Fabrication and properties of carbon fiber reinforced Al2O3-20%Ni metal-ceramic composites

doi:10.13801/j.cnki.fhclxb.20170310.001

	Fabrication and properties of carbon fiber reinforced Al2O3-20%Ni metal-ceramic composites
	Wang, Min 1; Jia, Jiangang 1; Guo, Tieming 2; Wang, Hailong 2
刊名	Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
	2017-12-01
卷号	34 期号:12 页码:2778-2784
关键词	Alumina Aluminum oxide Bending strength Carbon fibers Cermets Hardness Hot pressing Metal pressing Morphology Nickel Sintering Sol-gel process Sol-gels Volume fraction Carbon fiber reinforced Fracture morphology High temperature Hot pressing sintering Sintering process Strength and toughness Toughening mechanisms Well-dispersed
ISSN号	10003851
DOI	10.13801/j.cnki.fhclxb.20170310.001
英文摘要	The CF/Al2O3-20% Ni metal-ceramic composites with 0%, 5%, 10% and 15% volume fraction of carbon fiber (CF) were prepared by sol-gel method and hot-pressing sintering. The phase composition, surface and fracture morphology were analyzed by XRD, SEM and EDS. The effect of CF content on CF/Al2O3-20%Ni hardness, bending strength, fracture toughness was studied. The fracture morphology of composites was analyzed by SEM and its mechanism was discussed. The results show that CF/Al2O3-20% Ni composites with well dispersed CF and evenly distributed Ni particles was obtained, and can prevent the loss CF in the sintering process at high temperature by the formation of α-Al2O3 protective film layer on the CF surface. With the increase of volume fraction of CF, The hardness of the CF/Al2O3-20% Ni composites reduce, and its bending strength and fracture toughness first increase and then decrease. When the CF volume fraction is 10%, the bending strength and fracture toughness reach the maximum values, which increase by 79% and 134%, respectively, compared with the composites without CF. The addition of CF improves the strength and toughness of the CF/Al2O3-20%Ni composites. The toughening mechanism of CF/Al2O3-20%Ni is CF pull out, bridge and disbonding. © 2017,Chinese Society for Composite Materials. All right reserved.
语种	中文
出版者	Beijing University of Aeronautics and Astronautics (BUAA)
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114599]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou; 730050, China; 2.School of Materials Science and Engineering, Lanzhou University and Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Min,Jia, Jiangang,Guo, Tieming,et al. Fabrication and properties of carbon fiber reinforced Al2O3-20%Ni metal-ceramic composites[J]. Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica,2017,34(12):2778-2784.
APA	Wang, Min,Jia, Jiangang,Guo, Tieming,&Wang, Hailong.(2017).Fabrication and properties of carbon fiber reinforced Al2O3-20%Ni metal-ceramic composites.Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica,34(12),2778-2784.
MLA	Wang, Min,et al."Fabrication and properties of carbon fiber reinforced Al2O3-20%Ni metal-ceramic composites".Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica 34.12(2017):2778-2784.