Manufacturing 2D carbon-fiber-reinforced SiC matrix composites by slurry infiltration and PIP process

详细信息	查看全文 | 推荐本文 |

• 作者：Yunzhou Zhu ; Zhengren Huang ; Shaoming Dong ; Ming Yuan ; Dongliang Jiang
• 关键词：B. Porosity ; B. Composite ; C. Mechanical properties ; Preceramic polymer
• 刊名：Ceramics International
• 出版年：2008
• 期刊代码：13_02728842
• 类别：ms
• 出版时间：July 2008
• 卷：34
• 期：5
• 页码：1201-1205
• 文件大小：507 K

摘要

Sub-micrometer SiC particles were firstly added to the preceramic solution in the first infiltration step to enhance the mechanical properties of 2D C_f/SiC composites fabricated via polymer infiltration and pyrolysis (PIP) process. The effects of pyrolysis temperature and SiC-filler content on microstructures and properties of the composites were systematically studied. The results show that the failure stress and fracture toughness increased with the increase of pyrolysis temperature. SiC filler of sub-micron scale infiltrated into the composites increased the mechanical properties. As a result, for the finally fabricated composite infiltrated with a slurry containing 40 wt.%SiC filler, the failure stress was doubled compared to that without SiC filler addition, and the fracture toughness reached ≈10 MPa m^1/2.