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所属单位：材料科学与技术学院

发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS

关键字：Vacuum pressure infiltration 3D needle-punched C-f/SiC-Al Microstructure Compressive strength

摘要：In the present study, 3D needle-punched C-f/SiC-Al composites were prepared by precursor infiltration and pyrolysis (PIP) and vacuum pressure infiltration processes. The microstructure and mechanical properties of the as-prepared 3D needle-punched C-f/SiC-Al composites were investigated in comparison to the porous 3D needle-punched C-f/SiC composites and the dense 3D needle-punched C-f/SiC composites with the same carbon fiber fabric. The results showed that the open porosity of 3D needle-punched C-f/SiC -Al composites was 4.63%, while the open porosity of the porous 3D needle-punched C-f/SiC composites and the dense 3D needle-punched C-f/SiC composites was 27.23% and 11.68%, respectively. Furthermore, the compressive strength of 3D needle-punched C-f/SiC-Al composites was significantly improved compared to the porous 3D needle-punched C-f/SiC composites, increasing from 168 +/- 17 MPa to 445 +/- 15 MPa, which was approached that of the dense 3D needle-punched C-f/SiC composites (451 +/- 32 MPa). The microstructural investigations revealed that most of the pores were filled with Al alloy, improving the bearing capacity of the matrix of 3D needle-punched C-f/SiC composites. (C) 2019 Elsevier B.V. All rights reserved.

ISSN号：0925-8388

是否译文：否

发表时间：2019-09-30

合写作者：Liao, Jiahao,李斌斌,Liu, Jiabao,关天茹,Yu, Shengjie,Tang, Kaiyuan,Wu, Qiong,Wang, Yang

通讯作者：陈照峰