fig7
Figure 7. (A) Temperature-dependent figure of merit ZT of the hot-pressed BST+HEAx (x = 0, 0.1, 0.5, and 1.0 vol%) samples for the Pa- and Pe-direction; (B) ZT values as a function of the HEA concentrations at 300 and 350 K; (C) maximum ZTavg. of the BST+HEAx samples at the Thot = 425K and Tcold = 300 K; (D) average ZT with the literature values[37,41,45-51]. BST: Bi0.4Sb1.6Te3; HEA: high entropy alloy.
