摘要
孔隙是 C/C 复合材料结构中重要的组成部分,它直接影响着材料的疲劳行为,因此,在研究 C/C 复合材料的疲劳行为时,考察基体以及界面中孔隙的变化具有重要的意义。综述了 C/C 复合材料原始孔隙结构的特点,分析了在疲劳加载过程中碳/碳复合材料孔隙结构的演化规律,强调了孔隙结构变化对碳/碳复合材料疲劳强化所作出的积极贡献,进而为其疲劳机理的研究提供依据。
Porous structure is an important component in carbon/carbon(C/C)composites,which directly af- fects the fatigue behavior of materials.Therefore,it is necessary to discuss the evolution of porous structure in C/C composites under the fatigue loading.In this paper,the character of porous structure in original C/C composites is sum- marized and the evolution of porous structure after fatigue loading is analyzed.The positive effect of the porous struc- ture evolution after fatigue loading on the reinforcing behavior of fatigue is proposed as well,which provids a basis for further studies on the fatigue mechanisms of C/C composites.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2005年第7期100-103,共4页
Materials Reports
基金
国家杰出青年基金(50225210)
国家自然科学基金(50372050)
关键词
C/C复合材料
孔隙
界面弱化
疲劳机理
C/C composites
porous structure
weakening interface
fatigue mechanisms
