کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1618912 | 1005714 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Examination of CeFe4Sb12 upon exposure to air: Is this material appropriate for use in terrestrial, high-temperature thermoelectric devices?
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
The rare-earth (RE) filled skutterudites (e.g., CeFe4Sb12) 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 CeFe4Sb12 has been studied for temperatures ranging from 300Â K to 1073Â 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 573Â K, CeFe4Sb12 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 (700-773Â K).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 505, Issue 1, 27 August 2010, Pages L6-L9
Journal: Journal of Alloys and Compounds - Volume 505, Issue 1, 27 August 2010, Pages L6-L9
نویسندگان
Alina C. Sklad, Michael W. Gaultois, Andrew P. Grosvenor,