کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1498189 1510894 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal conductivity and thermoelectric performance of SrxBa1−xNb2O6 ceramics at high temperatures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Thermal conductivity and thermoelectric performance of SrxBa1−xNb2O6 ceramics at high temperatures
چکیده انگلیسی

The thermal conductivity of SrxBa1−xNb2O6 ceramics increases with increasing temperature and exhibits a maximum around the Burns temperature. At the same temperature, the semiconductor–metallic transition occurs in the electron transport. This agreement indicates that the polarized regions have an effect on electrical and thermal transport. SrxBa1−xNb2O6 ceramics have lower lattice thermal conductivities around the solid solution limitations because of the competing influences caused by increasing Sr content. The figure of merit ZT also exhibits larger values around the solid solution limitations and reaches the maximum of ∼0.2 at 1073 K in Sr0.70Ba0.30Nb2O6.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 109, December 2015, Pages 80–83
نویسندگان
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