Quick Search:       Advanced Search
秦丙克,籍永华,宿太超,白志玲,黄润,张金柱.FeTe<sub>2</sub>化合物快速制备及电学输运性能研究[J].稀有金属材料与工程(英文),2019,47(3):931~935.[Qin Bingke,Ji Yonghua,Su Taichao,Bai Zhiling,Huang Run and Zhang Jinzhu.Rapid preparation and electrical transport properties of compound FeTe<sub>2</sub>[J].Rare Metal Materials and Engineering,2019,47(3):931~935.]
Rapid preparation and electrical transport properties of compound FeTe<sub>2</sub>
Download Pdf  View/Add Comment  Download reader
Received:May 25, 2018  Revised:September 06, 2018
DOI:
Key words: Thermoelectric materials  FeTe2  Microstructure  Electrical properties
Foundation item:贵州省教育厅(黔教合KY字[2016]102号);国家自然基金(51764005)。
Author NameAffiliation
Qin Bingke,Ji Yonghua,Su Taichao,Bai Zhiling,Huang Run and Zhang Jinzhu  
Hits: 8
Download times: 4
Abstract:
      Single-phase alloy compound FeTe<sub>2</sub> was rapidly synthesized by vacuum high temperature sintering in the temperature range of 803K~923K. At the preparation temperature of 863.15K, the effect of different holding time on the preparation of single phase FeTe<sub>2</sub> was examined. The crystallographic properties and microstructure were characterized by X-ray diffraction and electron probe microanalysis separately. Seebeck coefficient and electrical resistivity were measured at room temperature. The results show that the single-phase polycrystalline compound FeTe<sub>2</sub> can be rapidly prepared by high-temperature sintering reaction. There are many micron-sized pores evenly inside the sample. The transport properties were measured at room temperature. The maximum Seebeck coefficient was 88.21 88.21μV/k at preparation temperature of 863.15K and holding time of 60 min. When the preparation temperature was 803.15K and the holding time was 30min, the minimum resistivity was 7.86 mΩ.cm. The maximum power factor 53.82 μW/(m.k<sub>2</sub>) was obtained when the sample was prepared at 923.15K temperature for 30min.