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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >A diffusion bonding model for the consolidation process of matrix-coated fiber-reinforced composites
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A diffusion bonding model for the consolidation process of matrix-coated fiber-reinforced composites

机译：基质包覆纤维增强复合材料固结过程的扩散结合模型

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摘要

An analytical model of the consolidation process of NiAl matrix-coated Al_2O_3 fibers (MCFs) during diffusion bonding is presented. Several densification mechanisms are considered to quantify the diffusion bonding kinetics. A simple void geometry and its evolution during hot pressing are addressed. Also primary creep is accounted for in the model, and it is demonstrated that primary creep contributes the most important consolidation mechanism during hot pressing. A comparison of experimental results and model predictions based on these microstructural mechanisms shows good agreement. The model lends itself for a general prediction of the consolidation process of matrix-coated ceramic fiber-reinforced metallic and intermetallic matrix composites.
机译：提出了NiAl基体包覆Al_2O_3纤维在扩散结合过程中固结过程的解析模型。考虑了几种致密化机制来量化扩散键合动力学。解决了简单的空隙几何形状及其在热压过程中的演变。该模型还考虑了初级蠕变，并且证明了初级蠕变是热压过程中最重要的固结机理。基于这些微观结构机理的实验结果和模型预测的比较显示出很好的一致性。该模型适用于对基体涂覆的陶瓷纤维增强的金属和金属间基体复合材料固结过程的一般预测。

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