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Interface interaction in the B4C/(Fe-B-C) system
DOI:10.1016/j.msea.2007.06.100.png)
摘要
En 中文
The wetting behavior in the B4C/(Fe-C-B) system was investigated in order to clarify the role of Fe additions on the sinterability of B4C. Iron and its alloys with C and B react with the boron carbide substrate and form a reaction zone consisting of a fine mixture of FeB and graphite. The apparent contact angles are relatively low for the alloys with a moderate concentration of the boron and carbon and allow liquid phase sintering to occur in the B4C-Fe mixtures. A dilatometric study of the sintering kinetics confirms that liquid phase sintering actually takes place and leads to improved mass transfer. A thermodynamic analysis of the ternary Fe-B-C system allows accounting for the experimental observations. (C) 2008 Elsevier B.V. All rights reserved.
Keyword:
Wetting
Interface
Thermodynamics
B4C
Fe-B-C alloys
Sintering
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