论文部分内容阅读
以高模高强石墨纤维Ｍ４０Ｊ增强铝基复合材料为研究对象，研究了真空液相压渗工艺中，偏磷酸铝粘接剂对纤维预制件抗压性能及复合材料力学性能的影响。结果表明：偏磷酸铝的含量、Ａｌ／Ｐ原子比及处理温度对预制件的抗压性能均有显著影响，加入５％偏磷酸铝粘接剂溶液的预制件，经５００°Ｃ处理后的抗压性能满足压渗要求，纤维保持了较好的平直度及分布均匀性，所制备的复合材料抗拉强度大于５００ＭＰａ，抗弯强度大于８００ＭＰａ
The effect of aluminum metaphosphate adhesive on the compressive properties of fiber preforms and the mechanical properties of composites was studied by using M40J reinforced aluminum matrix composites with high modulus and high strength graphite fibers as the research object. The results show that the content of aluminum metaphosphate, atomic ratio of Al / P and the treatment temperature have a significant effect on the compressive properties of the preform. The preform with 5% aluminum metaphosphate adhesive solution is treated by 500 ° C The compressive properties meet the requirements of infiltration, the fibers maintain a good flatness and distribution uniformity, the tensile strength of the prepared composite material is greater than 500MPa, flexural strength greater than 800MPa