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在建立碳布叠层体心立方模型、碳布叠层立方模型和纤维束叠层模型典型预制体的宏观孔隙结构几何模型和气体传质数学模型的基础上 ,研究了CVI(chemicalvaporinfiltration)工艺过程中孔隙网络结构对气体比渗透率和材料致密度的影响。结果表明 :孔隙网络的结构与形状是决定反应气体在孔隙中的比渗透率和部件最终致密度的主要因素之一。
Based on the macroscopic pore structure geometric model and the gas mass transfer mathematical model of typical preform of carbon cloth laminated cubic model, carbon cloth laminated cubic model and fiber bundle laminated model, the effects of CVI (chemicalvaporinfiltration) process Effect of Mesoporous Network Structure on Gas Specific Permeability and Material Density. The results show that the structure and shape of the pore network is one of the main factors that determine the specific permeability of the reactive gas in the pores and the ultimate density of the components.