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Article Dans Une Revue ACS Applied Nano Materials Année : 2020

Integration of Gold Nanoparticles to Modulate the Ignitability of Nanothermite Films

Résumé

Thermite multilayered films composed of alternating thin layers of metal/oxidizers have various uses in microelectromechanical systems (MEMS), microelectronics and materials bonding applications. Recently, applied research especially on the micro-initiator applications has engendered an urgent need to improve ignitability without changing the layering, reactant spacing that both affect the combustion characteristics. This work describes an innovative nano-engineering solution to reduce the energy barriers for mass transport making it possible to substantially lower ignition energy of CuO/Al reactive multilayers without manipulating the fuel and oxide layers thickness. To that end, gold nanoparticles exhibiting high thermal diffusivity properties are in-situ grown uniformly inside the first CuO layer to produce localized hot-spots

Domaines

Matériaux
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Dates et versions

hal-02490682 , version 1 (25-02-2020)

Identifiants

Citer

Baptiste Julien, Jérémy Cure, Ludovic Salvagnac, Claudie Josse, Alain Estève, et al.. Integration of Gold Nanoparticles to Modulate the Ignitability of Nanothermite Films. ACS Applied Nano Materials, 2020, 3 (3), pp.2562-2572. ⟨10.1021/acsanm.9b02619⟩. ⟨hal-02490682⟩
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