节点文献

Lattice Thermal Transport in Double-filled Skutterudites In0.1YbyCo4Sb12

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 徐薇彭江英HE JianZHOU MenghanYANG JunyouFU Liangwei

【Author】 XU Wei1, PENG Jiangying1*, HE Jian2, ZHOU Menghan2, YANG Junyou3, FU Liangwei3 (1. School of Mechanical Science & Engineering, Huazhong University of Science & Technology, ?Wuhan 430074, China; 2. Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, USA; 3. State Key Laboratory of Material Processing and Die & Mound Technology, Huazhong University of Science & Technology, Wuhan 430074, China)

【机构】 School of Mechanical Science & Engineering, Huazhong University of Science & TechnologyDepartment of Physics and Astronomy, Clemson UniversityState Key Laboratory of Material Processing and Die & Mound Technology, Huazhong University of Science & Technology

【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.

【关键词】 thermoelectricthermal conductivityphonons
【Key words】 thermoelectricthermal conductivityphonons
【基金】 Funded by the National Natural Science Foundation of China(No.50972047,51072062);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry,and the Fundamental Research Funds for the Central Universities(2011TS124,HUST);the financial support from DOE/EPSCoR Implementation(Grant No.DE-FG02-04ER-46139) and SC EPSCoR Office/Clemson University cost sharing
  • 【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
节点文献中: