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In situ studies of mass transport in liquid alloys by means of neutron radiography

Kargl, F and Engelhardt, M and Yang, F and Weis, H and Schmakat, P and Schillinger, B and Griesche, A and Meyer, A (2011) In situ studies of mass transport in liquid alloys by means of neutron radiography. Journal of Physics - Condensed Matter, 23 (254201). Institute of Physics. DOI: 10.1088/0953-8984/23/25/254201.

Full text not available from this repository.

Official URL: http://iopscience.iop.org/0953-8984/23/25/254201/

Abstract

When in situ techniques became available in recent years this led to a breakthrough in accurately determining diffusion coefficients for liquid alloys. Here we discuss how neutron radiography can be used to measure chemical diffusion in a ternary AlCuAg alloy. Neutron radiography hereby gives complementary information to x-ray radiography used for measuring chemical diffusion and to quasielastic neutron scattering used mainly for determining self-diffusion. A novel Al2 O3 based furnace that enables one to study diffusion processes by means of neutron radiography is discussed. A chemical diffusion coefficient of Ag against Al around the eutectic composition Al68.6 Cu13.8 Ag17.6 at.% was obtained. It is demonstrated that the in situ technique of neutron radiography is a powerful means to study mass transport properties in situ in binary and ternary alloys that show poor x-ray contrast.

Document Type:Article
Title:In situ studies of mass transport in liquid alloys by means of neutron radiography
Authors:
AuthorsInstitution or Email of Authors
Kargl, FInstitut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, Germany
Engelhardt, MInstitut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, Germany
Yang, FInstitut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, Germany
Weis, HInstitut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, Germany
Schmakat, PPhysik Department E21, Technische Universität München, 85747 Garching, Germany
Schillinger, BForschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, 85747 Garching, Germany
Griesche, ABundesanstalt für Materialforschung und -prüfung, 12205 Berlin, Germany
Meyer, AInstitut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, Germany
Date:8 June 2011
Journal or Publication Title:Journal of Physics - Condensed Matter
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:23
DOI:10.1088/0953-8984/23/25/254201
Publisher:Institute of Physics
Status:Published
Keywords:neutron radiography, mass transport, liquid metals
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignement
DLR - Research theme (Project):R -- no assignement
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Dr Florian Kargl
Deposited On:25 Aug 2011 11:05
Last Modified:07 Feb 2013 20:14

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