Silver as a highly effective bonding layer for lead telluride thermoelectric modules assembled by rapid hot-pressing

C. C. Li, F. Drymiotis, L. L. Liao, M. J. Dai, C. K. Liu, C. L. Chen, Y. Y. Chen, C. R. Kao*, G. J. Snyder

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

We use the rapid hot-pressing method to bond Ag foil onto pure PbTe in order to assess its effectiveness as a bonding layer material for thermoelectric module applications. Scanning electron microscopy and X-ray diffraction are employed to examine intermetallic compound formation and microstructure evolution during isothermal aging at 400 °C and 550 °C. We find that Ag is a promising bonding material for PbTe modules operating at THot ≤ 400 °C. Additionally, our approach highlights a highly effective and inexpensive method to metallize PbTe prior to module assembly.

Original languageEnglish (US)
Pages (from-to)134-137
Number of pages4
JournalEnergy Conversion and Management
Volume98
DOIs
StatePublished - Jul 1 2015

Keywords

  • Intermetallic compounds
  • Rapid hot-pressing
  • Thermal stability
  • Thermoelectric material

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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