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- Fernandes, P. B. (author)
Thermodynamic modeling of the Nb-Si system
- Article/chapterEnglish2002
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- 2002
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- LIBRIS-ID:oai:DiVA.org:kth-22066
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-22066URI
- https://doi.org/10.1016/S0966-9795(02)00125-5DOI
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- Language:English
- Summary in:English
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- QC 20100525
- Optimized coefficients of the Gibbs free energy expression for each stable phase of the binary Nb-Si have been obtained, using the Thermo-Calc program for this purpose. The Nb3Si, alphaNb(5)Si(3), NbSi2 and Diamond (Si) have been modeled as stoichiometric phases and the liquid L, BCC (Nb) and the betaNb(5)Si(3) phases as solutions, with the excess term described using the Redlich-Kister formalism. The Si solubility in the betaNb(5)Si(3) phase has been modeled according to two possibilities: (i) Si substituting for Nb and (ii) vacancies in the Nb positions. The calculated diagrams compare well with the experimental information taken from the literature.
Subject headings and genre
- silicides various
- phase diagram
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- Coelho, G. C. (author)
- Ferreira, F. (author)
- Nunes, C. A. (author)
- Sundman, BoKTH,Materialvetenskap(Swepub:kth)u1q5l5sh (author)
- KTHMaterialvetenskap (creator_code:org_t)
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- In:Intermetallics (Barking)10:10, s. 993-9990966-97951879-0216
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