International Round-Robin Study on Thermoelectric Transport Properties of n-type Half-Heusler from 300 K to 773 K
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Chinese Academy of Sciences (CAS), Shanghai (China)
- National Physics Laboratory (NPL), London, (United Kingdom)
- GMZ Energy, Waltham, MA (United States); Evident Thermoelectric, Troy, NY (United States)
- Univ. of Waterloo, ON (Canada)
- Fraunhofer-Inst. for PHysical Measurment Techniques, Freiburg (Germany)
- Korea Electrotechnology Research Inst., Anshan (Korea)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
- Univ. of Houston, TX (United States)
- General Motors, Global Research and Development, Warren, MI (United States)
- Marlow Industries, Inc., Dallas, TX (United States)
- U.S. Army Research Lab., Aldephi, MD (United States)
- CANMET Materials, Hamiliton, ON (Canada)
International transport property measurement round-robins have been conducted by the Thermoelectric Annex under the International Energy Agency (IEA) Implementing Agreement on Advanced Materials for Transportation (AMT). The previous round-robins used commercially available bismuth telluride as the testing material, with the goals of understanding measurement issues and developing standard testing procedures. The current round-robin extended the measurement temperature range to 773 K. It was designed to meet the increasing demands for reliable transport data of thermoelectric materials for power generation applications. Eleven laboratories from six IEA-AMT member countries participated in this study. Half-Heusler (n-type) material prepared by GMZ Energy was selected for the round-robin. The measured transport properties showed narrower distribution on uncertainties compared to previous round-robin efforts. The study intentionally included multiple testing methods and instrument types. Over the full temperature range, the measurement discrepancies on the figure of merit, ZT, in this round-robin were ±1.5 to ±16.4% from the averages.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1215580
- Journal Information:
- Journal of Electronic Materials, Vol. 44, Issue 11; ISSN 0361-5235
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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