scholarly journals Development and Performance analysis of Novel Cast AA7076-Graphene Amine-Carbon Fiber Hybrid Nanocomposites for Structural Applications

2021 ◽  
Vol 12 (2) ◽  
pp. 1480-1489
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Hybrid Nanocomposites ◽  
Homogeneous Distribution ◽  
Metal Matrix Nanocomposites ◽  
Structural Applications ◽  
Percent Increase

Lightweight aluminum metal matrix nanocomposites play an important role in aerospace, military, automotive, electricity, and structural applications due to their improved mechanical, physical, and tribological properties. The hybrid nanocomposites were made using a motorized stir casting technique to achieve the desired mechanical properties. The composites were made using a mixture of graphene amine and carbon fibers in various weight proportions. The hybrid nanocomposites were created by varying the weight percentage (wt.%) of reinforcements in the AA7076 base matrix, such as 0.5wt % carbon fiber (micro filler) and 0.5wt % graphene (nanofiller). X-Ray Diffraction (XRD) and scanning electron microscopy (SEM) were used to investigate the homogeneous distribution of the fabricated hybrid composite. The mechanical properties of the hybrid composites were assessed using hardness and tensile measures. The composite with 1wt. percent reinforcements had a 50 percent increase in hardness and a 42 percent increase in tensile strength as compared to the base AA7076 matrix content. The wear tests were conducted using a pin-on-disc tribo tester, and the results showed that the hybrid composite (1wt.%) outperformed the AA7076 matrix material in terms of wear resistance.

scholarly journals Microstructure, Tensile Properties and Hardness Behavior of Al7075 Matrix Composites Reinforced With Graphene Nanoplatelets and Beryl Fabricated by Stir Casting Method

2019 ◽  
Vol 9 (1) ◽  
pp. 6761-6765 ◽  
Keyword(s):  
Tensile Strength ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Stir Casting ◽  
Hybrid Nanocomposites ◽  
Homogeneous Distribution ◽  
Casting Technique ◽  
Aluminum 7075 ◽  
Scanning Electron

In this research, an effort is made to familiarize and best potentials of the reinforcing agent in aluminum 7075 matrices with naturally occurring Beryl (Be) and Graphene (Gr) to develop a new hybrid composite material. A stir casting technique was adopted to synthesize the hybrid nanocomposites. GNPS were added in volume fractions of 0.5wt%, 1wt%, 1.5wt%, and 2wt% and with a fixed volume fraction of 6 wt.% of Beryl. As cast hybrid composites were microstructurally characterized with scanning electron microscopy and X-ray diffraction. Microstructure study through scanning electron microscope demonstrated that the homogeneous distribution reinforcement Beryl and GNPs into the Al7075 matrix. Brinell hardness and tensile strength of synthesized materials were investigated. The hybrid Al7075-Beryl-GNPs composites showed better mechanical properties compared with base Al7075 matrix material. The ascast Al7075-6wt.% Beryl-2wt.%GNPs showed 49.41% improvement in hardness and 77.09% enhancement in ultimate tensile strength over Al7075 alloy.

Study on Mechanical Properties of AA6061/SiC/B4C Hybrid Nano Metal Matrix Composites

2021 ◽  
Vol 1034 ◽  
pp. 35-42
Author(s):  
Shubhajit Das ◽  
M. Chandrasekaran ◽  
Sutanu Samanta
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Matrix Material ◽  
Average Particle Size ◽  
Volume Ratio ◽  
Casting Process ◽  
Hybrid Nanocomposites ◽  
Average Particle ◽  
Matrix Composites ◽  
Structural Applications

