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Morphology of WC gr...
Morphology of WC grains in WC-Co alloys: Theoretical determination of grain shape
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Christensen, Mikael, 1973 (författare)
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- Wahnström, Göran, 1955 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Lay, S. (författare)
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visa fler...
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Allibert, C.H. (författare)
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visa färre...
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(creator_code:org_t)
- 2007
- 2007
- Engelska.
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Ingår i: Acta Mater.. ; 55, s. 1515-
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- A theoretical approach to predict grain morphology from interface energies computed using density-functional theory is presented and applied to the WC–Co system. The dependences of the WC grain shape on the geometrical misfit at the Co/WC metal–ceramic interface, and on the carbon chemical potential are investigated. The WC grains are predicted to be hexagonal when the interfaces are assumed to be coherent, and change to a truncated triangular shape where the long prism side lengths are five times longer than the short side lengths, when the interfaces are assumed to be incoherent.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Microstructure
- Interfaces
- Cermets
- Ab initio calculation
Publikations- och innehållstyp
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- ref (ämneskategori)
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