High temperature thermogenerators made on DBC substrate using vapour phase soldering
Abstract
Purpose
The purpose of this paper is to assess the reliability of thermoelectric generators after ageing at elevated temperature and to determine the influence of the technology used (i.e. type of thermoelectric material, type of substrate and soldering technology) for thermogenerator (TGE) assembly.
Design/methodology/approach
In this paper, the Seebeck coefficient and the current voltage were measured for lead telluride doped with either manganese (PMT), germanium (PGT) or sulfur (PST) TGEs. The Seebeck coefficient measurements were taken at temperatures between 230 and 630 K.
Findings
The Seebeck coefficient determined for PMT, PGT and PST TGEs increases approximately linearly with increasing temperature and is greater by about 40 per cent for PST and about 30 per cent for PMT than in commercially available PbTe TGEs. The best outcome in terms of stability after long-term ageing was that of PMT material.
Originality/value
The choice of proper technology (i.e. thermoelectric materials, type of substrate and soldering technology) for the TGE assembly is essential for their functioning overtime and reliability.
Keywords
Acknowledgements
This study was partially supported by the European Union within the European Regional Development Fund, through grant Innovative Economy (MIME POIG.01.01.02-00-108/09).
Citation
Skwarek, A., Synkiewicz, B., Kulawik, J., Guzdek, P., Witek, K. and Tarasiuk, J. (2015), "High temperature thermogenerators made on DBC substrate using vapour phase soldering", Soldering & Surface Mount Technology, Vol. 27 No. 3, pp. 125-128. https://doi.org/10.1108/SSMT-04-2015-0017
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited