밀폐유도용해로 제조한 Co1-xNixSb3의 열전특성

김미정; 최현모; 어순철; 김일호; Mi-Jung Kim; Hyun-Mo Choi; Soon-Chul Ur; Il-Ho Kim

Korean Journal of Materials Research, Vol.16, No.6, 377-381, June, 2006

DOI10.3740/MRSK.2006.16.6.377 Export Citation

밀폐유도용해로 제조한 Co1-xNixSb3의 열전특성

Thermoelectric Properties of Co1-xNixSb3 Prepared by Encapsulated Induction Melting

김미정, 최현모, 어순철 , 김일호 ^†

충주대학교 신소재공학과/친환경 에너지 변환.저장소재 및 부품개발 연구센터

Mi-Jung Kim, Hyun-Mo Choi, Soon-Chul Ur , and Il-Ho Kim^†

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

E-mail:

Skutterudite doped with nickel was prepared by encapsulated induction melting, and its doping effects on thermoelectric properties were investigated. Single phase was successfully obtained by encapsulated induction melting and subsequent heat treatment at 773 K for 24 h. Nickel atoms acted as electron donors by substituting cobalt atoms. Thermoelectric properties were remarkably improved by appropriate heat treatment and doping, and they were closely related to phase transitions and dopant activation. The maximum ZT(dimensionless figure of merit) was achieved as 0.2 at 600 K for the specimen.

Keywords:thermoelectric;skutterudite;doping;induction melting

[References]

Slack GA, Tsoukala VG, J. Appl. Phys, 76, 1665 (1994)
Sharp JW, Jones EC, Williams RK, Martin PM, Sales BC, J. Appl. Phys., 78, 1013 (1995)
Massalski TB, Okamoto H, Subramanian PR, Kacprzak L, Binary Alloy Phase Diagrams, 2nd Ed., American Society for Metals, 1233 (1990) (1990)
Feschotle P, Lorin D, J. Less-Common Metals, 155, 255 (1989)
Caillat T, Borshchevski A, Fleurial JP, Proc. 13th Intl. Conf. Thermoelectrics, 58 (1994)
Kawaharada Y, Kurosaki K, Uno M, Yamanaka S, J. Alloys & Comp., 375, 193 (2001)
Wojciechowski KT, Tobola J, Leszczynski J, J. Alloys & Comp., 361, 19 (2003)
Yang J, Morelli DT, Meisner GP, Chen W, Dyck JS, Uher C, Phys. Rev. B, 65, 94115 (2002)
Katsuyama S, Watanabe M, Kuroki M, Maehata T, Ito M, J. Appl. Phys., 93, 2758 (2003)
Anno H, Matsubara K, Notohara Y, Sakakibara T, Tashiro H, J. Appl. Phys., 86, 3780 (1999)
Caillat T, Borshchevski A, Fleurial JP, J. Appl. Phys., 80, 4442 (1996)
Tashiro H, Notohara Y, Sakaibara T, Anno H, Matsubara K, Proc. 16th Intl. Conf. Thermoelectrics, 326 (1997) (1997)
Nakamoto Y, Tanaka K, Koyanagi T, Proc. 17th Intl. Conf. Thermoelectrics, 302 (1998)
Kim IH, Choi GS, Han MG, Kim JS, Lee JI, Ur SC, Hong TW, Lee YG, Ryu SL, Mater. Sci. Forum, 449, 917 (2004)
Matsubara K, Sakakibara T, Notohara Y, Anno H, Shimuzu H, Koyanagi T, Proc. 15th Intl. Conf. Thermoelectrics, 96 (1996)

[Related Articles]

[1] Slack GA, Tsoukala VG, J. Appl. Phys, 76, 1665 (1994)

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

[3] Massalski TB, Okamoto H, Subramanian PR, Kacprzak L, Binary Alloy Phase Diagrams, 2nd Ed., American Society for Metals, 1233 (1990) (1990)

[4] Feschotle P, Lorin D, J. Less-Common Metals, 155, 255 (1989)

[5] Caillat T, Borshchevski A, Fleurial JP, Proc. 13th Intl. Conf. Thermoelectrics, 58 (1994)

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

[7] Wojciechowski KT, Tobola J, Leszczynski J, J. Alloys & Comp., 361, 19 (2003)

[8] Yang J, Morelli DT, Meisner GP, Chen W, Dyck JS, Uher C, Phys. Rev. B, 65, 94115 (2002)

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

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

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

[12] Tashiro H, Notohara Y, Sakaibara T, Anno H, Matsubara K, Proc. 16th Intl. Conf. Thermoelectrics, 326 (1997) (1997)

[13] Nakamoto Y, Tanaka K, Koyanagi T, Proc. 17th Intl. Conf. Thermoelectrics, 302 (1998)

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

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