Thermoelectric Properties of Skutterudite CoSb3 Prepared by Encapsulated Induction Melting
Encapsulated induction melting was attempted to prepare binary skutterudite CoSb3 and its thermoelectric properties were investigated. Single phase δ-CoSb3 was successfully obtained by the subsequent isothermal heat treatment at 773K-873K for 24 hours in vacuum. Thermoelectric properties were changed with constituent phases because β-CoSb and Sb are metallic/semimetallic phases, while γ-CoSb2 and δ-CoSb3 are semiconducting phases. Thermoelectric properties were remarkably improved by the proper heat treatment and they were closely related to phase transitions.
Hyungsun Kim, Junichi Hojo and Soo Wohn Lee
S. C. Ur and I. H. Kim, "Thermoelectric Properties of Skutterudite CoSb3 Prepared by Encapsulated Induction Melting", Materials Science Forum, Vols. 544-545, pp. 921-924, 2007