|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Alloys and Compounds for Thermoelectric and Solar Cell Applications IV
||DD-1: Fabrication of CrSi2/NbSi2 Nanocomposite by Melt Spinning Technique and
||Takahito Kurimoto, Yuji Ohishi, Hiroaki Muta, Ken Kurosaki, Shinsuke Yamanaka
|On-Site Speaker (Planned)
In recent years, several studies have reported substantially enhanced thermoelectric performance in fine-structured materials. This enhancement is attributed to the reduction of the lattice thermal conductivity by enhanced phonon scattering at the fine structures. In this study, we fabricated sub-micro composite where NbSi2 small particles were dispersed in a CrSi2 matrix by self-organizing process. In this method, a super-saturated CrSi2-NbSi2 solid solution was prepared by melt spinning (MS) technique. Subsequent sintering process led to the segregation of the NbSi2 sub-micro inclusions. Since the lattice parameters of CrSi2 and NbSi2 are relatively close, the interface between CrSi2 and NbSi2 is expected to be coherent, which means that the NbSi2 inclusions will not affect the carrier transport significantly. The thermal and electrical properties of the composite were measured and the effect of sub-micro inclusions on the thermoelectric properties will be discussed.
||Planned: A print-only volume