Work

An Optimization of Composition Ratio among Triple‐Filled Atoms in In0.3-x-yBaxCeyCo4Sb12 System

Year: 2013

Type: article

Abstract: Bulk nanostructured materials are important as energy materials. Among thermoelectric materials, the skutterudite system of CoSb3 is a representative material of bulk nanostructured materials. Filling a skutterudite structure with atoms that have different localized frequencies (also known as triple filling) was reported to be effective for lowering thermal conductivity. Among studies representing superior power factors, In‐filled skutterudite systems showed higher Seebeck coefficients. This study sought to optimize the composition ratio among the triple‐filled atoms in an In0.3-x-yBaxCeyCo4Sb12 system. The composition dependence of the thermoelectric properties was investigated for specimens with different ratios among the three kinds of filler atoms in the In0.3-x-yBaxCeyCo4Sb12 system. In addition, the process variables were carefully optimized for filled skutterudite systems to obtain a maximum ZT value.

Source: Journal of Nanomaterials

DOI: 10.1155/2013/973060