Abstract
Perovskite-type Ca1−2xDyxYbxMnO3 (0≤x≤0.10) ceramics were synthesized by solid state reaction. Microstructures were characterized and thermoelectric properties were evaluated between 300K and 1100K. The samples obtained in this work have high relative densities with compact grains. The electrical resistivity shows a typical metallic conductivity behavior, and decreases with substitution. The Seebeck coefficients are negative, indicating n-type conduction, and the largest value is obtained −181μV/K at x=0.02. The highest power factor 415μW/(K2m) and the highest figure of merit 0.27 are both obtained for x=0.02 sample, and the ZT is about five times as much as un-doped CaMnO3 sample.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
