Year: 1996
Type: article
Abstract: The ZnSb ceramics, of which preparation has been difficult due to the peritectic reaction, have been successfully prepared by the pulverized and intermixed elements sintering (PIES) method. The ZnSb ceramics with a single phase and a high thermoelectric figure of merit were easily obtained by sintering at lower temperatures than the peritectic temperature of ZnSb. In order to improve the thermoelectric properties of ZnSb ceramics, Ag and Sn were doped in the ZnSb ceramics. The electrical conductivity of Ag- and Sn-doped ZnSb ceramics largely increased with an increase in the amount of Ag and Sn, resulting in improvement of the thermoelectric figure of merit. The hot-pressing process was also employed in the sintering process. The density of hot-pressed ZnSb ceramics exceeded 90% of the theoretical ZnSb density, and their thermoelectric figure of merit was expected to be -0.8×10-3K-1.
Authors: Tsuyoshi Koyanagi, Koji Adachi, Kengo Kishimoto, Kakuei Matsubara
Institutions: Yamaguchi University, Tokyo University of Science
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2516149083