Thermoelectric Properties of Iron Disilicide Prepared by Field-Activated Synthesis Process
Iron disilicide（-FeSi2）compounds were synthesized by field-activated pressure assisted synthesis (FAPAS) process, and their thermoelectric properties were measured. Fine microstructure with small pores was obtained in the fabricated samples. The average grain size was approximately 0.3 m. The thermal conductivity in the temperature range of 300-725 K was 3-4 Wm-1K-1, which was considerably lower than that of the same materials synthesized by other methods including SPS process. Lower thermal conductivity provided a higher figure of merit, ZT of 28.50×10-4 in the temperature range of 330-450 K.
Zhengyi Jiang and Chunliang Zhang
Q. S. Meng et al., "Thermoelectric Properties of Iron Disilicide Prepared by Field-Activated Synthesis Process ", Advanced Materials Research, Vols. 97-101, pp. 1166-1169, 2010