Journal article
In-situ transmission electron microscopy determination of solid-state diffusion in the aluminum-nickel system
Journal of solid state chemistry, v 276(C), pp 114-121
Aug 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Using in-situ techniques, which couple energy dispersive spectroscopy mapping with a heated transmission electron microscope stage, solid-state diffusion of Ni-Al is studied in the temperature range 623–723 K with characteristic diffusion lengths of 1–100 nm. When the concentration profiles are analyzed using the Sauer-Freise method, and evaluated for 50 atomic percent Ni, the diffusion coefficients follow an Arrhenius temperature dependence: DNi→Al=8.2x10−9exp(−111kJ/RT)m2/s. Additionally, the formation of Al-rich intermetallic phases (Al3Ni & Al3Ni2) is shown to occur within heating durations of a second at the studied temperatures.
EDS maps showing Ni-Al interdiffusion in the temperature range 623–723 K and the temperature dependence of diffusivity determined for 480–1140 K from this study and several previous studies. [Display omitted]
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Details
- Title
- In-situ transmission electron microscopy determination of solid-state diffusion in the aluminum-nickel system
- Creators
- Joshua M. Pauls - University of Notre DameChristopher E. Shuck - University of Notre DameArda Genç - Thermo Fisher ScientificSergei Rouvimov - University of Notre DameAlexander S. Mukasyan - University of Notre Dame
- Publication Details
- Journal of solid state chemistry, v 276(C), pp 114-121
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000473372400015
- Scopus ID
- 2-s2.0-85065411167
- Other Identifier
- 991019296796004721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Chemistry, Inorganic & Nuclear
- Chemistry, Physical