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Electrophoretic Deposition and Characterization of an Al/CuO Energetic Film with a Porous Hollow Microsphere Structure


In this work, an Al/CuO energetic film with a porous hollow structure was obtained by electrophoretic deposition (EPD) from an aqueous solution at low field strengths of 20 V cm−2 instead of from organic solvents. CuO porous hollow microspheres (PHMSs) were prepared by a one-step hydrothermal method. The shape of the CuO PHMSs was very uniform at the macroscale with a size of 5 μm. To codeposit the species during the EPD process, the nano-Al particles and CuO PHMSs were modified with acrylic acid and citric acid, respectively. The nano-Al particles were deposited on the surface or in the interior of the CuO PHMSs by an electrical field and formed Al/CuO PHMS composites. The chemical composition, morphology, heat release and combustion of the as-prepared composite coating films were analyzed by XRD, FESEM, FT-IR, EDS, TG-DSC and with a high-speed camera. The heat release of the Al/CuO porous thermite reached 3804 J/g with excellent combustion performance due to the novel microstructure and appropriate modifications.

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This work was funded by the National Natural Science Foundation of China (Nos. 21905032 and 61271059), the Natural Science Foundation Project of Chongqing (No. 2010BB4246), the Science and Technology Development Project of Chongqing (No. CSTC2012ggyyjs90007) and Chongqing Graduate Scientific Research Innovation Project (No. CXB14220).

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Correspondence to Yanjun Yin.

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Yin, Y., Li, X. Electrophoretic Deposition and Characterization of an Al/CuO Energetic Film with a Porous Hollow Microsphere Structure. J. of Materi Eng and Perform (2020).

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  • coatings
  • CuO porous hollow microsphere
  • electrophoretic deposition (EPD)
  • energy
  • inorganic
  • surface modification