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Atomic‐Scale Characterization of Aluminum‐Based Multishell Nanoparticles Created by Solid‐State Synthesis
Author(s) -
Monachon Christian,
Dunand David C.,
Seidman David N.
Publication year - 2010
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201000325
Subject(s) - atom probe , nanoparticle , materials science , transmission electron microscopy , characterization (materials science) , precipitation , atomic units , aluminium , nanoscopic scale , atom (system on chip) , matrix (chemical analysis) , nanotechnology , chemical engineering , analytical chemistry (journal) , metallurgy , composite material , chemistry , physics , chromatography , quantum mechanics , meteorology , computer science , engineering , embedded system
Core/double‐shell nanoparticles are produced by solid‐state precipitation in an aluminum matrix and characterized by transmission electron microscopy and atom‐probe tomography. By choosing three solute elements (Yb, Sc, Li) with substantially disparate diffusivities and by judiciously selecting aging temperatures to precipitate each element sequentially, nanoparticles are formed with three chemically distinct concentric Al3(Yb,Sc,Li) phases with radii of 1.6, 3.4, and 13.4 nm.