Title
FCC surface precipitation in Cu-Zn-Al after low angle <tex>$GA^{+}$</tex> ion irradiation FCC surface precipitation in Cu-Zn-Al after low angle <tex>$GA^{+}$</tex> ion irradiation
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Sendai ,
Subject
Physics
Source (journal)
Materials transactions / Japan Institute of Metals. - Sendai, 2001
Volume/pages
51(2010) :12 , p. 2177-2180
ISSN
1345-9678
ISI
000287390300009
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The precipitation of a disordered FCC surface structure after low angle Ga+ ion irradiation during focused ion beam thinning of a B2 Cu-Zn-Al alloy with e/a=1.48 is reported. Conventional as well as high-resolution transmission electron microscopy techniques reveal FCC layers on both sides of the thinned sample. The occurrence of this structure is attributed to disordering and dezincification of the alloy resulting from the sputtering process during the irradiation. Changes in crystallographic sample orientation with respect to the incoming ion beam do not have a significant effect on the appearance of the FCC surface structure.
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