Abstract
The rare-earth (RE) filled skutterudites ( e.g., CeFe 4Sb 12) have been proposed for use in the next-generation of high-temperature thermoelectric devices. In this investigation, the influence of air exposure on the stability of CeFe 4Sb 12 has been studied for temperatures ranging from 300 K to 1073 K. Examination of the material after exposure to air at these temperatures using thermogravimetric analysis, powder X-ray diffraction, and X-ray absorption near-edge spectroscopy has shown that above 573 K, CeFe 4Sb 12 decomposes and then rapidly oxidizes. This temperature is much lower than the maximum operating temperature proposed for high-temperature thermoelectric devices used to recover the waste heat from vehicle exhaust systems (700–773 K).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.