Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC composites
BN and BN/SiC interphases were prepared on the surface of SiC tows by chemical vapor infiltration (CVI).The tows were furthered deposited a thick SiC layer to form mini SiC composites,whose tensile properties were tested.The surface and cross-section of interphase and mini-composites were observed b...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2021-07-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000157 |
| _version_ | 1797972429478297600 |
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| author | ZHAO Wen-qing QI Zhe LYU Xiao-xu JIAO Jian MA Zhuang ZHU Shi-zhen |
| author_facet | ZHAO Wen-qing QI Zhe LYU Xiao-xu JIAO Jian MA Zhuang ZHU Shi-zhen |
| author_sort | ZHAO Wen-qing |
| collection | DOAJ |
| description | BN and BN/SiC interphases were prepared on the surface of SiC tows by chemical vapor infiltration (CVI).The tows were furthered deposited a thick SiC layer to form mini SiC composites,whose tensile properties were tested.The surface and cross-section of interphase and mini-composites were observed by SEM.The surface roughness of the interphase was evaluated by AFM.The crystal structure of interphase was characterized by XRD and TEM.The results show that the BN interphase prepared by the CVI method follows Stranski-Krastanov growth mode,possessing smooth surface and weak bonds with the matrix.After heat treatment,the crystallinity and the surface roughness of BN interphase increase,and the bond with the matrix is also slightly enhanced.The BN/SiC interphase follows V-W growth mode,possessing rough surface and weak bonds with the matrix.The tensile strength of mini-composites with BN,HBN and BN/SiC interphases are 970,1050 MPa,and 1720 MPa,respectively. |
| first_indexed | 2024-04-11T03:48:18Z |
| format | Article |
| id | doaj.art-1c470103c489400e92bfe477fc205986 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T03:48:18Z |
| publishDate | 2021-07-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-1c470103c489400e92bfe477fc2059862023-01-02T02:21:53ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812021-07-01497717710.11868/j.issn.1001-4381.2020.00015720210708Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC compositesZHAO Wen-qing0QI Zhe1LYU Xiao-xu2JIAO Jian3MA Zhuang4ZHU Shi-zhen5School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSurface Engineering Division, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaSurface Engineering Division, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaSurface Engineering Division, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaBN and BN/SiC interphases were prepared on the surface of SiC tows by chemical vapor infiltration (CVI).The tows were furthered deposited a thick SiC layer to form mini SiC composites,whose tensile properties were tested.The surface and cross-section of interphase and mini-composites were observed by SEM.The surface roughness of the interphase was evaluated by AFM.The crystal structure of interphase was characterized by XRD and TEM.The results show that the BN interphase prepared by the CVI method follows Stranski-Krastanov growth mode,possessing smooth surface and weak bonds with the matrix.After heat treatment,the crystallinity and the surface roughness of BN interphase increase,and the bond with the matrix is also slightly enhanced.The BN/SiC interphase follows V-W growth mode,possessing rough surface and weak bonds with the matrix.The tensile strength of mini-composites with BN,HBN and BN/SiC interphases are 970,1050 MPa,and 1720 MPa,respectively.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000157interphasesurface roughnessmini-compositetensile strength |
| spellingShingle | ZHAO Wen-qing QI Zhe LYU Xiao-xu JIAO Jian MA Zhuang ZHU Shi-zhen Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC composites Cailiao gongcheng interphase surface roughness mini-composite tensile strength |
| title | Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC composites |
| title_full | Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC composites |
| title_fullStr | Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC composites |
| title_full_unstemmed | Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC composites |
| title_short | Effects of interphases on mechanical properties of CVI-mini SiC<sub>f</sub>/SiC composites |
| title_sort | effects of interphases on mechanical properties of cvi mini sic sub f sub sic composites |
| topic | interphase surface roughness mini-composite tensile strength |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000157 |
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