Preparation of silicon coated-carbon fiber reinforced HA bio-ceramics for application of load-bearing bone

2020 ◽  
Vol 46 (6) ◽  
pp. 7903-7911
Author(s):  
Xueni Zhao ◽  
Jiamei Zheng ◽  
Weigang Zhang ◽  
Xueyan Chen ◽  
Zhenzhen Gui
Keyword(s):  
Carbon Fiber ◽  
Fiber Reinforced ◽  
Load Bearing ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon

Influence of different surface-coated carbon fibers on the properties of the poly(phenylene sulfide) composites

2018 ◽  
Vol 53 (8) ◽  
pp. 1123-1132 ◽  
Author(s):  
Bedriye Ucpinar ◽  
Ayse Aytac
Keyword(s):  
Differential Scanning Calorimetry ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Mechanical Analysis ◽  
Fiber Reinforced ◽  
Scanning Calorimetry ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon ◽  
Scanning Electron ◽  
Phenylene Sulfide

This paper aims to study the effect of different surface coatings of carbon fiber on the thermal, mechanical, and morphological properties of carbon fiber reinforced poly(phenylene sulfide) composites. To this end, unsized and different surface-coated carbon fibers were used. Prepared poly(phenylene sulfide)/carbon fiber composites were characterized by using Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, tensile test, dynamic mechanical analysis, and scanning electron microscopy. Tensile strength values of the surfaced-coated carbon fibers reinforced poly(phenylene sulfide) composites are higher than the unsized carbon fiber reinforced poly(phenylene sulfide) composite. The highest tensile strength and modulus values were observed for the polyurethane-coated carbon fiber reinforcement. Dynamic mechanical analysis studies indicated that polyurethane-coated carbon fiber reinforced composite exhibited higher storage modulus and better adhesion than the others. Differential scanning calorimetry results show that melting and glass transition temperature of the composites did not change significantly. Scanning electron microscopic studies showed that polyurethane and epoxy-coated carbon fibers exhibited better adhesion with poly(phenylene sulfide).

The Effect of Aluminum Content on TiO2 Coated Carbon Fiber Reinforced Magnesium Alloy Composites

2014 ◽  
Vol 488-489 ◽  
pp. 30-35 ◽  
Author(s):  
Cun Juan Xia ◽  
Ming Liang Wang ◽  
Hao Wei Wang ◽  
Cong Zhou
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Interfacial Microstructure ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Alloy Matrix ◽  
Casting Technique ◽  
Al Content ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon

The interface between the reinforcement and the matrix is significant to metal matrix composites. The effect of aluminum (Al) content on interfacial microstructure and mechanical properties of TiO2coated carbon fiber reinforced magnesium matrix composites by squeeze casting technique have been studied (C/Mg). Mg-2wt%Al and AZ91D were used as alloy matrix. The obtained results indicate that the carbon fibers in both kinds of composites are well protected by TiO2coating, without any interfacial brittle carbide phase observed. The flexural strength of Cf-TiO2/AZ91D (1009MPa) composites is 26.5% lower than that of Cf-TiO2/Mg-2Al (1277MPa) composites. The lath-shaped precipitates of Mg17Al12in AZ91D composites lead to the mechanical properties decrease.

Stress of Carbon Fiber Reinforced Polymer Tendons in Prestressed Simply Supported Beams

2013 ◽  
Vol 689 ◽  
pp. 353-357
Author(s):  
Chong Xi Bai ◽  
Xin Yan Shao ◽  
Qiu Ping Wang
Keyword(s):  
Carbon Fiber ◽  
Bearing Capacity ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Simply Supported ◽  
Reinforced Polymer ◽  
Carbon Fiber Reinforced

The law of stress increment of unbonded carbon fiber reinforced polymer (CFRP) tendons at service stage and flexural load bearing capacity limit state is unclear, so it is difficult to accurately calculate crack width, deflection and load bearing capacity. In order to calculate the stress of CFRP tendons, deformation compatibility condition and moment-curvature analysis method are used to compile nonlinear full-range analysis programs of simply supported concrete beam partially prestressed with unbonded CFRP tendons. The computing results of stress in CFRP tendons are in good agreement with the tested results as a whole, so it indicates that the simulation analysis programs are reliable.

