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Field‐ion images of dilute solid solutions
Author(s) -
Ryan H. F.,
Suiter J.
Publication year - 1970
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1970.tb02253.x
Subject(s) - evaporation , ion , alloy , field (mathematics) , contrast (vision) , chemistry , materials science , chemical physics , analytical chemistry (journal) , crystallography , physics , optics , metallurgy , thermodynamics , mathematics , chromatography , organic chemistry , pure mathematics
SUMMARY Vacant‐site contrast observed in the field‐ion images of Pt‐Rh, Pt‐Au and Au‐Pd alloys is interpreted in terms of preferential evaporation of the solute atoms. Preferential retention of the solute atoms was observed in a Au‐Pt alloy. These observations conflict with predictions based on a theory of image formation proposed by Southworth & Ralph (1969).