Temperature-dependent elastic moduli of lead telluride-based thermoelectric materials

Journal Article · Wed Dec 31 23:00:00 EST 2008 · Philosophical Magazine

DOI:https://doi.org/10.1080/14786430802607119· OSTI ID:968597

Ren, Fei ^[1]; Case, Eldon D ^[1]; Ni, Jennifer E. ^[1]; Timm, Edward J ^[1]; Lara-Curzio, Edgar ^[2]; Trejo, Rosa M ^[2]; Lin, Chia-Her ^[1]; Kanatzidis, Mercouri G. ^[3]

---

1. Michigan State University, East Lansing
2. ORNL
3. Northwestern University, Evanston

This study provides the first measurements of the temperature dependence of Young's modulus and Poisson's ratio for Ag-, Sb-, Sn-, and S- doped PbTe thermoelectric materials between room temperature and 723 K. Specimens cut from both cast ingots and hot pressed billets were included in the study. A critical potential application of these materials is as thermoelectric generators, producing electrical energy from waste heat. Knowledge of the elastic moduli as a function of temperature is essential for the design of thermoelectric generators since both analytical and Finite Element stress calculations require knowledge of the temperature-dependence of these properties.

• Research Organization: Oak Ridge National Laboratory (ORNL); High Temperature Materials Laboratory
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 968597
• Journal Information: Philosophical Magazine, Journal Name: Philosophical Magazine Journal Issue: 2 Vol. 89
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
DESIGN
NESDPS Office of Nuclear Energy Space and Defense Power Systems
TEMPERATURE DEPENDENCE
THERMOELECTRIC GENERATORS
THERMOELECTRIC MATERIALS
WASTE HEAT
elastic moduli
thermoelectric
ultrasound resonant spectroscopy