3D Printed hybrid rocket fuels with μAl core-shell particles coated with polyvinylidene fluoride and polydopamine: enhanced combustion characteristics DOI Creative Commons
Qihang Chen, Xiaolong Fu, Weitao Yang

et al.

Defence Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

Exploring the hygroscopic behavior of highly energetic oxidizer ammonium dinitramide (ADN) at different temperatures and humidities using an innovative hygroscopic modeling DOI Creative Commons
Qiangqiang Lu, Ben Liu,

Zhifang Xie

et al.

Defence Technology, Journal Year: 2024, Volume and Issue: unknown

Published: June 1, 2024

Ammonium dinitramide (ADN) is a new type of green energetic oxidizer with excellent energy density and low pollution combustion characteristics. However, the strong hygroscopicity has significant impact on its practical application. To assist in research moisture-proof modification ADN materials, an innovative hygroscopic modeling approach was proposed to evaluate at various temperatures humidities. By investigating diffusion coefficient water molecules molecular dynamics processes, visual insight into process gained. Furthermore, analyzing non-covalent interactions between molecules, could be evaluated qualitatively quantitatively. The analysis revealed that electrostatic forces play dominant role adsorption by ADN, whereas van der Waals impede it. As whole, simulation results show presents following law: At ranging from 273 K 373 relative humidity (RH) 10% 100%, generally shows increasing trend rise temperature based three simulations. According non-hygroscopic point (298 K, 52% RH) obtained experiment literature, range for can depicted when less than or equal 17%. This study provide effective strategies screening anti-hygroscopic modified materials ADN.

Language: Английский

Citations

5
Efficient construction of core/double-shelled structured AP@nano-graphite@F2603 energetic microcapsules with low sensitivity and hygroscopicity DOI
Jiahao Yu,

Yong Kou,

Lei Xiao

et al.

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In this work, AP-based energetic microcapsules with low sensitivity and hygroscopicity were prepared using a two-step continuous coating method, which demonstrated significant potential for applications in the field of propellants.

Language: Английский

Citations

0
Fabrication of Nickel Oxide Doped Carbon Nitride Nanosheets as Catalysts for Cleaner Combustion of Ammonium Perchlorate DOI
Gladiya Mani,

P. Radhakrishnan Nair,

Suresh Mathew

et al.

Next research., Journal Year: 2025, Volume and Issue: unknown, P. 100203 - 100203

Published: Feb. 1, 2025

Language: Английский

Citations

0
A novel dynamic simulation method for investigating the hygroscopicity of Ammonium perchlorate DOI
Qiangqiang Lu,

Yong Kou,

Yiwen Hu

et al.

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 404, P. 124956 - 124956

Published: May 10, 2024

Language: Английский

Citations

2
Combustion Characteristics of Vat-Photopolymerized Fuels with a Spiral Star Port for Hybrid Propulsion DOI
Qihang Chen, Xiaolong Fu, Weitao Yang

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(21), P. 11196 - 11205

Published: May 14, 2024

Despite hybrid rocket motors offering distinct advantages over solid or liquid motors, their low regression rate and insufficient combustion efficiency remain significantly unimproved. This study focuses on the effects of helix lead distribution vat-polymerized fuel grains with a spiral star port for rocket. Both experimental numerical investigations were conducted to characteristics three-dimensional (3D) print grains. Spiral varying leads 60, 90, 120 mm fabricated using light-curing 3D printing technology. A simulation model was developed obtain temperature distribution, species mass efficiency. Furthermore, firing tests performed two-dimensional radial test stand measure rate. Digital image processing computed tomography images used determine Simulation results indicated that grain helps improve compared those seen round tube straight With an increase in axial distance, flame zone gradually shrinks, smaller lead, faster shrinkage. At flow 1.50 g/s oxygen, is higher than conventional tubular grains, increases decrease lead. finding expected solve problem fuels pore-shaped prepared by method.

Language: Английский

Citations

1
Modeling and analysis of hygroscopicity of energetic materials under various temperature and relative humidity conditions: A case study on ammonium nitrate DOI
Qiangqiang Lu, Hongyu Yang, Yiwen Hu

et al.

Powder Technology, Journal Year: 2024, Volume and Issue: 445, P. 120096 - 120096

Published: July 17, 2024

Language: Английский

Citations

0
NiCoCr 2 O 4 as a potential catalyst for the thermal decomposition of ammonium nitrate: a kinetic investigation DOI
Pragnesh N. Dave, Ruksana Sirach

Chemical Engineering Communications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 10

Published: Sept. 25, 2024

Language: Английский

Citations

0
Facile Preparation of Ultrafine Porous Copper Powders for Accelerating the Thermal Decomposition of Ammonium Perchlorate DOI Open Access
Dayong Li,

Yuling Shao,

Shengquan Chang

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(23), P. 5728 - 5728

Published: Nov. 23, 2024

In this study, we innovatively proposed a facile method to synthesize ultrafine porous copper (Cu) powders under mild conditions by utilizing the reduction properties of reduced iron (Fe) powders. The results showed that Cu

Language: Английский

Citations

0
3D Printed hybrid rocket fuels with μAl core-shell particles coated with polyvinylidene fluoride and polydopamine: enhanced combustion characteristics DOI Creative Commons
Qihang Chen, Xiaolong Fu, Weitao Yang

et al.

Defence Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

Citations

0