- Treffer 1 von 1
In situ studies of mass transport in liquid alloys by means of neutron radiography
- 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 Al2O3 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 Al68.6Cu13.8Ag17.6 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.
Autor*innen: | F. Kargl, M. Engelhardt, F. Yang, H. Weis, P. Schmakat, B. Schillinger, Axel GriescheORCiD, A. Meyer |
---|---|
Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Journal of physics / Condensed matter |
Jahr der Erstveröffentlichung: | 2011 |
Verlag: | IOP Publ. Ltd. |
Verlagsort: | Bristol |
Jahrgang/Band: | 23 |
Ausgabe/Heft: | 25 |
Erste Seite: | 254201-1 |
Letzte Seite: | 254201-8 |
Freie Schlagwörter: | Diffusion; Liquid alloys; Neutron radiography; Shear cell |
DOI: | 10.1088/0953-8984/23/25/254201 |
ISSN: | 0953-8984 |
ISSN: | 1361-648X |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 20.06.2011 |