细编穿刺碳/碳复合材料等离子火炬高温烧蚀性能研究  

Study of Ablation Behaviors of 3D Fine Weave Pierced Carbon/Carbon Composites Using Plasma Torch at High Temperature

作　　者：张巍[1] 张博明[1] 孟松鹤[1] 韩杰才[1] 

机构地区：[1]哈尔滨工业大学复合材料研究所,黑龙江哈尔滨150001

出　　处：《材料工程》2003年第5期23-25,共3页Journal of Materials Engineering

摘　　要：采用等离子火炬作为高温热源,研究了细编穿刺碳/碳复合材料高温烧蚀性能。研究结果表明:随着烧蚀区域从火焰中心到边缘的变化,材料的烧蚀特性从中心区域的以热力学烧蚀为主向靠近边缘区域的以热化学烧蚀为主过渡;碳基体和碳纤维的抗热力学烧蚀性能相当,而抗热化学烧蚀和抗氧化性,碳纤维则明显优于碳基体。A new method, used plasma torch as the heater, of testing the ablation behaviors of carbon/carbon composites at high temperature was developed, and the ablation resistance of 3D fine weave pierced carbon/carbon composites at high temperature was studied using this method It is concluded that ablation behaviors of the sample are changed from the center flame region predominantly influenced by thermomechanical attack to the region close to outer flame influenced mainly by thermochemical attack The thermomechanical ablation resistance of carbon matrix is equal to that of carbon fibers,but the resistance of thermochemical ablation of carbon fibers is significantly enhanced compared to that of carbon matrix

关 键 词：碳/碳复合材料 烧蚀 微观结构 

分 类 号：V258.3[一般工业技术—材料科学与工程]