کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803798 | 1516473 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Annealing effect on thermoelectric properties of TiCoSb half-Heusler compound
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The half-Heusler compound TiCoSb was prepared by arc melting. We annealed the ingot for 1, 3, and 7 days at 1173Â K, and measured the electrical resistivity, thermoelectric power, and thermal diffusivity in the temperature region from 350 to 973Â K. We found that the dimensionless figure of merit ZT decreased with increasing annealing period. We have considered that the changes of thermoelectric properties are derived from two competitive phenomena; the first one is the introduction of structural disorder due to evaporation of impurity antimony, and the second one is the improvement of the disorder effect by annealing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 394, Issues 1â2, 17 May 2005, Pages 122-125
Journal: Journal of Alloys and Compounds - Volume 394, Issues 1â2, 17 May 2005, Pages 122-125
نویسندگان
Takeyuki Sekimoto, Ken Kurosaki, Hiroaki Muta, Shinsuke Yamanaka,