PIP工艺制备Cf/SiC-ZrB2陶瓷基复合材料的研究

以聚碳硅烷和硼化锆前驱体为原料，采用前驱体浸渍裂解工艺制备C_f/SiC-ZrB₂复合材料，首先研究了粘度对前驱体溶液浸渍效率和材料致密度的影响，进而研究了浸渍压力等条件对材料性能的影响。结果表明：合理的溶液组分配比关系到混合溶液的粘度，是影响浸渍性能的主要因素；真空加压浸渍的方法可以减少制备周期，快速提高材料致密度，对材料的各方面性能都有明显的改善。

Fabrication of Cf/SiC-ZrB2 Composites by PIP Process

Using PCS and ZrB₂ precursor as raw materials, we prepared C_f/SiC-ZrB₂ composites through precursor infiltration and pyrolysis process(PIP). Firstly, we studied the influence of viscosity on the efficiency of precursor infiltration and density of the composites. Then the effect of infiltration pressure on the performance of composite materials was studied. The results are that the viscosity of the mixed solution depended on the component proportion of the solution, which are the main influencing factors of the performance of infiltration. Through vacuum-pressure infiltration method, the fabrication period can be reduced, so the composites can be densified faster and the performance of the materials can be improved greatly.