节点文献
Lattice Thermal Transport in Double-filled Skutterudites In0.1YbyCo4Sb12
【摘要】 In order to investigate the phonon scattering mechanisms in double-filled skutterudites, the low-temperature lattice thermal conductivities of In0.1YbyCo4Sb12 were measured and analyzed based on the Debye model. The eingenmode frequencies of In and Yb were obtained from low-temperature specific heat capacity analysis. It is found that filling these two types of guest atoms with different eingenmode frequencies into the voids in skutterudites could introduce strong point defect and resonant scattering to lattice phonons, thus lead to significant decrease in the lattice thermal conductivity.
【Abstract】 In order to investigate the phonon scattering mechanisms in double-filled skutterudites, the low-temperature lattice thermal conductivities of In0.1YbyCo4Sb12 were measured and analyzed based on the Debye model. The eingenmode frequencies of In and Yb were obtained from low-temperature specific heat capacity analysis. It is found that filling these two types of guest atoms with different eingenmode frequencies into the voids in skutterudites could introduce strong point defect and resonant scattering to lattice phonons, thus lead to significant decrease in the lattice thermal conductivity.
【Key words】 thermoelectric; thermal conductivity; phonons;
- 【文献出处】 Journal of Wuhan University of Technology(Materials Science Edition) ,武汉理工大学学报(材料科学版)(英文版) , 编辑部邮箱 ,2013年04期
- 【分类号】O551.3
- 【被引频次】1
- 【下载频次】37