Mechanical, surface and interfacial characterisation of pitch and PAN-based carbon fibres
Mechanical, surface and interfacial characterisation of pitch and PAN-based carbon fibres
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DOI：
10.1016/s0008-6223(99)00266-3
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发表时间：
2000
期刊：
影响因子：
10.9
通讯作者：
M. Paiva;C. Bernardo;M. Nardin
中科院分区：
文献类型：
--
作者：
M. Paiva;C. Bernardo;M. Nardin
通过拉伸试验、XPS、SEM分析和润湿性测量，研究了沥青基和PAN基碳纤维的力学和表面特征。沥青基纤维有两种不同的几何形状，圆形和椭圆形（带状）横截面。采用等离子体氧化法对纤维表面进行处理。通过单丝复合材料的断裂试验测量了未处理和处理纤维的界面特性。的纤维的机械，表面和界面性能的表面处理的效果进行了测定和相关。结果表明，表面转移载荷的能力与其氧含量之间存在关系。最后，非轴对称对破碎试验中获得的界面参数的影响进行了评估。
The mechanical and surface characteristics of pitch and PAN-based carbon fibres were studied by tensile testing, XPS, SEM analysis and wetting measurements. The pitch-based fibres had two different geometries, with circular and ellipsoidal (ribbon-shaped) cross sections. Plasma oxidation was used to treat the surface of the fibres. The interfacial characteristics of untreated and treated fibres were measured by fragmentation tests of single filament composites. The effect of the surface treatment on the mechanical, surface and interfacial properties of the fibres was determined and correlated. It was shown that a relationship exists between the ability of the surface to transfer loads and its oxygen content. Finally, the influence of the non-axisymmetry on the interfacial parameters obtained in the fragmentation tests was assessed.