ملخص
The origins of the S-shaped entropy of mixing and order-disorder transformation in Cd-Na liquid alloys have been investigated within a first-principle approach of a pseudo-potential perturbation scheme with the Gibbs-Bogoliubov variation technique. We find that the deepening of the structure part of the entropy around the stoichiometric composition (c Na ∼ 0:33) is responsible for the S-shaped entropy and suggests the existence of short-range order in the liquid state. The role of the local-field correction function, G(q), of conduction electrons on the entropy of mixing is examined. The impact of G(q) on partial structure factors is more visible towards low q(q → 0) than at higher q.
اللغة الأصلية | English |
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الصفحات (من إلى) | 382-387 |
عدد الصفحات | 6 |
دورية | Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques |
مستوى الصوت | 97 |
رقم الإصدار | 4 |
حالة النشر | Published - أبريل 2006 |
ASJC Scopus subject areas
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