밀폐유도용해로 제조된 Co1-xFexSb3의 열전특성

박관호; 고동욱; 어순철; 김일호; Kwan-Ho Park; Dong-Wook Koh; Soon-Chul Ur; Il-Ho Kim

Korean Journal of Materials Research, Vol.16, No.6, 351-354, June, 2006

DOI10.3740/MRSK.2006.16.6.351 Export Citation

밀폐유도용해로 제조된 Co1-xFexSb3의 열전특성

Thermoelectric Properties of Co1-xFexSb3 Prepared by Encapsulated Induction Melting

박관호, 고동욱, 어순철 , 김일호 ^†

충주대학교 신소재공학과/친환경 에너지 변환.저장소재 및 부품개발 연구센터

Kwan-Ho Park, Dong-Wook Koh, Soon-Chul Ur , and Il-Ho Kim^†

Department of Materials Science and Engineering/ReSEM, Chungju National University, Korea

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[ ] skutterudites were synthesized by encapsulated induction melting and their thermoelectric properties were investigated. Single phase was successfully obtained by the subsequent heat treatment at 773 K for 24 hours in vacuum. However, was decomposed to FeSb2 and Sb when , which means that the solubility limit of Fe to Co is x<0.3. The positive signs of Seebeck coefficients for all Fe-doped specimens revealed that Fe atoms acted as p-type dopants by substituting Co atoms. Thermoelectric properties were remarkably enhanced by Fe doping and optimum composition was found to be in this study.

Keywords:skutterudite;thermoelectric;induction melting;CoSb3

[References]

Sharp JW, Jones EC, Williams RK, Martin PH, Sales BC, J. Appl. Phys., 78, 1013 (1995)
Matsubara K, Sakakibara T, Notohara Y, Anno H, Shimizu H, Koyanagi T, Proc. 15th Intl. Conf. Thermoelectrics, 96 (1996)
Anno H, Matsubara K, Notohara Y, Sakaibara T, Tashiro H, J. Appl. Phys., 86, 3780 (1999)
Caillat T, Borshchevski A, Fleurial JP, J. Appl. Phys., 80, 4442 (1996)
Kim IH, Choi GS, Han MG, Kim JS, Lee JI, Ur SC, Hong TW, Lee YG, Ryu SL, Mater. Sci. Forum, 449, 917 (2004)
Katsuyama S, Watanabe M, Kuroki M, Maehata T, Ito M, J. Appl. Phys., 93, 2758 (2003)
Kawaharada Y, Kurosaki K, Uno M, Yamanaka S, J. Alloys & Comp., 375, 193 (2001)
You SW, Jung JY, Ur SC, Kim IH, Korean J. Mater. Res., (2006, in press), 16(5), 312 (2006)
Katsuyama S, Shichijo Y, Ito M, Majima K, Nagai H, J. Appl. Phys., 84, 6708 (1998)

[Related Articles]

[1] Sharp JW, Jones EC, Williams RK, Martin PH, Sales BC, J. Appl. Phys., 78, 1013 (1995)

[2] Matsubara K, Sakakibara T, Notohara Y, Anno H, Shimizu H, Koyanagi T, Proc. 15th Intl. Conf. Thermoelectrics, 96 (1996)

[3] Anno H, Matsubara K, Notohara Y, Sakaibara T, Tashiro H, J. Appl. Phys., 86, 3780 (1999)

[4] Caillat T, Borshchevski A, Fleurial JP, J. Appl. Phys., 80, 4442 (1996)

[5] Kim IH, Choi GS, Han MG, Kim JS, Lee JI, Ur SC, Hong TW, Lee YG, Ryu SL, Mater. Sci. Forum, 449, 917 (2004)

[6] Katsuyama S, Watanabe M, Kuroki M, Maehata T, Ito M, J. Appl. Phys., 93, 2758 (2003)

[7] Kawaharada Y, Kurosaki K, Uno M, Yamanaka S, J. Alloys & Comp., 375, 193 (2001)

[8] You SW, Jung JY, Ur SC, Kim IH, Korean J. Mater. Res., (2006, in press), 16(5), 312 (2006)

[9] Katsuyama S, Shichijo Y, Ito M, Majima K, Nagai H, J. Appl. Phys., 84, 6708 (1998)