposites: synthesis, microstructure, and combustion[J]. Combustion, Explosion, and Shock Waves, 2015, 51(1):100-106.
[15] 孙业斌, 惠君明, 曹欣茂. 军用混合炸药[M]. 北京: 兵器工业出版社, 1995: 385-389.
SUN Y B, HUI J M, CAO X M. Military mixed explosive[M]. Beijing: Publishing House of Ordnance Industry, 1995: 385-389. (in Chinese)

第42卷第8期2021 年8月
兵工学报ACTA ARMAMENTARII
Vol.42No.8Aug.2021

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