Building Energetic Material from Novel Salix Leaf‐like <scp>CuO</scp> and Nano‐Al through Electrophoretic Deposition

Yin, Yuebang; Li, Xueming

doi:10.1002/bkcs.10983

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…The heat output of the CuO-NPs/Al-NPs thermite (904 J·g –1 ) is much lower than that of the Al/CuO composite thermite films at 10 min deposition, in spite of CuO-NPs and Al-NPs that were mixed in the stoichiometric ratio. Moreover, as shown in Table , the largest heat output of Al/CuO composite thermite film is 2009 J·g –1 , which is much higher than those reported in the literature for Al/CuO systems. − This further demonstrates that the excellent energy output performance of the Al/CuO composite thermite film could be ascribed to their micro/nanowires structure, which may provide more space for Al-NPs integration and enable uniform distribution of reactants. This structure thus guarantees the compact interfacial contact and mass transmission between fuel and oxidizer.…”

Section: Results and Discussionmentioning

confidence: 72%

Electrochemical Synthesis of Al/CuO Thermite Films on Copper Substrates

Zhang

et al. 2019

Ind. Eng. Chem. Res.

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The CuO micro/nanowires film has been prepared successfully on a Cu substrate using a combination of an electrochemical anodization and an annealing treatment. Its morphology and phase composition have been systemically examined. The vertically aligned CuO micro/nanowires can form a skeleton to facilitate the embedment of Al nanoparticles so that their interfacial contacts will expand significantly to increase the total energy release. The CuO micro/nanowires can be used to synthesize the Al/CuO composite thermite film using an electrophoretic deposition of Al nanoparticles. The thermal analyses reveal that the Al/CuO composite thermite film can release a heat output of 2009 J•g −1 at 10 min deposition. This work develops an effective protocol for the synthesis of the Al/CuO composite thermite film, which is highly compatible with microelectromechanical systems to realize functional energetic chips.

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Section: Results and Discussionmentioning

confidence: 72%

Electrochemical Synthesis of Al/CuO Thermite Films on Copper Substrates

Zhang

et al. 2019

Ind. Eng. Chem. Res.

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“…In a higher-magnification view in Figure d, the nano-Al spheres are embedded inside the skeleton of CuO compactly, which can increase the contact area between the nano-Al and CuO. The size and morphology of CuO and nano-Al do not change after EPD evidently, proving that EPD is a nondestructive process for the deposition of target particles …”

Section: Resultsmentioning

confidence: 95%

“…The size and morphology of CuO and nano-Al do not change after EPD evidently, proving that EPD is a nondestructive process for the deposition of target particles. 34 It is generally known that NFs 117 is a kind of fluoropolymer with good film-forming ability. In the work presented here, a NFs 117 solution was used to post-treat Al/ CuO thermite films with the goal of improving the adhesive force and energy release.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Simultaneously Altering the Energy Release and Promoting the Adhesive Force of an Electrophoretic Energetic Film with a Fluoropolymer

Yin

Dong

et al. 2022

Langmuir

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Energetic coatings have attracted a great deal of interest with respect to their compatibility and high energy and power density. However, their preparation by effective and inexpensive methods remains a challenge. In this work, electrophoretic deposition was investigated for the deposition of an Al/CuO thermite coating as a typical facile effective and controllable method. Given the poor adhesion of the deposited film and the native inert Al2O3 shell on Al limiting energy output, further treatment was conducted by soaking in a Nafion solution, which not only acted as a fluoropolymer binder but also introduced a strong F oxidizer. It is interesting to note that the adhesion level of Al/CuO films was improved greatly from 1B to 4B, which was attributed to Nafion organic network film formation, like a fishing net covering the loose particles in the film. Combustion and energy release were analyzed using a high-speed camera and a differential scanning calorimeter. A combustion rate of ≤3.3 m/s and a heat release of 2429 J/g for Al/NFs/CuO are far superior to those of pristine Al/CuO (1.3 m/s and 841 J/g, respectively). The results show that the excellent combustion and heat release properties of the energetic film system are facilitated by the good combustion-supporting properties of organic molecules and the increase in the film density after organic treatment. The prepared Al/NFs/CuO film was also employed as ignition material to fire B-KNO3 explosive successfully. This study provides a new way to prepare organic–inorganic hybrid energetic films, simultaneously altering the energy release and enhancing the adhesive force. In addition, the Al/NFs/CuO coating also showed considerable potential as an ignition material in microignitors.

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Electrophoretic deposition of hybrid organic-inorganic PTFE/Al/CuO energetic film

Yin

Cheng

et al. 2023

Defence Technology

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Building Energetic Material from Novel Salix Leaf‐like CuO and Nano‐Al through Electrophoretic Deposition

Cited by 4 publications

References 21 publications

Electrochemical Synthesis of Al/CuO Thermite Films on Copper Substrates

Electrochemical Synthesis of Al/CuO Thermite Films on Copper Substrates

Simultaneously Altering the Energy Release and Promoting the Adhesive Force of an Electrophoretic Energetic Film with a Fluoropolymer

Electrophoretic deposition of hybrid organic-inorganic PTFE/Al/CuO energetic film

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