Sekulić D, Bozić D, Babić B, Stasić J, Stevanović M
Vinca Institute of Nuclear Sciences, PO Box 522, 11001 Belgrade, Serbia. pesikan.vin.bg.ac.yu
J Microsc. 2008 Dec;232(3):611-7. doi: 10.1111/j.1365-2818.2008.02126.x.
The effects of gamma-irradiation and moisture absorption on the mechanical properties of carbon fibres-epoxy resin composites were studied. The properties dominated by the matrix and fibre-matrix interface (interlaminar and in-plane shear strength) were measured at room temperature using standard tests. These tests were carried out before and after exposures to gamma irradiation and before and after immersion in water at 80 degrees C during 21 days. The dosage of gamma irradiation was up to 11.7 MGy. The micrographs of surfaces fractured in performed tests were observed on a scanning electron microscope. They were analyzed with consulting the stated effects on mechanical properties and the measured values of the glass transition temperature of tested coupons before and after irradiation and immersion in water. The obtained results show that moisture and irradiation, if they act one after the other, have a significant influence on the degradation of matrix-dominated mechanical properties of the tested carbon-epoxy composite.
研究了γ射线辐照和吸湿对碳纤维-环氧树脂复合材料力学性能的影响。在室温下，使用标准测试方法测量了由基体和纤维-基体界面主导的性能（层间和平面内剪切强度）。这些测试在γ射线辐照前后以及在80℃水中浸泡21天前后进行。γ射线辐照剂量高达11.7兆戈瑞。在扫描电子显微镜下观察了在进行的测试中断裂表面的显微照片。结合对力学性能的既定影响以及测试试样在辐照和浸泡在水中前后的玻璃化转变温度测量值对其进行了分析。所得结果表明，水分和辐照如果相继作用，会对测试的碳-环氧复合材料中由基体主导的力学性能降解产生显著影响。
