Xu WANG, Ming GU, Jincheng LIAO, Qingfeng SONG, Xun SHI, Shengqiang BAI, Lidong CHEN. High Temperature Interfacial Stability of Fe/Bi0.5Sb1.5Te3 Thermoelectric Elements [J]. Journal of Inorganic Materials, 2021, 36(2): 197
- Journal of Inorganic Materials
- Vol. 36, Issue 2, 197 (2021)
. Low magnification SEM images of the micro-interfaces in the as-prepared co-sintered sample for screening of the barrier layer materials (a) Cr, Fe, Co, Ti; (b) Al, Zr
. Surface mapping of the micro-interfaces between P-BT matrix and 6 barrier layer candidate particles aged at 300 ℃ for 2 d
. (a) Interfacial microstructure of the as-prepared Fe/P-BT TE element before aging and (b) line scanning of the as-prepared Fe/P-BT interface
. Cross sectional microstructures of the Fe/P-BT interface after aging at different temperatures for different time
. (a) Variation of the diffusion layer thickness at the Fe/P-BT interface with the square root of aging time at 300, 325 and 350 ℃, and (b) variation of lnD with 1000/T between 300 and 350 ℃
. Evolution of the Fe/P-BT interfacial resistivity with aging time at 350 ℃
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Table 1.
Fitting results of the growth rates of the diffusion layers, the relationship between diffusion layer thickness and aging time, and predicted service lives of the Fe/P-BT element at different temperatures
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