Single-phase filled skutterudite compounds BayNixCo4-xSb12 (x=0-0.1, y=0-0.4) were synthesized by a two-step solid state reaction. Effects of Ba filling fraction and Ni content on the thermoelectric properties of n-type BayNixCo4-xSb12 were investigated. Thermal conductivity decreased with increasing Ba filling fraction and temperature. When barium filling fraction (y) was fixed at 0.3, thermal conductivity decreased with increasing Ni content, and reached a minimum value at about x=0.05. Electron concentration and electrical conductivity increased with increasing Ba filling fraction and Ni content. Seebeck coefficient increased with increasing temperature, and decreased with increasing Ba filling fraction and Ni content. A maximum ZT value of 1.2 was obtained at about 800 K for Ba0.3Ni0.05Co3.95Sb12.
|Number of pages||4|
|Publication status||Published - 2001 Dec 1|
|Event||20th International Conference on Thermoelectrics ICT'01 - Beijing, China|
Duration: 2001 Jun 8 → 2001 Jun 11
|Other||20th International Conference on Thermoelectrics ICT'01|
|Period||01/6/8 → 01/6/11|
ASJC Scopus subject areas