title: Building Materials from Colloidal Nanocrystal Arrays: Evolution of Structure, Composition, and Mechanical Properties upon the Removal of Ligands by O2Plasma.
abstract: The mechanical properties of colloidal nanocrystal superlattices can be tailored through exposure to low-pressure plasma. The elastic modulus and hardness of the ligand-free 3.7 nm ZrO2superlattice are found to be similar to bulk yttria-stabilized tetragonal polycrystals of the same relative density but without any doping.
authors.affiliation: Department of Materials Science and Engineering, Iowa State University of Science and Technology, 2220 Hoover Hall, Ames, IA, 50011, USA.
authors.forename: Santosh
authors.initials: S
authors.lastname: Shaw
authors.affiliation: Ion Beam Centre, University of Surrey, Guildford, GU2 7XH, UK.
authors.forename: Julien L
authors.initials: JL
authors.lastname: Colaux
authors.affiliation: Nanomechanics, Inc., 105 Meco Lane, Oak Ridge, TN, 37830, USA.
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Hay
authors.affiliation: Department of Physics, Kenyon College, Gambier, OH, 43022, USA.
authors.forename: Frank C
authors.initials: FC
authors.lastname: Peiris
authors.affiliation: Department of Materials Science and Engineering, Iowa State University of Science and Technology, 2220 Hoover Hall, Ames, IA, 50011, USA. lcademar@iastate.edu.|Department of Chemical and Biological Engineering, Iowa State University of Science and Technology, Ames, IA, 50011, USA. lcademar@iastate.edu.|Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011, USA. lcademar@iastate.edu.
authors.forename: Ludovico
authors.initials: L
authors.lastname: Cademartiri
keywords: colloidal nanocrystals; crystalline porous solids; high surface area; mechanical properties; zirconia