Thermoelectric properties of MgTi2O5/TiN conductive composites prepared via reactive spark plasma sintering for high temperature functional applications
作者： Hyoung-Won Son , Quansheng Guo , Yoshikazu Suzuki , Byung-Nam Kim , Takao Mori
DOI: 10.1016/J.SCRIPTAMAT.2019.11.008
关键词:
摘要: Abstract In this study, thermoelectric properties of MgTi2O5-based composites were investigated. 10–30 vol.% TiN added as a conductive reinforcement phase. MgTi2O5/TiN successfully synthesized at 1373 K for 10 min via reactive spark plasma sintering. The present SPS process itself enhanced electrical conductivity MgTi2O5 more than 250 times while effectively suppressing thermal conduction by defect engineering. Moreover, compositing further remarkably improved its conductivity, and hence large enhancements in the power factor ZT value achieved. results indicate new doping technique enhancing other insulating oxide materials.
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