Infiltration kinetics of aluminum in silicon carbide compacts. Annual report
Infiltration kinetics of aluminum in silicon carbide compacts. Annual report
复制标题
铝在碳化硅压块中的渗透动力学。
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
D. Olson
中科院分区：
文献类型：
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作者：
G. Edwards;D. Olson
虽然金属基复合材料已被制造的各种技术，最成功的是固态工艺，如粉末冶金和扩散连接。液态金属工艺，如复合铸造、铸轧和浸渗，虽然不太成功，但可能更经济。如果不对浸渗行为和纤维/基体结合机理有更深入的了解，就无法充分认识液态金属浸渗技术制备碳化硅-铝基复合材料的优势。本文报道的渗透模型，考虑液体和预制体（无论是多孔压块或毛细管/管束）的物理性质。这些性质包括粘度、密度、表面张力和润湿性（在多孔压块的情况下为孔形状和尺寸）。这些模型已被评估的能力，从已知的物理性质的材料预测渗透行为。
Although metal-matrix composites have been fabricated by various techniques, the most successful are solid state processes such as powder metallurgy and diffusion bonding. Liquid-metal processes such as compucasting, pultrusion, and infiltration, while less successful, are potentially more economical. The advantages of producing silicon carbide-aluminum matrix composites by liquid-metal infiltration techniques can not be fully realized without an improved understanding of the infiltration behavior and the fiber/matrix bonding mechanisms. This paper reports on infiltration models which consider the physical properties of the liquid and preform (either porous compact or capillary/tube bundle). These properties include viscosity, density, surface tension, and wettability (pore shape and size in the case of the porous compact). The models have been assessed in terms of their ability to predict infiltration behavior from known physical properties of the materials.