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Multiscale approach...
Multiscale approach to theoretical simulations of materials for nuclear energy applications : Fe-Cr and Zr-based alloys
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Abrikosov, I. A. (author)
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Ponomareva, A. V. (author)
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Barannikova, S. A. (author)
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Hellman, O. (author)
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Vekilova, O.Yu. (author)
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Simak, S. I. (author)
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- Ruban, Andrei V. (author)
- KTH,Tillämpad materialfysik
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(creator_code:org_t)
- 2013-01-23
- 2013
- English.
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In: Advances in materials for nuclear energy. - : Materials Research Society. - 9781605114910 ; , s. 3-14
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We review basic ideas behind state-of-the-art techniques for first-principles theoretical simulations of the phase stabilities and properties of alloys. We concentrate on methods that allow for an efficient treatment of compositional and thermal disorder effects. In particular, we present novel approach to evaluate free energy for strongly anharmonic systems. Theoretical tools are then employed in studies of two materials systems relevant for nuclear energy applications: Fe-Cr and Zr-based alloys. In particular, we investigate the effect of hydrostatic pressure and multicomponent alloying on the mixing enthalpy of Fe-Cr alloys, and show that in the ferromagnetic state both of them reduce the alloy stability at low Cr concentration. For Zr-Nb alloys, we demonstrate how microscopic parameters calculated from first-principles can be used in higher-level models.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Efficient treatment
- Energy applications
- Ferromagnetic state
- Microscopic parameter
- Multi-component alloying
- Multi-scale approaches
- State-of-the-art techniques
- Theoretical simulation
Publication and Content Type
- ref (subject category)
- kon (subject category)
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