کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1627737 | 1516459 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermoelectric properties of NaxCo2O4/Ag composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Polycrystalline samples of NaxCo2−yAgyO4 (x ∼ 1.5, y = 0, 0.1, 0.2, 0.3, 0.4, 0.5) were synthesized from powder precursors prepared by a polymerized complex (PC) method. The thermoelectric properties were evaluated in the temperature range from room temperature to 973 K. The electrical resistivity and Seebeck coefficient were measured simultaneously using ULVAC ZEM-1 in He atmosphere. The thermal conductivity was calculated from the heat capacity, density, and thermal diffusivity measured by the laser flash method using ULVAC TC-7000 in vacuum. The dimensionless figure of merit (ZT) of an Ag-doped (0.2) sample was higher than that of the non-doped sample, and reached ZT = 0.12 at 973 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 414, Issues 1–2, 13 April 2006, Pages 293–297
Journal: Journal of Alloys and Compounds - Volume 414, Issues 1–2, 13 April 2006, Pages 293–297
نویسندگان
Tosawat Seetawan, Vittaya Amornkitbamrung, Thanusit Burinprakhon, Santi Maensiri, Ken Kurosaki, Hiroaki Muta, Masayoshi Uno, Shinsuke Yamanaka,