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| 高性能针刺碳/碳复合材料的制备与性能 | |
| 引用本文： | 刘宇峰,俸翔,王金明,许正辉,李同起,焦星剑,王雅雷,熊翔.高性能针刺碳/碳复合材料的制备与性能[J].无机材料学报,2020,35(10):1105-1111. |
| 作者姓名： | 刘宇峰 俸翔 王金明 许正辉 李同起 焦星剑 王雅雷 熊翔 |
| 作者单位： | 航天材料及工艺研究所 先进功能复合材料技术重点实验室, 北京 100076 中南大学 粉末冶金研究院, 长沙 410083 |
| 基金项目： | 装发共用技术预研项目(41422020106);科工局基础科研项目(HTKJ2019KL703001);装发重点实验室基金项目(61429060102162906002) |
| 摘 要： | 为获得高性能针刺碳/碳复合材料, 拓展其应用领域, 通过优化针刺工艺参数, 设计并研制了不同结构参数的针刺预制体。采用沥青高压致密化工艺将针刺预制体制备成一系列针刺碳/碳复合材料, 研究了针刺碳/碳复合材料的微观结构、力学性能和热物理性能。结果表明, 针刺预制体的针刺深度、针刺密度以及短/长纤维配比等对碳/碳复合材料的力学性能和热物理性能影响显著。当针刺深度为12 mm、针刺密度为22针/cm 2、短/长纤维比例为1.0 : 4.8时, 针刺碳/碳复合材料表现出优良的综合性能, 拉伸、压缩、弯曲、面内剪切和层间剪切强度分别达到207、228、285、54和28 MPa。 |
| 关 键 词： | 碳/碳复合材料 针刺结构参数 力学性能 热物理性能 |
| 收稿时间： | 2019-11-29 |
| 修稿时间： | 2019-12-29 |
Preparation and Properties of High-performance Needled C/C Composites |
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| LIU Yufeng,FENG Xiang,WANG Jinming,XU Zhenghui,LI Tongqi,JIAO Xingjian,WANG Yalei,XIONG Xiang.Preparation and Properties of High-performance Needled C/C Composites[J].Journal of Inorganic Materials,2020,35(10):1105-1111. | |
| Authors: | LIU Yufeng FENG Xiang WANG Jinming XU Zhenghui LI Tongqi JIAO Xingjian WANG Yalei XIONG Xiang |
| Affiliation: | Science and Technology of Advanced Functional Composites Laboratory, Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China; Powder Metallurgy Research Institute, Central South University, Changsha 410083, China |
| Abstract: | To obtain high performance needled C/C composites, a series of needled non-woven carbon fiber felt with different characteristics was prepared. The needled C/C composites were prepared by means of high-pressure impregnation-carbonization, and their microstructure features, mechanical properties and thermo-physical properties of needled C/C composites were characterized. The investigation results show that the types of preform structure have obvious effects on the mechanical and thermo-physical properties of the C/C composites. When the preform is produced with key characteristics of needling depth at 12 mm, needling density at 22 pin/cm 2 and fiber web/weft less ply at 1.0:4.8, the needle C/C composites shows excellent comprehensive performance, with tensile strength, compression strength, flexural strength, in-plane shear strength, and interlaminar shear strength of 207, 228, 285, 54 and 28 MPa, respectively. |
| Keywords: | C/C composite needling characteristic mechanical property thermo-physical property |
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