Fabrication of SiC_f/SiC composites by hybrid techniques of electrophoretic deposition and polymer impregnation and pyrolysis

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• 作者：Jie Yin^a ; ^b ; ^{jieyin@mail.sic.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; ^{yinjie19860810@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Sea-Hoon Lee^b ; ^{seahoon1@kims.re.kr" class="auth_mail" title="E-mail the corresponding author} ; Lun Feng^b ; Yunzhou Zhu^a ; Xuejian Liu^a ; Zhengren Huang^a
• 关键词：SiCf/SiC composites ; Electrophoretic deposition ; Polymer impregnation and pyrolysis ; Mechanical properties
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：1 November 2016
• 年：2016
• 卷：42
• 期：14
• 页码：16431-16435
• 全文大小：2693 K

文摘

In the current study, hybrid technologies consisting of electrophoretic deposition (EPD) and polymer impregnation and pyrolysis (PIP) were adopted in order to prepare high-performance SiC_f/SiC composites with high efficiency. Stable ethanol-based SiC suspensions were prepared for conducting EPD technique. PIP process by 7 cycles were performed for achieving a relative density as high as 91.9%. High-strength (289 MPa) SiC_f/SiC composites were fabricated, which displayed non-brittle fracture behavior. The relationship between microstructures and mechanical response was also investigated.