▎ 摘　　要

Bismuth Antimony, Bi0.85Sb0.15 is promising thermoelectric material due to their greater adverse impacts on heat-to-electrical energy conversion. In this study, Bi-Sb nanocomposite with different graphene (Gr) contents (0.25, 0.5, 0.75 and 1.0 wt%) were prepared by spark plasma extrusion (SPE). The process combines between spark plasma sintering technique (SPS), which promotes faster sintering rates, and extrusion as plastic deformation, in one step using conventional sintering apparatus. A homogeneous rearrangement grains with texture orientation was revealed with slight Gr content, originate from consolidation-deformation process. Additionally, conductive Gr network observed around the boundaries and inside the matrix. The SPE process enlarged the grain size and the consistently texture degree was significantly upraised, which were advantageous for the carrier mobility and electrical conductivity. Seebeck coefficient was natural, however thermal conductivity increased with Gr additions, stick with conductivity behavior. Consequently, high thermoelectric performance belong to 0.75 wt% Gr content was obtained, power factor of 4.08 x 10(-3) W m(-1) K-2 and ZT of 0.52. This work significantly describes the influence of texture engineering on thermoelectric properties and provide perspectives apportionment nanocomposite strategies as diverse sources. (C) 2021 Elsevier B.V. All rights reserved.