Effect of Aluminum and Copper Addition to the Thermoelectric Properties of FeSi<SUB>2</SUB> Sintered in the Atmosphere
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- Niizeki Naohiro
- Salesian Polytechnic
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- Kato Masahiko
- Salesian Polytechnic
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- Ohsugi Isao J.
- Salesian Polytechnic
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- Isoda Yukihiro
- National Institute for Materials Science
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- Kohri Hitoshi
- Department of Materials Science and Technology, Faculty of Engineering, Kogakuin University
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- Shiota Ichiro
- Department of Materials Science and Technology, Faculty of Engineering, Kogakuin University
Bibliographic Information
- Other Title
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- Effect of aluminum and copper addition to the thermoelectric properties of FeSi2 sintered in the atmosphere
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Abstract
Thermoelectric materials with composition of Fe0.92Mn0.08Si2.1 + X mass% Cu + Y mass% Al (0≤X, Y≤5) were produced by sintering in air, and their thermoelectric properties and structures were examined. The samples showed fairly good thermoelectric properties. Moreover they were covered with an oxidation resistance layer. The samples without addition of Cu and/or Al did not show any effective thermoelectric properties. In the case of copper addition, the thermoelectric power of the copper added sample was approximately 75% of the sample prepared in a vacuum, while the resistivity was drastically increased. The oxidation of the copper added samples was much less than that without copper. In the case of 2 mass% or more aluminum addition, a silicon oxide layer was formed on the surface of the samples. The oxide layer had much more dense and smooth surface, which was confirmed by an optical microscope and a scanning electron microscope (SEM). The samples, which were added both copper and more than 2 mass% aluminum, showed about 80% of thermoelectric power of the samples prepared in a vacuum.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 50 (7), 1586-1591, 2009
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679226107136
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- NII Article ID
- 10025153455
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 10265535
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed