Interface interaction in the B4C/(Fe-B-C) system

被引：30
|
作者：
Aizenshtein, M. [1 ,2 ]
Mizrahi, I. [1 ]
Froumin, N. [1 ]
Hayun, S. [1 ]
Dariel, M. P. [1 ]
Frage, N. [1 ]
机构：
[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel
[2] NRC Negev, IL-84190 Beer Sheva, Israel
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 495卷 / 1-2期
关键词：
Wetting; Interface; Thermodynamics; B4C; Fe-B-C alloys; Sintering;
D O I：
10.1016/j.msea.2007.06.100
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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.
引用
收藏
页码：70 / 74
页数：5
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