针对酚醛先驱体C/C复合材料液相浸渍制备工艺各组分相的化学转化特性,基于Arrhenius方程建立了C/C复合材料液相浸渍制备工艺力学模型,详细分析了固化-炭化和石墨化两个重要的工艺阶段各组分相的体积变化规律,得到的气孔体积分数与Micro-CT系统扫描处理的细编穿刺C/C复合材料微结构图像中气孔体积分数相吻合,并结合均匀化方法对制备过程材料基体有效弹性模量进行了预测.结果表明:材料基体的有效弹性模量随着致密化次数的增加而增大,在每一次致密化过程中材料基体的有效弹性模量先增大后减小,石墨化工艺过程中材料基体的有效弹性模量达到某一值后保持平稳.
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