کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5461171 | 1516184 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of the thermoelectric properties of reduced Nb-doped TiO2-δ ceramics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigation of the thermoelectric properties of reduced Nb-doped TiO2-δ ceramics Investigation of the thermoelectric properties of reduced Nb-doped TiO2-δ ceramics](/preview/png/5461171.png)
چکیده انگلیسی
A series of Nb-doped TiO2-δ (Ti1-xNbxO2-δ) ceramics was fabricated using a conventional solid state reaction method with subsequent annealing in a reducing atmosphere. X-ray diffraction revealed that there are different phases in the ceramics with different Nb doping levels, x. The thermoelectric properties of the Ti1-xNbxO2-δ samples were measured in the temperature range from 100 K to 380 K, and the resistivities and Seebeck coefficients for these samples were found to show semiconductor behavior. It has been shown that the transport behavior of these samples is consistent with the small polaron conduction mechanism for the temperature range from room temperature to 380 K. The largest ZT value observed, 0.023, was obtained for the x = 0.01 sample at the highest test temperature, 380 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 710, 5 July 2017, Pages 778-783
Journal: Journal of Alloys and Compounds - Volume 710, 5 July 2017, Pages 778-783
نویسندگان
Zhanhui Yuan, Jing Gong, Shikui Xu, Zhuangzhi Li, Guide Tang,