Insight on the Interplay between Synthesis Conditions and Thermoelectric Properties of α-MgAgSb.

ABSTRACT: α-MgAgSb is a very promising thermoelectric material with excellent thermoelectric properties between room temperature and 300 °C, a range where few other thermoelectric materials show good performance. Previous reports rely on a two-step ball-milling process and/or time-consuming annealing. Aiming for a faster and scalable fabrication route, herein, we investigated other potential synthesis routes and their impact on the thermoelectric properties of α-MgAgSb. We started from a gas-atomized MgAg precursor and employed ball-milling only in the final mixing step. Direct comparison of high energy ball-milling and planetary ball-milling revealed that high energy ball milling already induced formation of MgAgSb, while planetary ball milling did not. This had a strong impact on the microstructur

SUBMITTER: Camut J 

PROVIDER: S-EPMC6600979 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature