Articles tagged "oxidation"

The 16th European Microscopy Congress 2016
Environmental (S)TEM analysis of Fe nanoparticles under oxygen atmosphere
Leonardo Lari (1, 2), Robert Carpenter (1), Vlado Lazarov (1), Pratibha Gai (2, 1, 3), Ed Boyes (1, 2, 4)
1. Department of Physics, University of York, York, Royaume Uni 2. The York-JEOL Nanocentre, University of York, York, Royaume Uni 3. Department of Chemistry, University of York, york, Royaume Uni 4. Department of Electronics, University of York, York, Royaume Uni
Fe and Fe-oxide nanoparticles (NPs) have a number of promising potential applications in physical and medical sciences. These include magnetic storage devices, catalysis, sensing, contrast…
The 16th European Microscopy Congress 2016
In situ investigation of high temperature corrosion of Co-based alloys in the ESEM – the very first stages
Angelika Reichmann (1), Martin Weiser (2), Sannakaisa Virtanen (2), Peter Poelt (3)
1. Graz Centre for Electron Microscopy, Austrian Cooperative Research, Graz, Autriche 2. Institute for Surface Science and Corrosion (LKO), University of Erlangen-Nürnberg, Erlangen, Allemagne 3. Institute for Electron Microscopy and Nanoanalysis, NAWI Graz, Graz University of Technology, Graz, Autriche
In 2006 Sato et al. [1] discovered the existence of a ternary γ′-Co3 (Al, W) intermetallic phase with L12 structure in the system Co-Al-W, a…
The 16th European Microscopy Congress 2016
In situ environmental HRTEM study of the restructuration under reducing atmosphere of small oxidized silver-indium nanoparticles
Julien RAMADE (1), Cyril Langlois (2), Michel Pellarin (1), Laurent Piccolo (3), Emmanuel COTTANCIN (1)
1. Institut Lumière Matière, Université Claude Bernard, Lyon, France 2. MATEIS, INSA Lyon, Lyon, France 3. IRCE Lyon, CNRS, Lyon, France
In the form of alloyed or segregated structures, bimetallic nanoparticles (NPs) exhibit remarkable catalytic (activity, selectivity, stability) and optical (localized surface plasmon resonance, LSPR)…
The 16th European Microscopy Congress 2016
Surface Dynamics of Cu Oxidation
Judith Yang (1), Qing Zhu (1), Lianfeng Zou (2), Christopher Andolina (1), Penghao Xiao (3), Eric Stach (4), Graeme Henkelman (3), Guangwen Zhou (2), Wissam Abdo Saidi (5)
1. Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, Etats-Unis 2. Mechanical Engineering, SUNY Binghamton, Binghamton, NY, Etats-Unis 3. Chemistry, University of Texas, Austin, TX, Etats-Unis 4. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York, Etats-Unis 5. Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, Etats-Unis
Much is known about oxygen interaction with metal surfaces and about the macroscopic growth of thermodynamically stable oxides. At present, however, the nanoscale stages of…
The 16th European Microscopy Congress 2016
Examination of semiconducting properties of oxides in the vicinity of metal-oxide interfaces for selected alloys
Radovan Vanta (1), Sousan Abolhassani (1), M Dadras (2)
1. LNM/NES, Paul Scherrer Institut, Villigen, Suisse 2. SMN, CSEM, Neuchatel, Suisse
Radovan Vanta1, Sousan Abolhassani1, Shiv Ashish Kumar2, Massoud Dadras2, Adrienn Baris1, Guillaume Boetsch3, Harry Brandenberger4, Andreas Rummel5 1 Laboratory for Materials Behaviour, Paul Scherrer Institut,…
The 16th European Microscopy Congress 2016
Spectroscopy on Black Phosphorus exfoliated down to the monolayer
Etienne Gaufrès (1, 2), Alexandre Favron (2), Frédéric Fossard (1), Pierre Lévesque (2), Anne-Laurence Phaneuf-L'Heureux (3), Sébastien Francoeur (3), Richard Martel (2), Annick Loiseau (1)
1. Laboratoire d'Etude des Microstructures, CNRS - ONERA, Chatillon, France 2. RQMP, Université de Montréal, Montréal, Canada 3. RQMP, Ecole Polytechnique de Montréal, Montréal, Canada
Black Phosphorus (P(black)) is a 2D semiconductor characterized by a direct band gap associated to high carriers mobility. The crystal is composed by tetravalent P…
The 16th European Microscopy Congress 2016
Aluminum nanoflakes: relations between microstructure and reactivity.
Véronique MADIGOU (1), Christine LEROUX (1), Pierre-Henri ESPOSITO (2), Renaud DENOYEL (2), Marie-Vanessa COULET (2)
1. IM2NP UMR 7334, Université de Toulon, LA GARDE, France 2. MADIREL UMR 7246, Aix Marseille Université, Marseille, France
Aluminum powders are used as a component in propellant formulations, explosives and pyrotechnics [1]. Their reactive and propulsive properties are linked to the exothermic reaction…
The 16th European Microscopy Congress 2016
Characterization of Solution-Annealed and Thermally-Treated Alloy 600 Intergranular Oxidation using Advanced Analytical Electron Microscopy
giacomo bertali (1), Fabio Scenini (2), Grace Burke (1)
1. School of materials, University of Manchester, Manchester, Royaume Uni 2. School of materials, University of Manchester, Manchester, Royaume Uni
The susceptibility of Ni-Cr-Fe alloy (Alloy 600) to intergranular stress corrosion cracking (IGSCC) in light water reactor (LWR) primary water environment is well-known. However, SCC…
The 16th European Microscopy Congress 2016
TEM characterization of irradiated beryllium
Michael Klimenkov (1), Jan Hoffmann (1), Peter Kurinsky (1), Viacheslav Kuksenko (2), Pavel Vladimirov (1), Vladimir Chakin (1), Anton Möslang (1)
1. Institute for Applied Materials - Applied Materials Physics (IAM-AWP) , Karlsruhe Institute of Technology , Karlsruhe, Allemagne 2. Department of Materials, Oxford University, Oxford, Royaume Uni
It is suggested that beryllium will be used as a neutron multiplier material in the Helium-cooled Pebble Bed (HCPB) European concept of a breeding blanket…
The 16th European Microscopy Congress 2016
Oxidation of Carbon Nanotubes Using Environmental TEM and the Influence of the Imaging Electron Beam
Ai Leen Koh (1), Emily Gidcumb (2), Otto Zhou (2, 3), Robert Sinclair (4)
1. Stanford Nano Shared Facilities, Stanford University, Stanford, Etats-Unis 2. Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, North Carolina, Etats-Unis 3. Department of Physics and Astronomy, University of North Carolina at Chapel Hill, North Carolina, Etats-Unis 4. Department of Materials Science and Engineering, Stanford University, Stanford, Etats-Unis
Carbon nanotubes (CNTs) can be used as field emission electron sources in X-ray tubes for medical applications [1, 2]. In a laboratory setting, field emission…