TITLE

Surface adsorption effects on the lattice expansion of copper nanocrystals

AUTHOR(S)
Champion, Yannick; Bernard, Frédéric; Millot, Nadine; Perriat, Pascal
PUB. DATE
June 2005
SOURCE
Applied Physics Letters;6/6/2005, Vol. 86 Issue 23, p231914
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Lattice expansion in nanocrystalline copper due to size and surface effect is reported. The lattice parameter is measured by in situ x-ray diffraction at various temperatures from -173 °C to 150 °C. The experiments are carried out on nanocrystalline copper powders having an average particle size of 40 nm. The size effect on the lattice expansion is examined regarding a modified Laplace law, where a surface stress is considered instead of the usual scalar surface energy. The results are discussed taking into account oxidation state and the sorption of molecular species at the nanoparticles surface.
ACCESSION #
17328432

 

Related Articles

  • Bulk cohesive energy and surface tension from the size-dependent evaporation study of nanoparticles. Nanda, K. K. // Applied Physics Letters;7/11/2005, Vol. 87 Issue 2, p021909 

    In this letter, it is shown that the bulk cohesive energy (EB) and bulk surface tension (γ) can be deduced from the size-dependent evaporation (SDE) study of free nanoparticles. The surface tension of nanoparticles (γn) is obtained by analyzing SDE data on the basis of the Kelvin equation,...

  • Adhesion forces between wetted solid surfaces. Charlaix, Elisabeth; Crassous, Jérôme // Journal of Chemical Physics;5/8/2005, Vol. 122 Issue 18, p184701 

    We investigate in this paper the influence of wetting films on the adhesion forces between macroscopic solid surfaces connected by a liquid bridge. We show that the capillary forces are dependent on the interactions governing the wetting layers, and that those interactions may be determined from...

  • Model of a nanoparticle in the theory of inhomogeneous medium. Rekhviashvili, S.; Kishtikova, E.; Rozenberg, B. // Technical Physics;Dec2009, Vol. 54 Issue 12, p1731 

    Basic thermodynamic characteristics (density distribution profile near the surface of a nanoparticle, adsorption, and interfacial surface tension) of the structureless nanoparticle-vapor/liquid equilibrium system are calculated using a unified approach. A joint solution of the basic equation in...

  • A mean field approach for computing solid-liquid surface tension for nanoscale interfaces. Chi-cheng Chiu; Ranatunga, R. J. K. Udayana; Flores, David Torres; Pérez, D. Vladimir; Moore, Preston B.; Shinoda, Wataru; Nielsen, Steven O. // Journal of Chemical Physics;2/7/2010, Vol. 132 Issue 5, p054706 

    The physical properties of a liquid in contact with a solid are largely determined by the solid-liquid surface tension. This is especially true for nanoscale systems with high surface area to volume ratios. While experimental techniques can only measure surface tension indirectly for nanoscale...

  • ON THE APPLICABILITY OF ANALYTICAL MODELS TO PREDICT HUGONIOT OF NANO-SIZED POWDER COMPACTS. Chengda Dai; Eakins, Daniel; Thadhani, Naresh // AIP Conference Proceedings;12/12/2007, Vol. 955 Issue 1, p35 

    We examine the applicability of two analytical models proposed respectively by McQueen et al and Wu-Jing, which are representative of isochoric and isobaric approaches for predicting the Hugoniot of nano-sized powder compacts obtained from experimental measurements. Model calculations show...

  • Rusanov's Linear Formula for the Surface Tension of Small Objects. Samsonov, V.M.; Bazulev, A.N.; Sdobnyakov, N.Yu. // Doklady Physical Chemistry;Mar2003, Vol. 389 Issue 1-3, p83 

    Discusses I.A. Rusanov's linear formula for the surface tension of small objects. Excess free energy of small objects; Relationship betweel surface tension and size of the objects; Density functional methods.

  • Surface Chemistry of Nanodiamonds. Kulakova, I.I. // Physics of the Solid State;Apr2004, Vol. 46 Issue 4, p636 

    The experimental data available in the literature and the results obtained by the author in research into the structure of nanodiamonds and the physicochemical and chemical properties of their surface are generalized. An account is given of the problems concerning the chemical state and...

  • Two-particle microrheology at oil-water interfaces. Chih-yuan Wu; Yanmei Song; Dai, Lenore L. // Applied Physics Letters;10/5/2009, Vol. 95 Issue 14, p144104 

    We have explored and validated two-particle (2P) microrheology at polydimethylsiloxane (oil)-water interfaces using confocal laser scanning microscopy. The loss and storage moduli of the oil-water interfaces as a function of frequency are quantified using different tracer particles. In contrast...

  • Wet insulation evolves to meet subsea flowline performance demands. Hunter, Rob // Offshore;Oct2008, Vol. 68 Issue 10, p122 

    The article reports on wet insulation which evolves and meets subsea flowline performance demands. It discusses rope produced using the new method has been supplied to the Perdido project in the Gulf of Mexico and also will be delivered to a drilling rig working off Angola. It reports that The...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics