書誌事項
- タイトル別名
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- Microstructures and Thermoelectric Properties of NaCo2O4 Prepared by Double-step Sintering.
- 2 ダンカイ ショウケツホウ デ ゴウセイ シタ NaCo2O4 ショウケツタイ ノ ビサイ コウゾウ ト ネツデントクセイ
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The thermoelectric properties of sintered bodies of NaCo2O4, which is so far the most promising p-type candidate for oxide thermoelectric material, are investigated in terms of their sintering conditions. Double-step sintering, for which single-phase NaCo2O4 obtained by calcination and sintering with addition of 10% excess of Na each time is re-ground and sintered again, is revealed to attain a marked improvement in the thermoelectric performance of the oxide. The improvement is due to increase in both Seebeck coefficient and electrical conductivity, and is attributed to a distinct enhancement of the two-dimensionality in the crystallites constituting the sintered body. The oxide sintered body consequently attains the figure-of-merit of 0.88×10-3K-1 at 600°C, and the maximum ZT of 0.78 at 800°C.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 47 (11), 1159-1164, 2000
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001206308016384
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- NII論文ID
- 10005138984
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- NII書誌ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BD3MXislKjtQ%3D%3D
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- ISSN
- 18809014
- 05328799
- http://id.crossref.org/issn/05328799
- http://id.crossref.org/issn/00325899
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- NDL書誌ID
- 5577092
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可