2016年3月
Effects of doping elements in β-FeSi<inf>2</inf>prepared utilizing cast iron scrap chips
Materials Transactions
- ,
- ,
- ,
- 巻
- 57
- 号
- 3
- 開始ページ
- 445
- 終了ページ
- 451
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.2320/matertrans.M2015357
© 2016 The Japan Institute of Metals and Materials. In this work, the thermoelectric properties of p- and n-type β-FeSi 2 , prepared utilizing cast iron scrap chips, have been characterized by measuring the Seebeck coefficient, electrical conductivity and thermal conductivity at temperatures ranging from room temperatures to 800°C. In a previous study, the upgrade recycling of cast iron scrap chips into β-FeSi 2 thermoelectric materials was proposed as an eco-friendly and costeffective production process. By doping with different substitution concentrations of Co, Mn and Al, the conduction type and properties of β-FeSi 2 can be modified and improved using cast iron scrap chips as a starting material. The effects of the doping elements are discussed for preparing β-FeSi 2 utilizing cast iron scrap chips. Cast iron scrap chips could be preferable as a starting material to replace pure Fe for n- and ptype β-FeSi 2 thermoelectric materials. An optimum composition for n-type β-FeSi 2 0.94C.I.-0.06Co-1.86Si shows that the largest ZT value of 0.22 occurs at 700°C, whereas for p-type β-FeSi 2 0.92C.I.-0.08Mn-1.86Si, the largest ZT value of 0.17 occurs at 800°C.
- リンク情報
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- DOI
- https://doi.org/10.2320/matertrans.M2015357
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000374619600035&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84960366459&origin=inward
- ID情報
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- DOI : 10.2320/matertrans.M2015357
- ISSN : 1345-9678
- eISSN : 1347-5320
- SCOPUS ID : 84960366459
- Web of Science ID : WOS:000374619600035