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Enhanced tensile properties of Al matrix composites reinforced with β-Si3N4whiskers
Zhang, Chenxu1,2; Yin, Jinwei1; Yao, Dongxu1; Zuo, Kaihui1; Xia, Yongfeng1; Liang, Hanqin1; Zeng, Yuping1
2017
Source PublicationComposites Part A: Applied Science and Manufacturing
ISSN1359835X
Volume102Pages:145-153
AbstractAl matrix composites reinforced with β-Si3N4whiskers (β-Si3N4w) were fabricated by hot pressing method. The microstructures showed that the whiskers were uniformly dispersed in the matrix and the Al/β-Si3N4interface was well bonded without interface reaction. Effects of β-Si3N4w content and sintering parameters on the densification and tensile behavior of composites were investigated. The results indicated that β-Si3N4w could both enhance the ultimate tensile strength (UTS) and maintain the ductility of Al matrix when the whisker content was 5 vol%, corresponding to an elongation at break and an UTS of 21.2% and 239 MPa, respectively. However, higher whisker content could improve UTS of composites to the maximum value of 312 MPa, which was 158 MPa higher than pure Al, while reducing elongation of composites. The fracture mechanism changed from ductile fracture to a combination of both ductile and brittle fracture mechanism with the increase of whisker content. © 2017 Elsevier Ltd
DOI10.1016/j.compositesa.2017.07.025
EI Accession Number20173204037777
EI KeywordsMetallic matrix composites
EI Classification Number531 Metallurgy and Metallography - 951 Materials Science
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25684
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Zhang, Chenxu,Yin, Jinwei,Yao, Dongxu,et al. Enhanced tensile properties of Al matrix composites reinforced with β-Si3N4whiskers[J]. Composites Part A: Applied Science and Manufacturing,2017,102:145-153.
APA Zhang, Chenxu.,Yin, Jinwei.,Yao, Dongxu.,Zuo, Kaihui.,Xia, Yongfeng.,...&Zeng, Yuping.(2017).Enhanced tensile properties of Al matrix composites reinforced with β-Si3N4whiskers.Composites Part A: Applied Science and Manufacturing,102,145-153.
MLA Zhang, Chenxu,et al."Enhanced tensile properties of Al matrix composites reinforced with β-Si3N4whiskers".Composites Part A: Applied Science and Manufacturing 102(2017):145-153.
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