Nanostructured thermoelectric skutterudite Co(1-x)Ni(x)Sb3 alloys.
Nanostructured Ni-doped skutterudites Co(1-x)Ni(x)Sb3 (with x ranging from 0.01 to 0.09) were prepared by ball milling and direct-current induced hot press. It was found that the thermal conductivity was reduced due to strong electron-phonon scattering from Ni-doping as well as phonon scattering from the increased grain boundary of the nanostructures. A maximum dimensionless figure-of-merit of 0.7 was obtained in Co0.91Ni0.09Sb3 at 525 degrees C.
He
Qinyu
Q
School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631, P. R. China.
Hao
Qing
Q
Wang
Xiaowei
X
Yang
Jian
J
Lan
Yucheng
Y
Yan
Xiao
X
Yu
Bo
B
Ma
Yi
Y
Poudel
Bed
B
Joshi
Giri
G
Wang
Dezhi
D
Chen
Gang
G
Ren
Zhifeng
Z