Fabrication of laminated SiCw/SiC ceramic composites by CVI |
| |
Authors: | Yupeng Xie Laifei Cheng Liangjun Li Hui Mei Litong Zhang |
| |
Affiliation: | Science Technology on Thermostructural Composites Materials Laboratory, Northwestern Polytechnical University, Xi’an Shaanxi 710072, PR China |
| |
Abstract: | Laminated SiCw/SiC ceramic composites were prepared by chemical vapor infiltration (CVI) and tape casting, and the advantages of this method were investigated. The results showed that this method can increase strength of the composites by reducing the damage of SiC whiskers and increasing their volume fraction, and increase toughness of the composites by controlling the interfacial bonding between whiskers and matrix and inter-laminar bonding between layers. The volume fraction of whiskers reached 40 vol.%, and the flexural strength, tensile strength and fracture toughness were 315 MPa, 158 MPa and 8.02 MPa m1/2, respectively. Interfacial and interlaminar crack deflection and bridging were observed. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|