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Radius dependence of solute concentration estimates of simulated ultrafine precipitates
Author(s) -
Serizawa Ai,
Miller Michael K.
Publication year - 2013
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.22285
Subject(s) - radius , precipitation , materials science , critical radius , analytical chemistry (journal) , chemistry , chromatography , physics , meteorology , spheres , computer security , astronomy , computer science
Estimates of the radii and solute concentrations of simulated microstructures containing ultrafine spherical precipitates were determined from isoconcentration surfaces and proximity histograms. The accuracy of the estimates of the solute concentrations and the radii of precipitates was found to depend on the size of precipitates. Optimized parameters for analyzing 0.5‐ to 2‐nm‐radius precipitates are proposed. The solute content of 0.5‐nm‐radius precipitates was not estimated correctly by this method. The accuracy of the estimates of the solute concentration and the radius of precipitates were primarily influenced by the solute concentrations of the precipitates. The ranges of error of the solute concentration in the precipitates, which are associated with the analytical limitations of the ultrafine precipitates, were determined, and the results indicated a limitation of the estimates. Microsc. Res. Tech. 76:1196–1203, 2013 . © 2013 Wiley Periodicals, Inc.