Document Detail

Clustering and local magnification effects in atom probe tomography: a statistical approach.
MedLine Citation:
PMID:  20849680     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Local magnification effects and trajectory overlaps related to the presence of a second phase (clusters) are key problems and still open issues in the assessment of quantitative composition data in three-dimensional atom probe tomography (APT) particularly for tiny solute-enriched clusters. A model based on the distribution of distance of first nearest neighbor atoms has been developed to exhibit the variations in the apparent atomic density in reconstructed volumes and to correct compositions that are biased by local magnification effects. This model was applied to both simulated APT reconstructions and real experimental data and shows an excellent agreement with the expected composition of clusters.
Thomas Philippe; Maria Gruber; François Vurpillot; D Blavette
Publication Detail:
Type:  Journal Article     Date:  2010-09-20
Journal Detail:
Title:  Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada     Volume:  16     ISSN:  1435-8115     ISO Abbreviation:  Microsc. Microanal.     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-09-24     Completed Date:  2011-01-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9712707     Medline TA:  Microsc Microanal     Country:  United States    
Other Details:
Languages:  eng     Pagination:  643-8     Citation Subset:  -    
Université de Rouen, GPM, UMR CNRS 6634, BP 12, Av de l'Université, 76801 Saint Etienne du Rouvray, France.
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