Anisotropic Layered High-Temperature Thermoelectric Materials Based on the Two-Phase CrSi_2–β-FeSi_2 System

摘要

The feasibility of synthesizing a wide spectrum of multiphase microstructurally ordered high-temperature thermoelectrics with highly anisotropic thermoelectric parameters is demonstrated with an aluminumdoped CrSi_2–β-FeSi_2 system the composition of which varies from Cr_(0.1)Fe_(0.9)Si_(2–x)Al_x to Cr_(0.9)Fe_(0.1)Si_(2–x)Al_x (x = 0.0–0.4). Doping of either phase (CrSi_2 and β-FeSi_2) is viewed as a promising way for synthesizing n- and p-type domains inside the same sample.