Superior mechanical properties of lithium aluminosilicate composites by pyrolytic carbon intercalated carbon fibers/carbon nanotubes multi-scale reinforcements

doi:10.1016/j.ceramint.2021.08.180

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	Superior mechanical properties of lithium aluminosilicate composites by pyrolytic carbon intercalated carbon fibers/carbon nanotubes multi-scale reinforcements
	Zhu, Pengyu 2; Wang, Chi 2; Wang, Xinyu 2; Yang, Hua 3; Xu, Guirong 4; Qin, Chunlin 2; Xiong, Li 2; Wen, Guangwu 1; Xia, Long 2
刊名	CERAMICS INTERNATIONAL
	2021-12-01
卷号	47 期号:23 页码:32837-32846
关键词	Carbon fibers carbon nanotubes (CFs CNTs) multi-scale reinforcements Performance degradation Pyrolytic carbon (PyC) Lithium aluminosilicate (LAS) glass-ceramic Mechanical properties
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2021.08.180
英文摘要	Performance degradation always occurs in carbon fibers/carbon nanotubes (CFs/CNTs) multi-scale reinforced composites prepared by chemical vapor deposition (CVD) method. In this study, pyrolytic carbon (PyC) interlayers are introduced to overcome this problem, and the mechanism is studied in detail. The multi-scale reinforcements are combined with lithium aluminosilicate (LAS) glass-ceramic into ceramic matrix composites by slurry impregnation and hot pressing sintering. The results show that the PyC interlayers can protect the CFs from corrosion of the catalyst at high temperature, improve stress transfers and promote the synergy between various components. The CNTs and LAS matrix form a transition area, which causes deflection and shunting when cracks propagate. These factors have greatly increased the crack extension energy, so the mechanical properties have been greatly improved. The flexural strength, fracture toughness and work of fracture reach 602 +/- 55 MPa, 10.7 +/- 2 MPa m1/2, 4.6 +/- 0.7 kJ m- 2, respectively, which are 42.3%, 42.6% and 76.9% higher than CF/LAS. This work expands the study of the CFs/CNTs multi-scale reinforcements and the LAS composites, and provides a useful reference for the related research.
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000708577400002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/149978]
专题	理学院
作者单位	1.Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Shandong, Peoples R China 2.Harbin Inst Technol Weihai, Sch Mat Sci & Engn, Weihai 264209, Peoples R China; 3.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China; 4.Avic Harbin Aircraft Ind Grp Co LTD, Harbin 150066, Peoples R China;
推荐引用方式 GB/T 7714	Zhu, Pengyu,Wang, Chi,Wang, Xinyu,et al. Superior mechanical properties of lithium aluminosilicate composites by pyrolytic carbon intercalated carbon fibers/carbon nanotubes multi-scale reinforcements[J]. CERAMICS INTERNATIONAL,2021,47(23):32837-32846.
APA	Zhu, Pengyu.,Wang, Chi.,Wang, Xinyu.,Yang, Hua.,Xu, Guirong.,...&Xia, Long.(2021).Superior mechanical properties of lithium aluminosilicate composites by pyrolytic carbon intercalated carbon fibers/carbon nanotubes multi-scale reinforcements.CERAMICS INTERNATIONAL,47(23),32837-32846.
MLA	Zhu, Pengyu,et al."Superior mechanical properties of lithium aluminosilicate composites by pyrolytic carbon intercalated carbon fibers/carbon nanotubes multi-scale reinforcements".CERAMICS INTERNATIONAL 47.23(2021):32837-32846.