scholarly journals Enhancing the Mechanical Strength for a Microwave Absorption Composite Based on Graphene Nanoplatelet/Epoxy with Carbon Fibers

2019 ◽  
Vol 09 (02) ◽  
pp. 230-248 ◽  
Author(s):  
Maryam Jahan ◽  
Richard Osuemeshi Inakpenu ◽  
Kuo Li ◽  
Guanglin Zhao
2021 ◽  
pp. 161638
Author(s):  
Ruoyu Chen ◽  
Xinxin Jin ◽  
Daqian Hei ◽  
Peng Lin ◽  
Feng Liu ◽  
...  

Author(s):  
Rundong Guo ◽  
Dong Su ◽  
Kailun Zou ◽  
Chao Zhang ◽  
Fangjie Cen ◽  
...  

RSC Advances ◽  
2019 ◽  
Vol 9 (53) ◽  
pp. 30685-30692 ◽  
Author(s):  
Sifan Zeng ◽  
Wanlin Feng ◽  
Shuyuan Peng ◽  
Zhen Teng ◽  
Chen Chen ◽  
...  

The SiOC ceramics coating modified carbon fibers improved anti-oxidation and refine microwave absorption properties.


Author(s):  
A Bakamal ◽  
R Ansari ◽  
MK Hassanzadeh-Aghdam

This paper presents a finite element analysis of the bending, buckling, and free vibration of the chopped carbon fiber/graphene nanoplatelet reinforced polymer hybrid composite plates. Both rectangular and circular composite plates are considered. The effective material properties of the chopped carbon fiber /graphene nanoplatelet reinforced hybrid composites are predicted using a multistep micromechanical model based on the Halpin–Tsai homogenization scheme. An inclusive microstructural assessment is accomplished by the evaluation of the influences of the volume fraction, length, thickness, and agglomeration of graphene nanoplatelets as well as the volume fraction, aspect ratio, and the alignment of the chopped carbon fibers on the mechanical behaviors of the chopped carbon fiber/graphene nanoplatelet hybrid composite plates. It is found that the bending, buckling, and vibration characteristics of hybrid composite structures are highly affected by the microstructural features. The addition of graphene nanoplatelets improves the stability of the chopped fiber-reinforced hybrid composite structures. The agglomeration of the graphene nanoplatelet into the polymer matrix leads to a degradation in the composite plate mechanical performances. Aligning the chopped carbon fibers significantly decreases the deflections, and increases the critical buckling loads and the natural frequencies of hybrid composite plates. Comparisons are conducted with the numerical results reported in literature that indicate good agreement with our results.


RSC Advances ◽  
2020 ◽  
Vol 10 (35) ◽  
pp. 20817-20826
Author(s):  
Jia-Cao Yang ◽  
Xiao-Jun Wang ◽  
Gang Zhang ◽  
Zhi-Mei Wei ◽  
Sheng-Ru Long ◽  
...  

The segregated structure prepared by controlling the dissolution process endows the composites with both excellent EMI SE and high mechanical strength.


2016 ◽  
Vol 687 ◽  
pp. 334-341 ◽  
Author(s):  
Yizao Wan ◽  
Teng Cui ◽  
Jian Xiao ◽  
Guangyao Xiong ◽  
Ruisong Guo ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5881
Author(s):  
Yeou-Fong Li ◽  
Hsin-Fu Wang ◽  
Jin-Yuan Syu ◽  
Gobinathan Kadagathur Ramanathan ◽  
Ying-Kuan Tsai ◽  
...  

In this study, aramid fiber (Kevlar® 29 fiber) and carbon fiber were added into concrete in a hybrid manner to enhance the static and impact mechanical properties. The coupling agent presence on the surface of carbon fibers was spotted in Scanning Electron Microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) graphs. The carbon fiber with a coupling agent affected the mechanical strength of the reinforced concrete. At 1% fiber/cement weight percentage, the hybrid fiber-reinforced concrete (HFRC) prepared using Kevlar fiber and carbon fiber of 12 and 24 mm in length under different mix proportions was investigated to determine the maximum mechanical strengths. From the test results, the mechanical strength of the HFRC attained better performance than that of the concrete with only Kevlar or carbon fibers. Foremost, the mix proportion of Kevlar/carbon fiber (50–50%) significantly improved the compressive, flexural, and splitting tensile strengths. Under different impact energies, the impact resistance of the HFRC specimen was much higher than that of the benchmark specimen, and the damage of the HFRC specimens was examined with an optical microscope to identify slippage or rupture failure of the fiber in concrete.


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