scholarly journals Mechanical Properties of SiO2-Coated Carbon Fiber-Reinforced Mortar Composites with Different Fiber Lengths and Fiber Volume Fractions

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Gwang-Hee Heo ◽  
Jong-Gun Park ◽  
Ki-Chang Song ◽  
Jong-Ho Park ◽  
Hyung-Min Jun
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Flexural Strength ◽  
Carbon Fibers ◽  
Cement Matrix ◽  
Fiber Reinforced ◽  
Fiber Volume ◽  
Volume Fractions ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon

In the present study, SiO2 particles were coated on the surface of carbon fibers by means of chemical reaction of silane coupling agent (glycidoxypropyl trimethoxysilane, GPTMS) and colloidal SiO2 sol to improve the interfacial bonding force between fibers and matrix in cement matrix. The surface of the modified carbon fibers was confirmed through a scanning electron microscope (SEM). The mechanical properties of SiO2-coated carbon fiber mortar and uncoated carbon fiber mortar with different fiber lengths (6 mm and 12 mm) and fiber volume fractions (0.5%, 1.0%, 1.5%, and 2.0%) were compared and analyzed. The experimental results show that the flow values of the carbon fiber mortar were greatly disadvantageous in terms of fluidity due to the nonhydrophilicity of fibers and fiber balls, and the unit weight decreased significantly as the fiber volume fractions increased. However, the air content increased more or less. In addition, regardless of whether the fibers were coated, the compressive strength of carbon fiber-reinforced mortar (CFRM) composite specimens tended to gradually decrease as the fiber volume fractions increased. On the other hand, in case of the SiO2-coated CFRM composite specimens, the flexural strength was significantly increased compared to uncoated CFRM composite specimens and plain mortar specimens, and the highest flexural strength was obtained at 12 mm and 1.5%, particularly. It can be seen that the new carbon fiber surface modification method employed in this study was very effective in enhancing the flexural strength as cement-reinforcing materials.

Effect of Mechanical Properties of SiO₂ Coated Carbon Fiber Reinforced Mortar Composites

2020 ◽  
Vol 32 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Gwang-Hee Heo ◽  
Ki-Chang Song ◽  
Jong-Gun Park ◽  
Jong-Ho Park ◽  
Hyung-Min Jun
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon

Study on the Interfacial Behavior of Clay-Coated Carbon Fiber-Reinforced PEI Composites

2012 ◽  
Vol 51 (8) ◽  
pp. 861-865 ◽  
Author(s):  
Gang Tang ◽  
Zhaoliang Zang ◽  
Daofang Chang ◽  
Gaofeng Wei ◽  
Dongmei Wang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Fiber Reinforced ◽  
Interfacial Behavior ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon

Surface Modification of Carbon Fiber by Polymer Emulsions and Mechanical Property of Modified Carbon Reinforced Concrete

2011 ◽  
Vol 233-235 ◽  
pp. 2002-2005 ◽  
Author(s):  
Dong Lin ◽  
Chao Jin Wang ◽  
Feng Bo Dong ◽  
Song Lou ◽  
Chong Qi Shou
Keyword(s):  
Mechanical Property ◽  
Tensile Strength ◽  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Cement Mortar ◽  
Fiber Reinforced Concrete ◽  
Coal Pitch ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon

Four kinds of polymer emulsions were coated on the surface of coal pitch carbon fiber using atomized flow static coating method. The surface morphology of the carbon fiber after modification was analyzed by fluorescence microscope.The tensile strength of coated carbon fiber in the cement mortar and the mechanical property of the coated carbon fiber reinforced concrete were tested. The results showed that all the polymer emulsions were coated successfully on the surface of carbon fiber. The tensile strength of the coated carbon fiber in the cement mortar increased obviously, specially for the carbon fiber coated by meta chloride copolymer emulsion, whose tensile strength improved by 61%. The tensile strength of the coated carbon fiber reinforced concrete increased by 11%, the fracture energy increased by 47% and the max crack width increased by 18.5% when the content of the carbon fiber coated by meta chloride copolymer was 1.7 kg/m3.

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