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Elsevier, Scripta Materialia, 1(68), p. 75-78

DOI: 10.1016/j.scriptamat.2012.09.014

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Enhancement of the high-temperature thermoelectric performance of Bi2Ba2Co2Ox ceramics

Journal article published in 2013 by G. Constantinescu ORCID, Sh-H. Rasekh, M. A. Torres, M. A. Madre, J. C. Diez, A. Sotelo
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This paper is available in a repository.

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Abstract

Bi2Ba2Co2Ox thermoelectric ceramics were textured from the melt using the laser floating zone method, at a growth rate of 5 mm h−1. The microstructure showed good grain alignment with the growth axis. These microstructural features are reflected in the thermoelectric performance, with a significant increase in the power factor values, reaching ∼0.4 mW K−2 m−1 at 650 °C, much higher than the values typically obtained in these materials.