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- W2797378465 endingPage "045510" @default.
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- W2797378465 abstract "The thermoelectric properties of Bi2Sr2Co2Oy + x wt% nano SiC (x = 0.00, 0.025, 0.05, 0.1, 0.2, and 0.3) prepared by the solid-state reaction method were investigated from 300 K to 923 K. The resistivity can be reduced effectively by adding a small amount of SiC nano particles, which is attributed to the increase of the carrier concentration. At the same time, the Seebeck coefficients can be improved effectively due to the energy filtering effect that low energy carriers are strongly dispersed at the interface between the SiC nano particles and the matrix. The decrease of thermal conductivity is due to the increase of the scattering ability of the phonons by the SiC nanoparticles distributed at the boundary of the matrix. As a result, the Bi2Sr2Co2Oy + x wt% SiC composites exhibit better thermoelectric properties. The maximum ZT value 0.24 is obtained when x = 0.05 at 923 K. Compared with the sample without SiC nano particles, the ZT value is increased by about 59.7%." @default.
- W2797378465 created "2018-04-24" @default.
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- W2797378465 date "2018-04-19" @default.
- W2797378465 modified "2023-09-26" @default.
- W2797378465 title "Enhanced thermoelectric properties of nano SiC dispersed Bi<sub>2</sub>Sr<sub>2</sub>Co<sub>2</sub>O<sub>y</sub> Ceramics" @default.
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- W2797378465 doi "https://doi.org/10.1088/2053-1591/aabca8" @default.
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