Work

Influence of thermal cycles on thermoelectric uni-leg modules made of Ca3Co4O9/Ca0.95Sm0.05MnO3 oxides

Year: 2014

Type: article

Abstract: This paper presents an analysis of the thermoelectric properties of the thermo-elements p-Ca3Co4O9 and n-Ca0.95Sm0.05MnO3 and the diffusion phenomena at the interfaces according to thermal cycle (1, 3 and 7 days at 850 °C). The results show that diffusion at the interfaces is almost nil and is therefore unlikely to be responsible for the poor performance of the modules. The thermoelectric properties of p-Ca3Co4O9 are strongly degraded with the number of thermal cycles, while those of n-Ca0.95Sm0.05MnO3 are not affected.

Source: Journal of Taibah University for Science

DOI: 10.1016/j.jtusci.2014.05.003

Authors: Jérôme Dikwa, Pierre Owono Ateba, Simon Quetel-Weben, Jean-Marie Bienvenu Ndjaka

Institutions: Université de Yaoundé I, University of Ngaoundéré, Centre National de la Recherche Scientifique, École Nationale Supérieure d'Ingénieurs de Caen, Laboratoire de Cristallographie et Sciences des Matériaux

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $944