Studies on the Phase Transformation and Stability of the Sintered Compacts FeSi2Doped with Mn and Co

Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (12): 1954.

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Studies on the Phase Transformation and Stability of the Sintered Compacts FeSi₂Doped with Mn and Co

CUI Xiang-Hao¹, ZON Won-Ik², WEI Chang-Ping³

1. Department of Chemistry, Jilin University, Changchun 130023, China;
2. Department of Chemistry, Natural Science Institute, Pyong Yang, Korea;
3. Jilin Institute of Technology, Department Light Industry Textile Engineering, Changchun 130012, China

Received:1998-08-30 Online:1999-12-24 Published:1999-12-24

Abstract

Abstract: In this paper, p-type Fe_1-xMn_xSi₂(x=0-0.12) and n type Fe_1-yCo_ySi₂(y=0-0.12) were synthesized by means of ceramic technology. The influence of additive amounts of Mn and Co, and heat treatment on the amounts of β-phase formed were studied. Experimental results indicate that addition of Mn and Co could inhibit the amounts and velocity of phase formation. High relative density(D_r) of p-type Fe_1-xMn_xSi₂and n-type Fe_1-yCo_ySi₂causes excellent corrosion resistance and heat resistance which are beneficial for manufacture of thermoelectric components.

Key words: β-Phase, Mn, Co, FeSi₂

CLC Number:

O647.11

TrendMD:

CUI Xiang-Hao, ZON Won-Ik, WEI Chang-Ping . Studies on the Phase Transformation and Stability of the Sintered Compacts FeSi₂Doped with Mn and Co[J]. Chem. J. Chinese Universities, 1999, 20(12): 1954.

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Studies on the Phase Transformation and Stability of the Sintered Compacts FeSi₂Doped with Mn and Co

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