我国碳纤维增强SiC基复合材料抗烧蚀改性进展研究  

Domestic Progress in Modified Ablation Resistance Property for Carbon Fiber Reinforced SiC Matrix Composites

作　　者：黄德欣 邱海鹏 刘善华 HUANG Dexin;QIU Haipeng;LIU Shanhua(AECC Shenyang Engine Research Institute, Shenyang 110015, China;AVIC Composite Corporation Ltd., Beijing 101300, China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015 [2]中航复合材料有限责任公司,北京101300

出　　处：《航空制造技术》2018年第5期95-100,共6页Aeronautical Manufacturing Technology

摘　　要：碳纤维增强SiC基复合材料(C/SiC)因具有耐高温、抗氧化、高比强和高比模等优点,被认为是代替高温合金作为热结构材料最有潜力的备选材料之一。由于碳纤维抗氧化性能差以及SiC基体在超高温烧蚀环境下氧化产物易挥发等问题,需要对C/SiC复合材料进行抗烧蚀改性。目前,针对C/SiC复合材料抗烧蚀改性的途径主要有优化碳纤维预制体结构和增加复合材料的致密度、采用超高温陶瓷改性SiC基体以及在复合材料表面制备抗烧蚀涂层。综述了国内关于C/SiC复合材料抗烧蚀改性的研究工作,同时提出了抗烧蚀改性制备工艺过程中面临的关键问题,为C/SiC复合材料抗烧蚀改性研究提供了思路。Carbon fiber reinforced SiC matrix composites(C/SiC)are considered one of the most potential alternativematerials for high temperature alloy due to a series of advantages,such as the high temperature resistance,oxidationresistance,high specific strength and high specific modulus,etc.However,the ablation resistance property of C/SiC compositesshould be modified because the oxidation of carbon fiber and the volatilization of SiC matrix oxidation products underthe ablation environments.At present,the methods for improving ablation resistance property of the C/SiC compositesmainly focus on optimizing the carbon fiber preform structure and enhancing the density for composites,modifying the SiCmatrix with ultra high temperature ceramics and fabricating anti-ablative coatings at the surface of C/SiC composites.Severaldomestic research work of modified ablation resistance C/SiC composites were reviewed and summarized,and the keyproblems faced for the preparation process of modified C/SiC composites were also proposed at the same time,which couldprovide a train of thought for the modified C/SiC composites research.

关 键 词：碳纤维 SiC基体 复合材料 抗烧蚀改性 涂层 

分 类 号：TB332[一般工业技术—材料科学与工程]