The present work investigates the mechanical characterization of aluminium alloy (AA) 6061 based hybrid nanometal matrix composites (MMCs) fabricated using conventional stir casting process. Two compositions viz., AA6061+1.5 wt.% B4C+0.5 wt.% SiC (Hybrid A) and AA6061+1.5 wt.% B4C+1.5 wt.% SiC (Hybrid B) was prepared and its mechanical properties such as microhardness, tensile, compressive, flexural and impact strength were investigated to compare with unreinforced AA6061. SiC and B4C ceramic particles (purity 99.89%) of average particle size of 50 nm were used as reinforcements. Significant enhancement in microhardness of 30.2% and 31.02% for hybrid A and B are observed respectively. The ultimate tensile strength (UTS) increased by 10.72% and 16.55% for hybrid A and B respectively. Improved interaction because of the enhanced surface to volume ratio at the interface resulted in improvement of mechanical properties. Field emission scanning electron microscopy (FESEM) of the fractured surface shows brittle fracture because of the incorporation of the ceramic reinforcements in the matrix material. The developed AA6061/SiC/B­4C hybrid nanocomposites show improved mechanical properties for high-performance structural applications.

scholarly journals Investigation on the effect of stacking sequence on mechanical properties of a basalt and carbon fiber hybrid composite

2021 ◽  
Author(s):  
Naveen R ◽  
◽  
Kumar M ◽  
Mathan A ◽  
Dhushyanath D ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Low Cost ◽  
Basalt Fiber ◽  
High Strength ◽  
Stacking Sequence ◽  
Compression Moulding ◽  
Wide Range

In the recent times, usage of Carbon Fiber Reinforced Plastics (CFRP) is inevitable in almost all the engineering sectors especially in Aerospace industries. In spite of its wide range of applications, the usage is currently limited due to its higher cost while compare to the other forms of composite. To overcome this issue, recent researches have introduced low cost high strength composite materials. The present work attempts to investigate the mechanical properties of hybrid composite made out of Carbon and Basalt fiber. The hybrid composites are fabricated through compression moulding technique with different stacking sequence of ply laminates. The fabricated laminates are then subjected to tensile, flexural, hardness and impact tests as per ASTM standard to characterize the mechanical properties. From the experimental results it is evidenced that the strength of hybrid laminates were strongly dependents on the stacking sequence of fiber reinforcement. The fabricated laminates of carbon fiber as top layer reveal improved mechanical strength than that of basalt fiber as top layer. The microstructural investigations also been done on the fabricated composites and are reported.

Quantifying Alumina Nanoparticle Dispersion in Hybrid Carbon Fiber Composites Using Photoluminescent Spectroscopy

2016 ◽  
Vol 71 (2) ◽  
pp. 258-266 ◽  
Author(s):  
Imad Hanhan ◽  
Alex Selimov ◽  
Declan Carolan ◽  
Ambrose C. Taylor ◽  
Seetha Raghavan
Keyword(s):  
Carbon Fiber ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Particle Dispersion ◽  
Alumina Nanoparticles ◽  
Site Quality ◽  
Carbon Fiber Composites ◽  
Nanoparticle Dispersion ◽  
Hybrid Carbon

Composites modified with nanoparticles are of interest to many researchers due to the large surface-area-to-volume ratio of nano-scale fillers. One challenge with nanoscale materials that has received significant attention is the dispersion of nanoparticles in a matrix material. A random distribution of particles often ensures good material properties, especially as it relates to the thermal and mechanical performance of composites. Typical methods to quantify particle dispersion in a matrix material include optical, scanning electron, and transmission electron microscopy. These utilize images and a variety of analysis methods to describe particle dispersion. This work describes how photoluminescent spectroscopy can serve as an additional technique capable of quickly and comprehensively quantifying particle dispersion of photoluminescent particles in a hybrid composite. High resolution 2D photoluminescent maps were conducted on the front and back surfaces of a hybrid carbon fiber reinforced polymer containing varying contents of alumina nanoparticles. The photoluminescent maps were analyzed for the intensity of the alumina R1 fluorescence peak, and therefore yielded alumina particle dispersion based on changes in intensity from the embedded nanoparticles. A method for quantifying particle sedimentation is also proposed that compares the photoluminescent data of the front and back surfaces of each hybrid composite and assigns a single numerical value to the degree of sedimentation in each specimen. The methods described in this work have the potential to aid in the manufacturing processes of hybrid composites by providing on-site quality control options, capable of quickly and noninvasively providing feedback on nanoparticle dispersion and sedimentation.

