title: Enhancing the Reactivity of Al/CuO Nanolaminates by Cu Incorporation at the Interfaces.
abstract: In situ deposition of a thin (∼5 nm) layer of copper between Al and CuO layers is shown to increase the overall nanolaminate material reactivity. A combination of transmission electron microscopy imaging, in situ infrared spectroscopy, low energy ion scattering measurements, and first-principles calculations reveals that copper spontaneously diffuses into aluminum layers (substantially less in CuO layers). The formation of an interfacial Al:Cu alloy with melting temperature lower than pure Al metal is responsible for the enhanced reactivity, opening a route to controlling the stochiometry of the aluminum layer and increasing the reactivity of the nanoenergetic multilayer systems in general.
authors.affiliation: †LAAS-CNRS, 7 Avenue du colonel Roche, F-31077 Toulouse, France.|⊥UPS, INSA, INP, ISAE, LAAS, Université de Toulouse, F-31062 Toulouse, France.
authors.forename: Lorena
authors.initials: L
authors.lastname: Marín
authors.affiliation: #Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, Texas 75080, United States.
authors.forename: Charith E
authors.initials: CE
authors.lastname: Nanayakkara
authors.affiliation: #Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, Texas 75080, United States.
authors.forename: Jean-Francois
authors.initials: JF
authors.lastname: Veyan
authors.affiliation: ‡CEMES-CNRS, 29, Rue Jeanne Marvig, F-31055 Toulouse, France.|⊥UPS, INSA, INP, ISAE, LAAS, Université de Toulouse, F-31062 Toulouse, France.
authors.forename: Bénédicte
authors.initials: B
authors.lastname: Warot-Fonrose
authors.affiliation: ‡CEMES-CNRS, 29, Rue Jeanne Marvig, F-31055 Toulouse, France.|⊥UPS, INSA, INP, ISAE, LAAS, Université de Toulouse, F-31062 Toulouse, France.
authors.forename: Sébastien
authors.initials: S
authors.lastname: Joulie
authors.affiliation: †LAAS-CNRS, 7 Avenue du colonel Roche, F-31077 Toulouse, France.|⊥UPS, INSA, INP, ISAE, LAAS, Université de Toulouse, F-31062 Toulouse, France.
authors.forename: Alain
authors.initials: A
authors.lastname: Estève
authors.affiliation: §CIRIMAT-CNRS, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France.|⊥UPS, INSA, INP, ISAE, LAAS, Université de Toulouse, F-31062 Toulouse, France.
authors.forename: Christophe
authors.initials: C
authors.lastname: Tenailleau
authors.affiliation: #Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, Texas 75080, United States.
authors.forename: Yves J
authors.initials: YJ
authors.lastname: Chabal
authors.affiliation: †LAAS-CNRS, 7 Avenue du colonel Roche, F-31077 Toulouse, France.|⊥UPS, INSA, INP, ISAE, LAAS, Université de Toulouse, F-31062 Toulouse, France.
authors.forename: Carole
authors.initials: C
authors.lastname: Rossi
keywords: Al; Cu; Cu enriched multilayers; CuO; intermixing; nanoenergetic materials; nanothermite