scholarly journals Improved Ablative Properties of Nanodiamond-Reinforced Carbon Fiber–Epoxy Matrix Composites

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2035
Author(s):  
Umar Farooq ◽  
Muhammad Umair Ali ◽  
Shaik Javeed Hussain ◽  
Muhammad Shakeel Ahmad ◽  
Amad Zafar ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Epoxy Matrix ◽  
Erosion Rate ◽  
Erosion Resistance ◽  
Fiber Composite ◽  
Epoxy Composites ◽  
Temperature Profiles ◽  
Matrix Composites ◽  
Carbon Fiber Composite ◽  
Carbon Fiber Epoxy

The influence of nanodiamonds (NDs) on the thermal and ablative performance of carbon-fiber-reinforced–epoxy matrix compositeswas explored. The ablative response of the composites with 0.2 wt% and 0.4 wt% NDs was studied through pre-and post-burning morphologies of the composite surfaces by evaluation of temperature profiles, weight loss, and erosion rate. Composites containing 0.2 wt% NDs displayed a 10.5% rise in erosion resistance, whereas composites containing 0.4 wt% NDs exhibited a 12.6% enhancement in erosion resistance compared to neat carbon fiber–epoxy composites. A similar trend was witnessed in the thermal conductivity of composites. Incorporation of composites with 0.2 wt% and 0.4 wt% NDs brought about an increase of 37 wt% and 52 wt%, respectively. The current study is valuable for the employment of NDs in carbon fiber composite applications where improved erosion resistance is necessary.

scholarly journals Mechanical Properties of Epoxy and Its Carbon Fiber Composites Modified by Nanoparticles

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Fang Liu ◽  
Shiqiang Deng ◽  
Jianing Zhang
Keyword(s):  
Carbon Fiber ◽  
Composite Laminates ◽  
Fiber Composite ◽  
Fiber Composites ◽  
Epoxy Composites ◽  
Compressive Property ◽  
Carbon Fiber Composites ◽  
Carbon Fiber Composite ◽  
Compressive Performance ◽  
Carbon Fiber Epoxy

Compressive properties are commonly weak parts in structural application of fiber composites. Matrix modification may provide an effective way to improve compressive performance of the composites. In this work, the compressive property of epoxies (usually as matrices of fiber composites) modified by different types of nanoparticles was firstly investigated for the following study on the compressive property of carbon fiber reinforced epoxy composites. Carbon fiber/epoxy composites were fabricated by vacuum assisted resin infusion molding (VARIM) technique using stitched unidirectional carbon fabrics, with the matrices modified with nanosilica, halloysite, and liquid rubber. Testing results showed that the effect of different particle contents on the compressive property of fiber/epoxy composites was more obvious than that in epoxies. Both the compressive and flexural results showed that rigid nanoparticles (nanosilica and halloysite) have evident strengthening effects on the compression and flexural responses of the carbon fiber composite laminates fabricated from fabrics.

Experimental investigation and numerical simulation on continuous wave laser ablation of multilayer carbon fiber composite

2015 ◽  
Vol 231 (8) ◽  
pp. 674-682 ◽  
Author(s):  
Lianchun Long ◽  
Yao Huang ◽  
Jinfeng Zhang
Keyword(s):  
Laser Ablation ◽  
Temperature Distribution ◽  
Carbon Fiber ◽  
Continuous Wave ◽  
Fiber Composite ◽  
Rear Surface ◽  
Peak Temperature ◽  
Transient Temperature ◽  
Carbon Fiber Composite ◽  
Carbon Fiber Epoxy

Laser beam machining is one of the most widely used advanced processing techniques, which can be applied to compound materials. As a large number of photons are absorbed into the composite, the subsequent local heat storage, charring and potential delamination make the study for the effect of laser on complex materials become significant. In this paper, a carbon fiber epoxy composite laminated sheet is irradiated by continuous wave chemical oxygen iodine laser. The peak temperature of front surface, the temperature distribution of rear surface, and the appearance of ablation zone are presented. Further, based on the birth–death elements technique of finite element method, a three-dimensional model for simulating the transient temperature distribution and material removal has been developed under the same condition. The results reveal that the peak temperature of irradiated region ranges from 2800 K to 3100 K, and the center point shows a higher temperature rise rate than the surroundings in the irradiated zone. The measured data and predicted data are in a good consistency, which suggests that the numerical model is appropriate for simulating laser ablation of carbon fiber epoxy composites.

scholarly journals Thermal Conductivity of Carbon Nanoreinforced Epoxy Composites

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
C. Kostagiannakopoulou ◽  
E. Fiamegkou ◽  
G. Sotiriadis ◽  
V. Kostopoulos
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Multiwalled Carbon Nanotubes ◽  
Epoxy Matrix ◽  
Epoxy Composites ◽  
Graphite Nanoplatelets ◽  
Multiwalled Carbon ◽  
Micromechanical Models ◽  
Carbon Fiber Epoxy

The present study attempts to investigate the influence of multiwalled carbon nanotubes (MWCNTs) and graphite nanoplatelets (GNPs) on thermal conductivity (TC) of nanoreinforced polymers and nanomodified carbon fiber epoxy composites (CFRPs). Loading levels from 1 to 3% wt. of MWCNTs and from 1 to 15% wt. of GNPs were used. The results indicate that TC of nanofilled epoxy composites increased with the increase of GNP content. Quantitatively, 176% and 48% increase of TC were achieved in nanoreinforced polymers and nanomodified CFRPs, respectively, with the addition of 15% wt. GNPs into the epoxy matrix. Finally, micromechanical models were applied in order to predict analytically the TC of polymers and CFRPs. Lewis-Nielsen model with optimized parameters provides results very close to the experimental ones in the case of polymers. As far as the composites are concerned, the Hashin and Clayton models proved to be sufficiently accurate for the prediction at lower filler contents.

Effect of moisture absorption on the mechanical behavior of carbon fiber/epoxy matrix composites

2012 ◽  
Vol 48 (5) ◽  
pp. 1873-1882 ◽  
Author(s):  
E. Pérez-Pacheco ◽  
J. I. Cauich-Cupul ◽  
A. Valadez-González ◽  
P. J. Herrera-Franco
Keyword(s):  
Carbon Fiber ◽  
Mechanical Behavior ◽  
Epoxy Matrix ◽  
Moisture Absorption ◽  
Matrix Composites ◽  
Effect Of Moisture ◽  
Carbon Fiber Epoxy

Study of Interfacial Properties of Carbon Fiber Epoxy Matrix Composites Containing Graphene Nanoplatelets

2019 ◽  
Vol 20 (3) ◽  
pp. 633-641 ◽  
Author(s):  
Faizan S. Awan ◽  
Mohsin A. Fakhar ◽  
Laraib A. Khan ◽  
Tayyab Subhani
Keyword(s):  
Carbon Fiber ◽  
Epoxy Matrix ◽  
Interfacial Properties ◽  
Graphene Nanoplatelets ◽  
Matrix Composites ◽  
Carbon Fiber Epoxy

Effect of moisture absorption on the micromechanical behavior of carbon fiber/epoxy matrix composites

2011 ◽  
Vol 46 (20) ◽  
pp. 6664-6672 ◽  
Author(s):  
J. I. Cauich-Cupul ◽  
E. Pérez-Pacheco ◽  
A. Valadez-González ◽  
P. J. Herrera-Franco
Keyword(s):  
Carbon Fiber ◽  
Epoxy Matrix ◽  
Moisture Absorption ◽  
Matrix Composites ◽  
Effect Of Moisture ◽  
Carbon Fiber Epoxy
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