scholarly journals Studies on Mechanical Properties of Kevlar/Napier Grass Fibers Reinforced with Polymer Matrix Hybrid Composite

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
R. Ganesamoorthy ◽  
R. Meenakshi Reddy ◽  
T. Raja ◽  
Pradeep Kumar Panda ◽  
Sneha H. Dhoria ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compression Strength ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Natural Fibers ◽  
Negative Influence ◽  
Napier Grass ◽  
Synthetic Fibers ◽  
The Impact

A percentage of natural fibers is used for developing a composite, the materials are quite increasing in recent trends, and they can be a potential replacement of synthetic fibers in the reinforcement phase of hybrid composite. In this research, the combination of natural fibers and synthetic fibers can be used as reinforcement, and epoxy polymer can be used as matrix material. The fibers of Kevlar and Napier grass are reinforced with epoxy matrix to develop a new composite by using conventional hand layup fabrication process and to quantify the effect of this hybrid composite laminate, with five different sequences following. To identify the mechanical properties of this hybrid composite through tensile, flexural, compression strength, impact strength, and hardness tests, among all five samples, sample A was given the maximum mechanical strength, such that the tensile strength is 210 MPa, flexural strength is 165 MPa, the impact energy absorption is 23 J, the average is 40% over the other samples, and, at the same time, the compression strength of sample E is 19 MPa, revealing the negative influence of hybrid composite. The SEM morphology was carried out to identify the failure mode of the hybrid composites.

scholarly journals Characterization of Hemp/Glass Reinforced Epoxy Hybrid Composites with Filler Material for the Engineering Application

2020 ◽  
Vol 8 (6) ◽  
pp. 4570-4575
Keyword(s):  
Mechanical Properties ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Glass Fibers ◽  
Matrix Material ◽  
Engineering Application ◽  
Filler Material ◽  
Hemp Fiber ◽  
The Matrix ◽  
Alternative Material

Cenosphere is a powder form material obtained by burning of coal in thermal plants. This industrial waste is ceramic rich, economically available and as filler material has the potential to improve properties of Composites. This work deals with the effect of cenosphere as filler material on mechanical properties of the Hemp/Glass Reinforced Epoxy Hybrid Composites. Industrial hemp fiber/fabric, which is produced by the bast of the hemp tree, is used along with Glass fibers in this hybrid composite with cenosphere as a filler material and epoxy as the matrix material. Hand layup technique is used to develop composite specimens with various weight fractions. Composite specimen prepared as per relevant ASTM standards were tested for their mechanical properties to establish the influence of cenosphere and glass fabrics in the laminates with Hemp fabrics. It has found that some of the properties of hybrid composite samples are significantly increased by the influence of filler material. This hybrid composite can be used as alternative material to plastics used in automobile mudguard.

scholarly journals Undergraduate Research Program to Recycle Composite Waste

2021 ◽  
Vol 11 (7) ◽  
pp. 354
Author(s):  
Waleed Ahmed ◽  
Essam Zaneldin ◽  
Amged Al Hassan
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Carbon Fiber ◽  
Undergraduate Students ◽  
Research Program ◽  
Modulus Of Elasticity ◽  
Undergraduate Research ◽  
Undergraduate Research Program ◽  
Structural Applications ◽  
Cfrp Composite

