| Numéro |
J. Phys. Colloques
Volume 49, Numéro C6, Novembre 1988
35th International Field Emission Symposium / 35éme Symposium International d'Emission de Champ
|
|
|---|---|---|
| Page(s) | C6-415 - C6-420 | |
| DOI | https://doi.org/10.1051/jphyscol:1988671 | |
35th International Field Emission Symposium / 35éme Symposium International d'Emission de Champ
J. Phys. Colloques 49 (1988) C6-415-C6-420
DOI: 10.1051/jphyscol:1988671
Institut für Metallphysik, Universität Göttingen, Hospitalstrasse 3-5, D-3400 Göttingen and Sonderforschungsbereich 126, Göttingen/Clausthal, F.R.G.
J. Phys. Colloques 49 (1988) C6-415-C6-420
DOI: 10.1051/jphyscol:1988671
EVALUATION OF ATOM PROBE CONCENTRATION PROFILES BY AUTOCORRELATION ANALYSIS
M. OEHRING et L.v. ALVENSLEBENInstitut für Metallphysik, Universität Göttingen, Hospitalstrasse 3-5, D-3400 Göttingen and Sonderforschungsbereich 126, Göttingen/Clausthal, F.R.G.
Abstract
Autocorrelation analysis is a useful tool to evaluate AP concentration profiles because it provides direct spatial information about concentration fluctuations in the profile. With the help of a computer program that simulates an AP experiment for an alloy with randomly distributed spherical precipitates, we studied the interpretation and evaluation of the autocorrelation coefficient. By varying the decomposition parameters we tested the reliability of microstructural information obtained from autocorrelation analysis.