کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1606799 | 1516228 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvement of thermoelectric power of n-type earth-abundant iron rich alloy by microstructure engineering
ترجمه فارسی عنوان
بهبود قدرت ترموالکتریک از آلیاژ غنی از آهن غنی از زمین با استفاده از مهندسی ریز ساختار
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کلمات کلیدی
آلیاژ غنی آهن قدرت ترموالکتریک، ریز ساختار، کارابید وانادیوم، کاربید کروم،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Due to the exhaustion of rare metal resources and the hazard of toxic material to the environment, development of cost-effective, nontoxic, and earth-abundant thermoelectric materials has become more urgent. This study introduces a nontoxic, earth abundant n-type iron-based cost-effective Fe-2.3C-Si-5Mn-7V-8Cr thermoelectric material that is prepared by a simple melting method. Significant increase in both electrical conductivity and Seebeck coefficient are achieved by several heat treatment processes to optimize the distribution and grain size of VC, Cr23-xFexC6 typed chromium carbide as well as base matrix. As a result, the power factor of the sample that is normalized at 1150 °C is about 0.75 mWmâ1K â2 in maximum value, which is 2.6 times larger than that (0.29 mWmâ1Kâ2) of as-cast sample. The highest ZT value of the sample that is normalized at 1150 °C is 0.028 at 868 K, which is 4.3 times larger than that of as-cast sample (0.0065 at 964 K) in present study, indicating that a proper heat treatment process would remarkably enhance ZT value. This research provides extremely valuable data for the future researches on thermoelectric alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 665, 25 April 2016, Pages 7-12
Journal: Journal of Alloys and Compounds - Volume 665, 25 April 2016, Pages 7-12
نویسندگان
Jun Wang, Yan Li, Xinba Yaer, Aodun Qiqige, Chao Fang, Lei Miao, Chengyan Liu,