Microstructure and mechanical properties of aluminum matrix composites reinforced with pre-oxidized beta-Si3N4 whiskers

doi:10.1016/j.msea.2018.03.038

	Microstructure and mechanical properties of aluminum matrix composites reinforced with pre-oxidized beta-Si3N4 whiskers
	Zhang, Chenxu 1; Yao, Dongxu ; Yin, Jinwei ; Zuo, Kaihui ; Xia, Yongfeng ; Liang, Hanqin ; Zeng, Yu-Ping
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2018
卷号	723 页码:109
关键词	Metal-matrix composites (MMCs) beta-Si3N4 whiskers Interface Microstructural analysis Mechanical properties
ISSN号	0921-5093
DOI	10.1016/j.msea.2018.03.038
英文摘要	Aluminum matrix composites (AMCs) reinforced with pre-oxidized beta-Si2N4 whiskers (beta-Si(3)N(4)w) were fabricated by hot pressing method. An amorphous SiO2 layer was formed on the surface of beta-Si(3)N(4)w aiming to enhance the interfacial bonding strength between aluminum and beta-Si3N4. The interfacial structure showed that beta-Si(3)N(4)w was well bonded with aluminum and no reaction products were formed near the interface. Effect of pre-oxidized beta Si(3)N(4)w on the mechanical properties of composites were investigated in detail. The results indicated that both the relative density and the mechanical behaviors of AMCs were increased. There was an optimum oxidation time for beta-Si(3)N(4)w. The maximum promotion of ultimate tensile strength (UTS) was 25 MPa, 11% higher than the composites reinforced with as-prepared whiskers, when the oxidation time was 1 h and the whisker content was 5 vol%. However, long time oxidation would deteriorate the mechanical properties of beta-Si(3)N(4)w, and thereby weaken the strengthening effect.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000430784400012
资助机构	This work was supported by the National Natural Science Foundation of China (No. 51302290 and No. 51501215), Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures (SKL201401), and the Shanghai Sailing Program (No. 16YF1412900). ; This work was supported by the National Natural Science Foundation of China (No. 51302290 and No. 51501215), Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures (SKL201401), and the Shanghai Sailing Program (No. 16YF1412900).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24989]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chenxu,Yao, Dongxu,Yin, Jinwei,et al. Microstructure and mechanical properties of aluminum matrix composites reinforced with pre-oxidized beta-Si3N4 whiskers[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,723:109, 117.
APA	Zhang, Chenxu.,Yao, Dongxu.,Yin, Jinwei.,Zuo, Kaihui.,Xia, Yongfeng.,...&Zeng, Yu-Ping.(2018).Microstructure and mechanical properties of aluminum matrix composites reinforced with pre-oxidized beta-Si3N4 whiskers.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,723,109.
MLA	Zhang, Chenxu,et al."Microstructure and mechanical properties of aluminum matrix composites reinforced with pre-oxidized beta-Si3N4 whiskers".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 723(2018):109.