Percolation transition and physical properties of Bi1-xSbx solid solutions at low Bi concentration
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Дата
2020
DOI
doi.org/10.1016/j.jpcs.2020.109431
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Elsevier Ltd
Анотація
The dependences of microhardness H, electrical conductivity σ, charge carrier mobility μH, the Seebeck coefficient S, and thermoelectric power factor P = S2σ on the composition of Bi1-xSbx solid solutions in the vicinity of pure Sb (x = 1.0–0.975) were obtained. In the range of x = 0.9925–0.9875, an anomalous decrease in H and S and increase in σ and μH with increasing Bi concentration were observed. For all the alloys, the dependences of H on the load on an indenter G were plotted. It was found that the H(G) dependences for samples with x smaller than ~ 0.99 and for samples with x exceeding 0.99, exhibit different behavior. The results obtained are interpreted on the basis of our assumption about the existence of a percolation-type phase transition from impurity discontinuum to impurity continuum that occurs in any solid solution.
Опис
Ключові слова
alloys, mechanical properties, transport properties, phase transition, critical phenomena
Бібліографічний опис
Percolation transition and physical properties of Bi1-xSbx solid solutions at low Bi concentration [Electronic resource] / E. O. Rogacheva [et al.] // Journal of Physics and Chemistry of Solids. – Electronic text data. – 2020. – Vol. 143 – P. 109431. – URL: https://www.sciencedirect.com/science/article/abs/pii/S0022369719311163?via%3Dihub#abs0010, (date of application 31.01.2023).