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Point defects in B2 compounds
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0001-5031-919X
2001 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, Vol. 329, no 02-jan, 208-213 p.Article in journal (Refereed) Published
Abstract [en]

Point defects in B2 compounds are described with a model based on the formula (A,B,Va),(B,A,Va), and results are compared with previous results from two models based on combined defects and using the formulae (A,B), (B,A), and (A,Va)(1) (B,A)(1) The comparison is straight-forward close to the stoichiometric composition but not closer to the pure elements. Using the more general model, it is demonstrated that the fact that vacancies are the predominant defect in some B2 compounds with a small excess of B atoms depends primarily on interactions between next-nearest neighbours rather than on a high enthalpy of formation of the compound, as proposed earlier.

Place, publisher, year, edition, pages
2001. Vol. 329, no 02-jan, 208-213 p.
Keyword [en]
intermetallics, point defects, thermodynamic modelling, long-range order, intermetallic phases, thermodynamics, alloys
URN: urn:nbn:se:kth:diva-21057ISI: 000171818000034OAI: diva2:339754
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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