摘要
采用感应熔炼和真空热压法制备了掺Li的Mg2-xLixSi0.6Sn0.4(X=O,0.03,0.07,0.15,0.3)热电材料,电导率、Seebeck系数及热导率的测量表明,Li在Mg2-xLixSi0.6Sn0.4中起到受主作用,当x=0.07时Li掺杂Mg2-xLixSi0.6Sn0.4具有最好的性能,其功率因子和ZT值的最大值分别在480和600K时达到0.55×10^-3W/(m.K^-2)和0.16。
Li contained P-type Mg2-xLixSi0.6Sn0.4(x=O, 0.03, 0.07, 0.15, 0.3) were made by inducing method. The influence of Li on the mechanism of carder transport was discussed. The electrical conductivities, Seebeck coefficients and thermal conductivities were measured. The best power factor and figure of merit reach 0.55×10^-3W/(m.K^-2) at 480 K and 0.16 at 600 K respectively for sample x=0.07.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A04期1362-1364,共3页
Journal of Functional Materials
基金
基金项目:国家自然科学基金资助项目(50471039,50522203)
关键词
MG2SI
掺杂
热电性能
优值
Mg2Si
doping
thermoelectric properties
figure of merit