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Type Karnesky, Richard A.; Sudbrack, Chantal K.; Seidman, David N.
  Publication Best-Fit Ellipsoids of Atom-Probe Tomographic Data to Study Coalescence of [gamma]' (L1[sub:2]) Precipitates in Ni-Al-Cr Volume Journal Article
Pages 2007
  Abstract Scripta Materialia  
  Corporate Author  
Publisher 57  
Editor 4
  Summary Language 353-356 Series Editor Best-fit ellipsoid; Atom-probe tomography; Coarsening; Nickel alloys  
Abbreviated Series Title (up) An algorithm is presented to fit precipitates in atom probe tomographic data sets as equivalent ellipsoids. Unlike previous techniques, which measure only the radius of gyration, these ellipsoids retain the moments of inertia and principle axes of the original precipitate, preserving crystallographic orientational information. The algorithm is applied to study interconnected γ'-precipitates (L12) in the γ-matrix (FCC) of a Ni-Al-Cr alloy. The precipitates are found to coagulate along <110>-type directions.
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no NU @ karnesky @ 9601
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