Effect of Addition of Titanium Nitride on Thermoelectric Performance of Yttrium-Doped Strontium Titanate
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- Shoji Tomoyoshi
- Graduate School of Engineering and Resource Science, Akita University
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- Sugiyama Shigeaki
- Akita Research and Development Center
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- Fuda Kiyoshi
- Graduate School of Engineering and Resource Science, Akita University
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We examined the effect of addition of titanium nitride on thermoelectric performance of this material. The samples constructed of Y-doped SrTiO3 and TiN were prepared by two steps of the solid-state reactions. SrTiO3 with cubic perovskite structure was formed in all samples. The highest electric conductivity was found for Sr0.9Y0.1TiO3-0.1TiN, whereas the largest absolute value in Seebeck coefficient was found for Sr0.9Y0.1TiO3. Lower thermal conductivity was found for Sr0.9Y0.1TiO3-0.1TiN. The ZT was calculated from the electric conductivity, the Seebeck coefficient, and the thermal conductivity. A high performance was shown in Sr0.9Y0.1TiO3-0.1TiN, giving a high electric conductivity and a low thermal conductivity simultaneously. The highest value of ZT was obtained to be 0.26 at 1077 K for this sample.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 52 (8), 1531-1534, 2011
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204250147712
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- NII論文ID
- 10029297380
- 130004454793
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 11181813
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可