Title :
Gradient composite thermoelectric materials
Author :
Zhang Tongiun ; Jiangyin, Peng ; Junyou, Yang ; Huafang, Li
Author_Institution :
State Key Lab. of Die & Mould Tech, Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Gradient composition is one of the strategies for increasing the figure of merit Z of thermoelectric (TE) materials. There are two types of gradient composition TE materials. One is a carrier concentration functionally graded material (FGM), in which the carrier concentration was optimized to produce the maximum local Z with a certain temperature gradient. The other is a segmented FGM, which was composed of different material and each segment works at its optimal temperature range. The study progress of those two types of TE FGM is reviewed
Keywords :
carrier density; functionally graded materials; thermoelectricity; FGM; PbTe; SiGe; TE materials; carrier concentration functionally graded material; figure of merit; gradient composite thermoelectric materials; segmented FGM; Composite materials; Conducting materials; Ion implantation; Leg; Sheet materials; Tellurium; Temperature distribution; Thermal conductivity; Thermoelectricity; Tin;
Conference_Titel :
Thermoelectrics, 2001. Proceedings ICT 2001. XX International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7205-0
DOI :
10.1109/ICT.2001.979892
