[1]汪涵迪,张东生,李江涛,等.增密工艺对C/C-Cu复合材料组织和性能的影响[J].郑州大学学报(工学版),2023,44(03):110-115.[doi:10.13705/j.issn.1671-6833.2022.06.013]
　WANG Handi,ZHANG Dongsheng,LI Jiangtao,et al.Influence of Densification Process on Microstructure and Properties of C/C-Cu Composites[J].Journal of Zhengzhou University (Engineering Science),2023,44(03):110-115.[doi:10.13705/j.issn.1671-6833.2022.06.013]
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增密工艺对C/C-Cu复合材料组织和性能的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
44
期数:
2023年03期
页码:
110-115
栏目:
出版日期:
2023-04-30

文章信息/Info

Title:
Influence of Densification Process on Microstructure and Properties of C/C-Cu Composites
作者:
汪涵迪1;  张东生2;  李江涛2;  赵红亮1;  吴振卿1;  范宇恒1
1．郑州大学 材料科学与工程学院，河南 郑州 450001; 2．巩义市泛锐熠辉复合材料有限公司，河南 巩义 451200

Author(s):
WANG Handi1; ZHANG Dongsheng2; LI Jiangtao2; ZHAO Hongliang1; WU Zhenqing1; FAN Yuheng1
1.School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, 2.Gongyi City Pan -Rui Yihui Composite Materials Co., Ltd., Henan Gongyi 451200

关键词:
C/C-Cu 复合材料;  增密工艺;  化学气相渗透;  先驱体浸渍裂解转化;  C/C 增强体;  抗拉强度
Keywords:
C /C-Cu composite;  densification process;  chemical vapor infiltration;  precursor impregnation pyrolysis;  C /C reinforcement;  tensile strength
分类号:
TG161
DOI:
10.13705/j.issn.1671-6833.2022.06.013
文献标志码:
A
摘要:
为了探究增密工艺对 C/C-Cu 复合材料组织和性能的影响，分别采用化学气相渗透( CVI) 和先驱体浸渍 裂解转化( PIP) 对 2. 5D 针刺碳毡进行增密处理，得到由热解碳和树脂碳填充的 C/C 增强体，采用真空浸渗工艺 制备了 C/C-Cu 复合材料，并对其进行了组织分析和性能测试。结果表明: 采用 CVI 增密制备的 C/C-Cu 复合材 料中 TiC 界面层更薄，热解碳对碳纤维起到了较好的保护作用，垂直、平行方向的电阻率分别为 0. 72、0. 63 μΩ·m、 压缩强度分别为 367. 61、326. 87 MPa，抗拉强度为 62. 54 MPa，其导电性能、压缩强度、抗拉强度以及塑性均优于 PIP 增密，破坏机制为纤维拔出破坏; 采用 CVI 增密制备的 C/C-Cu 复合材料硬度值为 77. 28 HBW，略低于 PIP 增 密( 81. 59 HBW) ，但二者差异较小。综上，CVI 增密工艺更适合用来制备 C/C-Cu 复合材料的 C/C 增强体。
Abstract:
In order to explore the effect of densification process on the microstructure and properties of C/C-Cu composite, the 2.5D needle-punched carbon felt was densified by chemical vapor infiltration (CVI) and precursor impregnation pyrolysis (PIP) to obtain C/C reinforcements filled with pyrolytic carbon and resin carbon, respectively. C/C-Cu composite was prepared by vacuum infiltration process, and the microstructure analysis and performance test were carried out. The results showed that the TiC interface layer in the C/C-Cu composite prepared by CVI process was thinner, and the pyrolytic carbon had a better protection effect on the carbon fiber. The resistivity and compressive strength in the vertical (parallel) direction were 0.72(0.63)μΩ·m, 367.61(326.87)MPa, respectively.And the tensile strength is 62.54 MPa. Its electrical conductivity, compressive strength, tensile strength, and plasticity were better than those of PIP process. The failure mechanism was fiber pull-out failure. The hardness value of C/C-Cu composite prepared by CVI process was 77.28 HBW, which was slightly lower than that of PIP process (81.59 HBW), but the difference between them was small. In conclusion, the CVI densification process was more suitable for the preparation of C/C reinforcements of C/C-Cu composites.

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更新日期/Last Update: 2023-05-09