WFRF:(Johansson Sven 1981)
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First-principles derived complexion diagrams for phase boundaries in doped cemented carbides
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- Johansson, Sven, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wahnström, Göran, 1955 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
- (creator_code:org_t)
- Elsevier BV, 2016
- 2016
- English.
- In: Current Opinion in Solid State and Materials Science. - : Elsevier BV. - 1359-0286. ; 20:5, s. 299-307
- Research review (peer-reviewed)
Abstract
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- This article reviews a method for calculating an equilibrium interfacial phase diagram depicting regions of stability for different interface structures as function of temperature and chemical potentials. Density functional theory (DFT) is used for interfacial energies, Monte Carlo simulations together with cluster expansions based on DFT results for obtaining configurational free energies, and CALPHAD-type modeling for describing the thermodynamic properties of the adjoining bulk phases. An explicit case, vanadium doped cemented carbides, is chosen to illustrate the progress in the research field and the interfacial diagram, a complexion diagram, for the phase boundary WC(0001)/Co is constructed as function of temperature and chemical potentials.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- grain growth
- complexion
- doping
- interfacial phase diagram
- cemented carbides
- thermocalc
- density functional theory
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