固体火箭技术Issue(6)：868-872,5.DOI:10.7673/j.issn.1006-2793.2014.06.024
气体流场对C／C复合材料CVI致密化效果的影响
Influence of gas flow field on CVI densification effect of C/C composite
王洲 1邓红兵 2崔红 1王坤杰 2李晋1
作者信息
- 1. 西安航天复合材料研究所，西安 710025
- 2. 高性能碳纤维制造及应用国家地方联合工程研究中心，西安 710089
- 折叠
摘要
Abstract
Flat needling carbon felts were infiltrated with various inclined angles and gas admission methods, using propylene as carbon source. Density distribution, open porosity, texture of the infiltration samples were characterized by using industrial CT, dielectric soak method and polarized⁃light microscopy. Under the condition of inclined angle 17° and front gas inlet, density of the infiltrated sample reaches 1.45 g/cm3 after infiltration for 102 h. The density is increasing slightly and the open porosity is decrea⁃sing gradually, from the bottom to the top of the samples. Texture of pyrolytic carbon in the samples belongs to smooth laminar main⁃ly. Extinction angle of the samples were measured and the results show that the orientation degree of the texture increases from the bottom to the top of the samples infiltrated with inclined angle of 0° and 17° under back gas inlet. The growth trends of the texture correspond to the design of the materials used for nozzle divergent.关键词
C/C复合材料/丙烯/化学气相渗透Key words
carbon/carbon composite/propylene/chemical vapor infiltration分类
航空航天引用本文复制引用
王洲,邓红兵,崔红,王坤杰,李晋..气体流场对C／C复合材料CVI致密化效果的影响[J].固体火箭技术,2014,(6):868-872,5.