With the rapid growth in the manufacturing industry and increased urbanization, higher amounts of composite material waste are being produced, causing severe threats to the environment. These environmental concerns, coupled with the fact that undergraduate students typically have minimal experience in research, have initiated the need at the UAE University to promote research among undergraduate students, leading to the development of a summer undergraduate research program. In this study, a recycling methodology is presented to test lab-fabricated Carbon-Fiber-Reinforced Polymer (CFRP) for potential applications in industrial composite waste. The work was conducted by two groups of undergraduate students at the UAE University. The methodology involved the chemical dissolution of the composite waste, followed by compression molding and adequate heat treatment for rapid curing of CFRP. Subsequently, the CFRP samples were divided into three groups based on their geometrical distinctions. The mechanical properties (i.e., modulus of elasticity and compressive strength) were determined through material testing, and the results were then compared with steel for prompt reference. The results revealed that the values of mechanical properties range from 2 to 4.3 GPa for the modulus of elasticity and from 203.7 to 301.5 MPa for the compressive strength. These values are considered competitive and optimal, and as such, carbon fiber waste can be used as an alternate material for various structural applications. The inconsistencies in the values are due to discrepancies in the procedure as a result of the lack of specialized equipment for handling CFRP waste material. The study concluded that the properties of CFRP composite prepreg scrap tend to be reusable instead of disposable. Despite the meager experimental discrepancies, test values and mechanical properties indicate that CFRP composite can be successfully used as a material for nonstructural applications.

scholarly journals Physical and Mechanical Properties of Polypropylene-Wood-Carbon Fiber Hybrid Composites

BioResources ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Djamila Kada ◽  
Sébastien Migneault ◽  
Ghezalla Tabak ◽  
Ahmed Koubaa
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Hybrid Composites ◽  
Physical And Mechanical Properties

FRP-Nanoclay Hybrid Composites: A Review

2017 ◽  
Vol 904 ◽  
pp. 146-150 ◽  
Author(s):  
Manjunath Shettar ◽  
U. Achutha Kini ◽  
Sathya Shankar Sharma ◽  
Pavan Hiremath
Keyword(s):  
Mechanical Properties ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Basic Structure ◽  
Structure Property ◽  
Key Factors ◽  
Characterization Techniques

The review is on aimed an insight source for FRP-Nanoclay hybrid composite (nanocomposite) research, which includes basic structure/property, preparation & characterization techniques, mechanical properties and applications of hybrid composites. Key factors are discussed, which are influencing the mechanical properties of nanocomposite with nanoclay addition. Conclusions are also drawn based on the research of nanocomposites and improvement in mechanical properties.

Behavior of epoxy reinforced banana glass fiber hybrid composite with nanoclay interference

2021 ◽  
pp. 095440622110357
Author(s):  
Sudhagar M ◽  
Kannan TK ◽  
Benjamin Lazarus S ◽  
Rajasekar R ◽  
Sachin S Raj
Keyword(s):  
Glass Fiber ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Wear Behavior ◽  
Hybrid Nanocomposites ◽  
Compression Moulding ◽  
Banana Fiber ◽  
Optimum Result ◽  
Character Study ◽  
Novel Material

Recent years, Polymer matrix hybrid composites have a greater attention in industry and research due to growing demand for versatile applications. The present work focused on the development of epoxy based hybrid nanocomposites. Nanoclay is another novel material that is widely used in the research. In this investigation, nanoclay dispersed hybrid composite materials has been studied for mechanical and wear behavior. Glass fiber and banana fiber combined epoxy laminates (EGB) were reinforced with nanoclay at different weight fractions of 2%, 4%, 6%, and 8% using compression moulding. The enhanced properties of the nanoclay hybrid composites were analyzed with other specimens. Water absorption character study was also conducted. Morphological study was performed using Scanning Electron Microscope. It was observed that an optimum result attained with 4 wt% nanoclay reinforced composite with an increase in tensile strength of 8.62%, flexural strength of 30.19%, and impact strength of 48.15% when compared to EGB. Further the wear resistance of 4 wt% nanoclay hybrid composite showed an increase of 19.4% than the EGB composite.

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