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Type Krug, ME; Dunand, DC; Seidman, DN
  Publication Composition Profiles within Al3Li and Al3Sc/Al3Li Nanoscale Precipitates in Aluminum Volume Journal Article
Pages 2008
  Abstract Applied Physics Letters  
  Corporate Author App. Phys. Let.  
Publisher 92  
Editor
  Summary Language 124107-1 - 124107-3 Series Editor Al; Sc; Li; Aluminum; Scandium; Lithium; Core-shell Precipitates; Al-Sc  
Abbreviated Series Title An Al–11.3Li–0.11Sc (at. %) alloy was double-aged to induce first Alpha'-Al3Sc and then delta'-Al3Li precipitates. Atom-probe tomography revealed both single-phase delta'-precipitates and core-shell alpha'/delta'-precipitates (with respective average radii of 16 and 27 nm, and respective volume fractions of 12 and 9%) conferring a high strength to the alloy. Although the delta'-shells contain little Sc (~0.027 at. %), the alpha'-cores have a high Li content, with an average composition of Al0.72(Sc0.17Li0.11). The Li concentrations within the delta'-phase and the Li interfacial excess at the delta'/alpha'-interface both exhibit wide precipitate-to-precipitate variations.
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no NU @ m-krug @ 10263
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