Nondestructive damage sensitivity and reinforcing effect of carbon nanotube/epoxy composites using electro-micromechanical technique

被引：92

作者：

Park, JM ^{[1
]}

Kim, DS

Lee, JR

Kim, TW

机构：

[1] Gyeongsang Natl Univ, Engn Res Inst, Dept Polymer Sci & Engn, Jinju 660701, South Korea

[2] Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305600, South Korea

[3] Korea Inst Machinery & Mat, Composite Mat Grp, Chang Won 641010, South Korea

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2003年 / 23卷 / 6-8期

关键词：

nanostructures; smart materials; electrical properties; non-destructive testing; apparent modulus;

D O I：

10.1016/j.msec.2003.09.131

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electro-micromechanical technique was applied for carbon nanotube (CNT)/epoxy composites using four-point probe method with their contents. The fracture of carbon fiber was detected by nondestructive acoustic emission (AE) relating to electrical resistivity under double-matrix composites (DMC) test. The damage sensitivity of fiber fracture, matrix deformation and fiber tension for CNT/epoxy composites increased with increasing CNT volume fraction. Reinforcing effect of 2.0 vol.% CNT obtained from mechanical properties and apparent modulus measurements was highest. For the concept of nondestructive evaluation, damage sensitivity and reinforcing effect of carbon nanocomposites could be obtained from the electrical volume and contact resistivity measurement with AE. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：971 / 975

页数：5

共 12 条

[1] Mechanical and electrical properties of a MWNT/epoxy composite [J].