Thermal aging of fiberglass/carbon-fiber hybrid composites

被引：73

作者：

Barjasteh, E. ^{[1
]}

Bosze, E. J. ^{[2
]}

Tsai, Y. I. ^{[1
]}

Nutt, S. R. ^{[1
]}

机构：

[1] Univ So Calif, Dept Chem Engn & Mat Sci, Los Angeles, CA 90089 USA

[2] Composite Technol Corp, Irvine, CA 92614 USA

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2009年 / 40卷 / 12期

关键词：

Carbon-fiber; Glass-fiber; Environmental degradation; Thermal oxidation; ORGANIC MATRIX COMPOSITES; MECHANICAL-PROPERTIES; EPOXY COMPOSITE; PMR-15; RESIN; OXIDATION; MOISTURE;

D O I：

10.1016/j.compositesa.2009.09.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal oxidation of a unidirectional carbon-fiber/glass-fiber hybrid composite was investigated to determine oxidation kinetics and degradation mechanisms. The epoxy composite rods were comprised of a carbon-fiber core and a glass-fiber shell. A reaction-diffusion model was developed for each of the two hybrid sections to obtain the oxygen-concentration profile and the thickness of the oxidized layer (TOL) within the composite rods. The TOL was measured experimentally for samples exposed at 180 degrees C and 200 degrees C for up to 8736 h, and measured values were similar to the modeling predictions. The glass-fiber shell functioned as a protective layer, limiting the oxidation of carbon-fiber core. A relationship was derived relating TOL to tensile strength of the hybrid composite. The tensile strength remained essentially unchanged by thermal oxidation after 52 weeks of exposure. Inspection of thermally aged capped rods showed no cracking after long-term exposures. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2038 / 2045

页数：8

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