Tensile behaviour of poly(ether-ether-ketone) (PEEK)/Ni foam co-continuous phase composites

doi:10.1016/j.jmrt.2020.12.023

IMR OpenIR

	Tensile behaviour of poly(ether-ether-ketone) (PEEK)/Ni foam co-continuous phase composites
	Yang, X. G.1,2; Duan, D. L.1; Zhang, X.1; Jiang, S. L.1; Li, S.1; Zhang, H. C.2
通讯作者	Jiang, S. L.(sljiang@imr.ac.cn)
	2021
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	10 页码:110-120
摘要	In this work, eight types of poly (ether-ether-ketone) (PEEK)/Ni foam co-continuous phase composites (PEEK-Nis) were fabricated by hot pressing. Unfilled PEEK polymer was also prepared in two different methods: P-1 was prepared by the same method with PEEK-Nis, and P-2 was synthesised via extrusion. The tensile properties and fracture processes of PEEK-Nis were investigated and compared with those of unfilled PEEK polymer. Results showed that the stress-strain curves of PEEK-Nis exhibited elastic deformation, yielding and necking. Nickel foam could improve the tensile toughness and elongation-at-break of PEEK-Nis by increasing the number of edges or decreasing the pore quantities of Ni foam. The Young's moduli of PEEK-Nis were related only to metal content. The Young's moduli of PEEK-Nis increased with Ni volume content, and this relationship showed a secondary upward trend. The fracture surfaces of 10 kinds of materials after tensile tests were observed through scanning electron microscopy. Mirror, mist and hackle zones were found on the fracture surfaces of PEEK-Nis and the unfilled PEEK polymer. Morphological analysis showed that a crack could begin in one site and propagate within the material. However, the Ni prism structure could effectively decelerate crack propagation and even stop the crack, causing the crack to restart in the mirror zone. Two main parameters influence the tensile behaviours of PEEK-Nis including the quantity of Ni edge (or PPI value) and edge thickness. The Ni edge quantity of the foam played a positive role in the tensile behaviour of PEEK-Nis. However the effect of edge thickness has two side effects. In Ni foam, intergranular fracture replaced plastic fracture and degraded tensile performance if edge thickness exceeded 70 mm. Amongst all PEEK-Nis studied in this work, PEEK-NiA-1 exhibits the best performance and its tensile toughness was more than 1.6 times that of P-1. (C) 2020 The Author(s). Published by Elsevier B.V.
关键词	Co-continuous phase composite PEEK Nickel foam Tensile behaviour
资助者	Nation Natural Science Foundation of China
DOI	10.1016/j.jmrt.2020.12.023
收录类别	SCI
语种	英语
资助项目	Nation Natural Science Foundation of China[51275506] ; Nation Natural Science Foundation of China[51801207]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000621114200010
出版者	ELSEVIER
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/160945
专题	中国科学院金属研究所
通讯作者	Jiang, S. L.
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China 2.Dalian Maritime Univ, Transportat Equipment & Ocean Engn Coll, 1 Linghai Rd, Dalian 116026, Peoples R China
推荐引用方式 GB/T 7714	Yang, X. G.,Duan, D. L.,Zhang, X.,et al. Tensile behaviour of poly(ether-ether-ketone) (PEEK)/Ni foam co-continuous phase composites[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,10:110-120.
APA	Yang, X. G.,Duan, D. L.,Zhang, X.,Jiang, S. L.,Li, S.,&Zhang, H. C..(2021).Tensile behaviour of poly(ether-ether-ketone) (PEEK)/Ni foam co-continuous phase composites.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,10,110-120.
MLA	Yang, X. G.,et al."Tensile behaviour of poly(ether-ether-ketone) (PEEK)/Ni foam co-continuous phase composites".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 10(2021):110-120.