采用快速凝固和热压的方法制备了p型热电材料Fe0.92Mn0.08Six(x=1.9, 2.0, 2.1, 2.3, 2.5).X射线衍射分析表明,热压试样退火24 h后,完全转变为β半导体相.所有试样的致密度均高于90%.测量试样的电学性能发现,原料配比为Fe0.92Mn0.08Si2.1的试样在整个测量温度范围内的功率因子最大,550℃时达到了400 μW·m-1·K-1以上.
参考文献
| [1] | 朱铁军,赵新兵,胡淑红,邬震泰,周邦昌.新型热电材料β-Zn4Sb3的电学性能[J].稀有金属材料与工程,2001(03):187-189. |
| [2] | Nagai H .Effects of Mechanical Alloying and Grinding on the Preparation and Thermoelectric Properties of β-FeSi2[J].Materials Transactions,1995,36(02):365. |
| [3] | Umemoto M .Preparation of Thermoelectric β-FeSi2 Doped with Al and Mn by Mechanical Alloying[J].Materials Transactions,1995,36(02):373. |
| [4] | Nishida I .Study of Semiconductor-to-metal Transition in Mn-doped FeSi2[J].Physical Review,1973,B7:2710-2713. |
| [5] | Kojima T;Shkata M;Nishida I .Formation of β-FeSi2 from the Sintered Eutectic Alloy FeSi-Fe2Si5 Doped with Cobalt[J].Journal of the Less-Common Metals,1990,159:299-305. |
| [6] | Zhao X.B.;Zhu T.J. .Transport properties of rapid solidified Fe-Si-Mn-Cu thermoelectric alloys[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2000(1/2):303-306. |
| [7] | Takeshi Negase;Isamu Yamauchi;Itsuo Ohnaka .Effect of Rapid Solidification on Microstructure of Various Fe29.5-xSi70.5-x Alloys[J].Journal of Alloys and Compounds,2000,312:295-301. |
| [8] | 朱铁军,赵新兵,胡淑红,邬震泰,周邦昌.快速凝固β-FeSi2半导体的热电性能[J].功能材料,2001(03):280-281. |
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