title: Controlling Material Reactivity Using Architecture.
abstract: 3D-printing methods are used to generate reactive material architectures. Several geometric parameters are observed to influence the resultant flame propagation velocity, indicating that the architecture can be utilized to control reactivity. Two different architectures, channels and hurdles, are generated, and thin films of thermite are deposited onto the surface. The architecture offers an additional route to control, at will, the energy release rate in reactive composite materials.
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
authors.forename: Kyle T
authors.initials: KT
authors.lastname: Sullivan
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhu
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
authors.forename: Eric B
authors.initials: EB
authors.lastname: Duoss
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
authors.forename: Alexander E
authors.initials: AE
authors.lastname: Gash
authors.affiliation: School of Engineering and Applied Sciences and Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, 02138, USA.
authors.forename: David B
authors.initials: DB
authors.lastname: Kolesky
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
authors.forename: Joshua D
authors.initials: JD
authors.lastname: Kuntz
authors.affiliation: School of Engineering and Applied Sciences and Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, 02138, USA.
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Lewis
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Spadaccini
mesh_terms: D007281:Ink; D053768:Metal Nanoparticles / Q000737:chemistry; D008839:Microelectrodes; D066330:Printing, Three-Dimensional; D012834:Silver / Q000737:chemistry
chemical_list: D012834:Silver
keywords: 3D printing; advanced manufacturing; architected design; reactive materials; thermites