PDF Point defect approach to enhance the thermoelectric ... Springer
The mixtures were ballmilled continuously for 10 h using a high energy ball mill (SPEX 8000 M). The obtained powder was sintered into a dense disk at 923 K for 2 min by SPS under a pressure of 60 MPa. Characterization The crystal structures were studied by Xray diffraction (XRD, Rigaku D/max 2500 PC). The microstructures