Microstructures and Mechanical Behavior of C/C Composites Prepared by ICVI Using n-propanol as Precursor
Source abstract
Abstract
以正丙醇为前驱体, N 2 为载气和稀释气体, 采用等温化学气相渗透(ICVI)工艺, 沉积温度为1050、1100、1150℃, 压力为6kPa, 对初始密度为0.43g/cm 3 的2D针刺炭毡进行致密化, 沉积96h制备出表观密度分别为1.64、1.68 和1.69/cm 3 的C/C复合材料. 考察了密度随沉积时间的变化规律, 利用三点弯曲测试了材料的弯曲强度, 采用偏光显微镜、扫描电子显微镜观察了材料的组织结构和断口形貌. 结果表明以正丙醇为前驱体, 采用ICVI工艺在1050和1150℃下制备的试样组织为高织构和中织构的混合组织, 1100℃制备的试样基体组织为均一的高织构, 其弯曲强度可达199.24MPa. 在本实验条件下, 并未发现正丙醇中的氧元素在高温下对炭纤维的腐蚀作用, 正丙醇可以作为前驱体制备高性能C/C复合材料.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Advanced Surface Polishing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (7)
Show source-provided references
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