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仿生设计的Al2O3/纤维增强树脂层状复合材料
引用本文:汪日志,冯庆玲,崔福斋,李恒德.仿生设计的Al2O3/纤维增强树脂层状复合材料[J].材料研究学报,1996,10(1):95-100.
作者姓名:汪日志  冯庆玲  崔福斋  李恒德
作者单位:清华大学
摘    要:把贝壳珍珠层的韧化机制和结构机理应用于陶瓷基复合材料的仿生设计中,制备出Al2O3/环氧树脂及Al2O3/芳纶纤维增强环氧树脂叠层仿珍珠层复合材料。三点弯曲试验表明,与单相Al2O3相比,Al2O3/环氧树复合材料的断裂功提高25%,而Al2O3/芳纶纤维增强环氧树脂的断裂功提高80倍Al2O3/环氧树脂复合材料的断裂形貌与珍珠层相似,裂缝曲折扩展;而Al2O3/芳纶纤维增强环氧树脂复合材料除具有

关 键 词:仿生设计  复合材料  纤维增强树脂  氧化铝  陶瓷基
收稿时间:1996-02-25
修稿时间:1996-02-25

DEVELOPMENT OF BIOMIMETIC DESIGNED ALUMINA / FIBRE REINFORCED EPOXY LAMINATED COMPOSITE
WANG Rizhi,FENG Qingling,CUI Fuzhail LI Hengde.DEVELOPMENT OF BIOMIMETIC DESIGNED ALUMINA / FIBRE REINFORCED EPOXY LAMINATED COMPOSITE[J].Chinese Journal of Materials Research,1996,10(1):95-100.
Authors:WANG Rizhi  FENG Qingling  CUI Fuzhail LI Hengde
Affiliation:Tsinghua University
Abstract:The structural and toughening mechanisms of nacre from mullusc shell were applied to the biomimetic design and synthesis of two kinds of ceramic matrix composites: Al2O3/Epoxy and Al2O3/Aramid fibre reinforced epoxy laminated composites. Three-bending tests show that the work of fracture of Al2O3/Epoxy composite is 25 percent higher than that of monolithic alumina, and the work of fracture of Al2O3/ Aramid fibre reinforced epoxy composite is 80 times higher than that of monolithic alumina. The cracks in both of the composites are always found to deflect at the organic layers, which is similar to the cracks in nacre. Besides, multi-cracking is also a common phenomenon in Al2O3 / fibre reinforced epoxy composite. The concept that designing structural ceramic composites has accorded to the structural and toughening mechanisms of natural biomaterials provides a new way to ceramic toughening.
Keywords:biomimetic design  ceramic toughening  laminated composite  
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