Interfacial shear behavior of 3D composites reinforced with CNT-grafted carbon fibers

2012 ◽  
Vol 43 (8) ◽  
pp. 1410-1418 ◽  
Author(s):  
Lin Yang ◽  
Xiaodong He ◽  
Lei Mei ◽  
Liyong Tong ◽  
Rongguo Wang ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Shear Behavior ◽  
Interfacial Shear

Treatment technology of carbon fibers under electromagnetic effects of different nature for production of high-durable carbon-filled plastics

2021 ◽  
Vol 0 (2) ◽  
pp. 2-6
Author(s):  
V. A. Nelyub ◽  
◽  
I. A. Komarov ◽  
Keyword(s):  
Ultraviolet Radiation ◽  
Plasma Treatment ◽  
Adhesion Strength ◽  
Carbon Fibers ◽  
Cold Plasma ◽  
Mechanical Characteristics ◽  
Treatment Method ◽  
Interfacial Shear ◽  
Treatment Technology ◽  
Electromagnetic Methods

The effect of pretreatment technologies of carbon fibers by different electromagnetic methods on their mechanical characteristics has been examined. The methods of cold plasma and ultraviolet radiation were used. Such a treatment improves adhesion strength of a metal coating with fibers for production of carbon-filled plastics with high interfacial shear durability. By experiments it has been found out that the plasma treatment method is the most effective. The study and experiment results are presented.

Interfacial Shear Behavior of Sapphire-Reinforced NiAi Composites

1990 ◽  
Vol 194 ◽  
Author(s):  
C. A. Moose ◽  
D. A. Koss ◽  
J. R. Hellmann
Keyword(s):  
Sliding Friction ◽  
Fiber Diameter ◽  
Friction Stress ◽  
Shear Behavior ◽  
Interfacial Shear ◽  
Interface Failure ◽  
Test Technique ◽  
Large Variability ◽  
Interfacial Sliding ◽  
Shear Process

AbstractThe interfacial shear behavior in near-equiatomic NiA1 reinforced by sapphire filaments has been examined at room temperature using a fiber pushout test technique. The loaddisplacement data indicate a large variability in the initial interface failure stress, although reverse push behavior indicates a comparatively constant interfacial sliding friction stress. The observed behavior suggests that the presence of asperities on the fiber surfaces and nonuniformities in fiber diameter require constrained plastic flow within the NiAl matrix in order for interfacial shear to occur. The location, shape, severity, and distribution of fiber asperities as well as the uniformity of fiber diameter are critical to the interfacial shear process.

Effect of Plasticizer of Sizing Agent on the Surface of Carbon Fibers and Interface of its Composites

2011 ◽  
Vol 337 ◽  
pp. 10-15 ◽  
Author(s):  
Huan Xia Zhang ◽  
Amin Cao ◽  
Yong Kang Luo ◽  
Li Wei
Keyword(s):  
Contact Angle ◽  
Carbon Fibers ◽  
Photoelectron Spectroscopy ◽  
Interfacial Shear Strength ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Interfacial Shear ◽  
X Ray ◽  
Physical Changes ◽  
Contact Angle Analysis

In this work, carbon fibers were sized with different plasticizer of sizing agent in order to improve the performances of carbon fibers and the interface of carbon fibers composites. The chemical and physical changes induced by the treatments on carbon fibers surface are examined using dynamic contact angle analysis test(DCAT) , X-ray photoelectron spectroscopy (XPS). The interfacial shear strength (IFSS) of CF/EP composites are analysised by micro-droplet test. At the same time, the wear resistance was also studied in order to understand the effect of the plasticizer of sizing agent on the carbon fibers. The study shows that the 3# sized carbon fiber has the better wetting and surface energy. XPS results reveal that the 3# samples show a significant increase in oxygen-containing groups, such as–C–OH, -COOH, -C–O–C- and -COOR. 3#sizing agent also show better interface adhesion between fibers and matrix and has better wear resistant properties.

scholarly journals Measurement of interfacial adhesion in carbon/ epoxy composite after plasma surface treatment on carbon fibers

1994 ◽  
Vol 3 (1) ◽  
pp. 096369359400300 ◽  
Author(s):  
H. S. Ahn ◽  
P. Schwartz
Keyword(s):  
Electron Microscopy ◽  
Carbon Fibers ◽  
Interfacial Adhesion ◽  
Interfacial Shear Strength ◽  
Epoxy Composite ◽  
Interfacial Shear ◽  
Plasma Surface ◽  
Gas Plasma ◽  
Plasma Surface Treatment ◽  
Scanning Electron

After gas plasma treatment with oxygen for 1 min or argon for 2 min at a power of 30 watts, scanning electron microscopy (SEM) showed changes in the surface topography of carbon fibers. Microbond tests showed improvement of the interfacial shear strength (IFSS) between AS4 carbon fibers and bisphenol A based (DGEBA) epoxy resin.

Improving Interfacial Adhesion of Sub-Micro PA6 Composites with De-Sized Carbon Fiber

2017 ◽  
Vol 890 ◽  
pp. 44-49
Author(s):  
Mohamed H. Gabr ◽  
Kiyoshi Uzawa
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
Photoelectron Spectroscopy ◽  
Interfacial Adhesion ◽  
Fiber Composites ◽  
Interfacial Shear ◽  
Conventional Heating ◽  
Carbon Fiber Composites ◽  
Sem Images ◽  
Acetone Treatment

In our previous study we showed the the potential of using of sub-micro Alumina/Titanium (ALTi) particles as a multifunctional reinforcement which can produce multifunctional polymer composites. This paper aims to investigate the interfacial shear properties for different contents of ALTi particles incorporated into PA6 with de-sized carbon fiber. By means of X-ray photoelectron spectroscopy (XPS), activated carbon atoms can be detected, which are defined as the carbon atoms conjunction with oxygen and nitrogen. Sizing removal can reduce the acid parameter of carbon fibers surface promoting bonding strength at the fiber/matrix interface which is a desirable property for the carbon fiber composites. XPS also, showed that epoxide group still appeared with using acetone treatment while disappeared with conventional heating at the oven for 25min ate 450oC. SEM images did not show any damage for the carbon fiber after heat treatment. Interfacial shear strength (IFSS) showed an improvement in interfacial adhesion with de-sizing carbon fiber than neat PA6.

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