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| Microstructures of a SiC-ZrC Ceramic Fiber Derived from a Polymeric Precursor | |
| Ge, Min1; Lv, Xiaoxu2; Zhang, Hao1,3; Yu, Shouquan1; Lu, Zhenxi1; Zhang, Weigang1,3 | |
| 2020-05-01 | |
| Source Publication | MATERIALS
 |
| Volume | 13Issue:9Pages:10 |
| Abstract | Continuous ceramic fiber comprising silicon carbide-zirconium carbide (SiC-ZrC) binary phases was obtained through melt spinning, electron-beam curing and pyrolysis of a pre-ceramic precursor of polyzirconocenecarbosilanes (PZCS). After pyrolysis and heat treatment, ZrC particles with mean diameters of 15-20 nm were formed and homogeneously dispersed in a matrix of fine crystalline beta-SiC with an average grain size of 6-10 nm. Concentration of Zr in the fiber varies from 14.88% to 17.45% by mass. Fibers consisting of near-stoichiometric ZrC and SiC with little free carbon can be obtained through pyrolysis decarbonization of the as-cured fiber in hydrogen from room temperature to 1000 degrees C, and subsequently heat treatment in argon up to 1600 degrees C for 1 h. High-temperature treatment of these amorphous inorganic fibers leads to crystallization of the binary phases of beta-SiC and ZrC. The removal of free carbon under hydrogen results in more rapid growth of beta-SiC and ZrC crystals, in which obvious aggregation of the dispersed ZrC particles among the continuous beta-SiC matrix can be ascribed to a fast migration of Zr cation. |
| Keyword | ceramic fiber silicon carbide zirconium carbide |
| DOI | 10.3390/ma13092142 |
| Language | 英语 |
| WOS Keyword | SILICON-CARBIDE FIBER ; POLYCARBOSILANE ; COMPOSITES |
| Funding Project | National Key R&D Program of China[2018YFC1902401] ; National Natural Science Foundation of China[51471159] ; National Natural Science Foundation of China[51671180] ; National Natural Science Foundation of China[51472243] ; National Natural Science Foundation of China[51272251] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China |
| WOS ID | WOS:000535941100136 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/40814 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Weigang |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Aero Engine Corp China, Beijing Inst Aeronaut Mat, Natl Key Lab Adv Composites, Beijing 100095, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Ge, Min,Lv, Xiaoxu,Zhang, Hao,et al. Microstructures of a SiC-ZrC Ceramic Fiber Derived from a Polymeric Precursor[J]. MATERIALS,2020,13(9):10. |
| APA | Ge, Min,Lv, Xiaoxu,Zhang, Hao,Yu, Shouquan,Lu, Zhenxi,&Zhang, Weigang.(2020).Microstructures of a SiC-ZrC Ceramic Fiber Derived from a Polymeric Precursor.MATERIALS,13(9),10. |
| MLA | Ge, Min,et al."Microstructures of a SiC-ZrC Ceramic Fiber Derived from a Polymeric Precursor".MATERIALS 13.9(2020):10. |
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