Development of New Nanostructured Energetic Composites Based on Silicon Substrate

基於硅基底的新型納米結構含能複合物的研發

Student thesis: Doctoral Thesis

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Award date28 Aug 2017

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Abstract

Nanoenergetic composites, which consist of nanoscale oxidizers and fuels, have been continuously studied due to their unique properties in ignition and combustion characteristics, energy density, sensitivity and stability that benefit from larger surface area and shorter diffusion distance, leading to diverse promising applications in both military and civilian fields. Compared with nano-powder mixtures, nanostructure energetic composites exhibit a better performance that caused by the further enhanced interfacial contact between oxidizer and fuel materials as well as improved ingredient distribution. Instead of loading or assembling individual nanoenergetic composites with target devices, nanostructured energetic composites "growing" from the supported substrate allow a relatively easy integration with microelectromechanical systems (MEMS), and greatly benefit the realization of functional nanoenergetics-on-a-chip.
Several types of nanostructured energetic composites integrated with silicon substrate are studied in this dissertation, including MnO2/Al composites that are composed of MnO2 nanosheets with root-embedded Al, 3D MnO2/Al/fluorocarbon core/shell nanoenergetic composites arrays supported by silicon wires, and CuO/Co3O4/Al dual-core/shell nanostructured energetics. Moreover, CuO/Al core/shell energetic composites integrated with explosives are investigated. Besides the successful integration of nanoenergetic composites with silicon substrate, promising energy properties of these nanostructured energetic composites are achieved, such as low onset temperature, high heat of reaction, hydrophobicity, and long-term storage stability, demonstrating great potential for practical applications. 

    Research areas

  • Nanostructured energetic composites, Silicon supported, Energy release , Hydrophobic surface, Long-term storage stability