沥青基碳/碳复合材料的弯曲性能
Flexural Properties of Pitch-based Carbon/Carbon Composites
摘 要
采用三点弯曲法测试了单向和三维四向碳纤维增强的两种沥青基碳/碳(C/C)复合材料(1D-C/C和3D-C/C)在室温及1 800 ℃高温时的弯曲性能,分析了增强体结构、温度对C/C复合材料弯曲性能的影响,并探讨了其弯曲断裂时的界面机制.结果表明:3D-C/C的弯曲模量高于1D-C/C的,但其抗弯强度却明显低于1D-C/C的;1D-C/C的弯曲断裂呈脆性断裂,而3D-C/C的弯曲断裂则表现出明显的假塑性特征;对同一种增强体结构的沥青基C/C复合材料,在1 800 ℃时的弯曲性能高于其在室温时的.
三点弯曲
抗弯强度
C/C composite
three-point bending
flexural strength
Abstract
Flexural properties of unidirectional carbon fiber reinforced pitch-based carbon/carbon (C/C) composites (1D-C/C) and 3D(dimension) & 4D (direction) braided carbon fiber reinforced pitch-based C/C composites (3D-C/C) were tested by three-point bending beams at room temperature and 1 800 ℃ respectively.Effects of reinforcement structures and temperatures on flexural properties of the pitch-based C/C composites were analyzed,and the interface mechanisms in flexural failures was discussed.The results show that the flexural modulus of 3D-C/C was higher than that of 1D-C/C,while the flexural strength of 3D-C/C was lower than that of 1D-C/C obviously.The flexural failure of 1D-C/C was brittle,but that of 3D-C/C was pseudoplastic.Flexural properties of the pitch-based C/C composites at 1 800 ℃ were more excellent than those of the pitch-based C/C composites at room temperature.
中图分类号 V254.2
所属栏目 材料性能及其应用
基金项目
收稿日期 2008/7/8
修改稿日期 2009/2/20
网络出版日期
作者单位点击查看
备注袁辉(1981-),男,江苏盐城人,博士研究生.
引用该论文: YUAN Hui,WEN Wei-dong,CUI Hai-tao,XU Ying. Flexural Properties of Pitch-based Carbon/Carbon Composites[J]. Materials for mechancial engineering, 2009, 33(8): 65～68
袁辉,温卫东,崔海涛,徐颖. 沥青基碳/碳复合材料的弯曲性能[J]. 机械工程材料, 2009, 33(8): 65～68
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参考文献
【1】SCHMIDT D L,DAVIDSON K E,THEIBERT L S.Unique applications of carbon-carbon composite materials[J].SAMPE Journal,1999,35(3):27-39.
【2】李贺军,罗瑞盈.C/C复合材料在航空领域的应用研究现状[J].材料工程,1997(8):8-10.
【3】BLANCO C,CASAL E,GRANDA M,et al.Influence of fiber-matrix interface on the fracture behaviour of carbon-carbon composites[J].Journal of the European Ceramic Society,2003,23(15):2857-2866.
【4】YUDIN V E,GOYKHMAN M Y,BALIK K.Carbon/carbon composites based on a polyimide matrix with coal tar pitch[J].Carbon,2002,40(9):1427-1433.
【5】TZENG S S,PAN J H.Densification of two-dimensional carbon/carbon composites by pitch impregnation[J].Materials Science and Engineering A,2001,316(1/2):127-134.
【6】孙乐民,李贺军,张守阳.沥青基炭/炭复合材料的弯曲断裂特征[J].新型炭材料,2001,16(3):28-31.
【7】熊翔,黄伯云,李江鸿,等.准三维C/C复合材料的弯曲性能及其破坏机理[J].航空材料学报,2006,26(4):88-91.
【8】刘皓,李克智,李贺军.中间相沥青基碳/碳复合材料的组织与性能[J].材料工程,2006(5):21-24.
【9】袁辉.碳/碳复合材料刚度与强度预测模型研究[D].南京:南京航空航天大学,2009.
【10】石川敏功,长冲通.新炭素工业[M].陆玉俊,李杰,刘建东,译.哈尔滨:哈尔滨工业出版社,1990.
【11】FELDMAN L A.Residual Stress in a 3D Carbon-Carbon Composite,AD-A301942[R].Los Angeles:Aerospace Corp El Segundo Ca Lab Operations,1986.
【12】HIROSHI H,KEN G,SHINYA I,et al.Tensile strength and fiber/matrix interfacial properties of 2D-and-3D carbon/carbon composites[J].Journal of the European Ceramic Society,2005,25(4):535-542.
【2】李贺军,罗瑞盈.C/C复合材料在航空领域的应用研究现状[J].材料工程,1997(8):8-10.
【3】BLANCO C,CASAL E,GRANDA M,et al.Influence of fiber-matrix interface on the fracture behaviour of carbon-carbon composites[J].Journal of the European Ceramic Society,2003,23(15):2857-2866.
【4】YUDIN V E,GOYKHMAN M Y,BALIK K.Carbon/carbon composites based on a polyimide matrix with coal tar pitch[J].Carbon,2002,40(9):1427-1433.
【5】TZENG S S,PAN J H.Densification of two-dimensional carbon/carbon composites by pitch impregnation[J].Materials Science and Engineering A,2001,316(1/2):127-134.
【6】孙乐民,李贺军,张守阳.沥青基炭/炭复合材料的弯曲断裂特征[J].新型炭材料,2001,16(3):28-31.
【7】熊翔,黄伯云,李江鸿,等.准三维C/C复合材料的弯曲性能及其破坏机理[J].航空材料学报,2006,26(4):88-91.
【8】刘皓,李克智,李贺军.中间相沥青基碳/碳复合材料的组织与性能[J].材料工程,2006(5):21-24.
【9】袁辉.碳/碳复合材料刚度与强度预测模型研究[D].南京:南京航空航天大学,2009.
【10】石川敏功,长冲通.新炭素工业[M].陆玉俊,李杰,刘建东,译.哈尔滨:哈尔滨工业出版社,1990.
【11】FELDMAN L A.Residual Stress in a 3D Carbon-Carbon Composite,AD-A301942[R].Los Angeles:Aerospace Corp El Segundo Ca Lab Operations,1986.
【12】HIROSHI H,KEN G,SHINYA I,et al.Tensile strength and fiber/matrix interfacial properties of 2D-and-3D carbon/carbon composites[J].Journal of the European Ceramic Society,2005,25(4):535-542.
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