Abstract 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.

中文翻译：

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Bi1-xSbx 低浓度 Bi1-xSbx 固溶体的渗流转变和物理性质

摘要 显微硬度 H、电导率 σ、电荷载流子迁移率 μH、塞贝克系数 S 和热电功率因数 P = S2σ 对纯 Sb (x = 1.0–0.975) 附近 Bi1-xSbx 固溶体组成的依赖性获得了。在 x = 0.9925-0.9875 的范围内，观察到 H 和 S 的异常减少以及 σ 和 μH 随着 Bi 浓度的增加而增加。对于所有合金，绘制了 H 对压头 G 载荷的依赖性。发现 x 小于 ~ 0.99 的样本和 x 超过 0.99 的样本的 H(G) 依赖性表现出不同的行为。所得结果的解释是基于我们假设存在从杂质不连续体到杂质连续体的渗透型相变，这种相变发生在任何固溶体中。