|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Alloys and Compounds for Thermoelectric and Solar Cell Applications V
||Nanostructure of Si/transition Metal Silicide Composite Prepared by a Melt Spinning Method
||Yuji Ohishi, Tomoki Ebata, Jun Xie, Hiroaki Muta, Ken Kurosaki, Shinsuke Yamanaka
|On-Site Speaker (Planned)
Several previous studies have demonstrated that formation of nanostructures in thermoelectric materials drastically reduced the thermal conductivity and enhance the thermoelectric figure of merit. In recent years, our group have shown that nanometer-sized composite structure of Si and transition metal (TM) silicide is generated by a rapid solidification of the melt alloys. In this study, the relationship between the type of the TM and the resultant nanostructure was systematically studied. Si/TM silicide composites that had a composition ratio of Si:TM = 19:1 were synthesized by a melt spinning method. The nanostructures of the melt spun samples were observed by scanning electron microscope. The thermal diffusivity was measured with an AC calorimetric method and the thermal conductivity was evaluated. The relationship between the type of TM, the formed nanostructure and the thermal conductivity will be discussed.
||Planned: Supplemental Proceedings volume