|
|||||
|
|
Comparative study of interphase evolution in polysiloxane resin-derived matrix containing carbon micro and nanofibers during thermal treatment |
|
| Affiliation: | 1. Science and Technology on Advanced Ceramic Fibers & Composites Laboratory, National University of Defense Technology, Changsha 410073, PR China;2. State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China;1. State Key Laboratory of Structural Analyses for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;2. Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China;1. Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Shandong University, Jinan 250061, China;2. Carbon Fiber Engineering Research Center, School of Material Science and Engineering, Shandong University, Jinan 250061, China;1. School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, PR China;2. Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin 150001, PR China;1. Department of Materials Engineering, College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, PR China;2. Multi-disciplinary Materials Research Center, Frontier Institute of Science and Technology, Xi''an Jiaotong University, Xi''an 710049, China;3. Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia |
| Abstract: | The work presents the results of research on composite materials made of silicon-containing polymer-derived ceramic matrix composites (PDC-Cs) and nanocomposites (PDC-NCs). Carbon micro and nanofibers (CFs and CNFs) were used as reinforcements. The interactions between carbon micro and nanofibers and polysiloxane matrix, as well as interphase evolution mechanism in composite samples during their heating to 1000 °C were studied. CF/resin and CNF/resin composites were prepared via liquid precursor infiltration process of unidirectionally aligned fibers. After heating to 700 °C–800 °C, decomposition of the resin in the presence of CNFs led to the formation of fiber/organic-inorganic composites with pseudo-plastic properties and improved oxidation resistance compared to as-prepared fiber/resin composites. The most favourable mechanical properties and oxidation resistance were obtained for composites and nanocomposites containing the maximum amount of carbon nanoparticles precipitated in the SiOC matrix during the heat treatment at 800 °C. The precipitated carbon phase improves fiber/matrix adhesion of composites. |
| Keywords: | A Ceramic fibrous nanocomposites (CMNCs) B Fiber/ceramic interphase C Liquid resin infiltration D Heat treatment E Mechanical properties |
| 本文献已被 ScienceDirect 等数据库收录！ | |