As a thermoelectric material, Bi_0.3Sb_1.7Te_3.0+x (x = 0‒0.05) was fabricated by mechanical alloying using yttria-stabilized zirconia (YSZ) ceramic balls and vessels, followed by hot pressing. The effects of the added tellurium on the thermoelectric properties of Bi_0.3Sb_1.7Te_3.0 fabricated with YSZ milling media were investigated. All sintered samples were isotropic and showed p-type conduction. The tellurium solid-solubility limit for Bi_0.3Sb_1.7Te_3.0 was determined to be x = 0.01 by differential thermal analysis (DTA). The solid-solubility limit of the sample fabricated using YSZ was narrower than that of the congener prepared with Si₃N₄ balls and stainless-steel metal vessels. Among the evaluated compositions, the Bi_0.3Sb_1.7Te_3.01 sintered disk had the highest dimensionless figure of merit, ZT = 1.30, at room temperature. This value was superior to that of Bi_0.3Sb_1.7Te_3.0+x fabricated using metal vessels. Thus, selection of the milling media affected the optimum doping amount and maximum ZT.

作为热电材料，Bi _0.3 Sb _1.7 Te _{3.0+ x} ( x  = 0-0.05) 使用氧化钇稳定氧化锆 (YSZ) 陶瓷球和容器通过机械合金化，然后热压制成。研究了添加碲对YSZ研磨介质制备的Bi _0.3 Sb _1.7 Te _3.0热电性能的影响。所有烧结样品都是各向同性的，并显示出p型传导。Bi _0.3 Sb _1.7 Te _3.0的碲固溶度极限确定为x = 0.01 通过差热分析 (DTA)。使用 YSZ 制备的样品的固溶度极限比使用 Si ₃ N ₄球和不锈钢金属容器制备的同类物更窄。在评估的组合物中，Bi _0.3 Sb _1.7 Te _3.01烧结盘 在室温下具有最高的无量纲品质因数，ZT = 1.30。该值优于使用金属容器制造的 Bi _0.3 Sb _1.7 Te _{3.0+ x 的值}。因此，研磨介质的选择影响最佳掺杂量和最大ZT。