The forming process performance of polyborosilazane as RTM resin was investigated using rheometer, and the green composite preforms were further formed using RTM process, then the Cf/SiBCN ceramic matrix composites were fabricated via repeated impregnation-atmospheric pressure pyrolysis. Furthermore, the effect of RTM forming defects on thickness, density and mechanical properties of ceramic matrix composites was studied in detail. The results show that the polyborosilazane fully meets the requirements of RTM forming process to rheological properties. RTM forming defects will further increase the expansion of composites, and result in the obvious increase of the thickness of composites, meanwhile decrease the density of composites at the stage of pre-impregnation and pyrolysis, and finally the bending strength and modulus of ceramic matrix composites are also slightly decreased.
|Number of pages||6|
|Journal||Cailiao Gongcheng/Journal of Materials Engineering|
|Publication status||Published - 20 Jun 2015|
- Ceramic matrix composite
- SiBCN ceramic
ASJC Scopus subject areas
- Aerospace Engineering