scholarly journals Microstructure, microhardness, and tensile properties of hot-rolled Al6061/TiB2/CeO2 hybrid composites

2021 ◽  
Vol 121 (10) ◽  
pp. 1-6
Author(s):  
S. Iyengar ◽  
D. Sethuram ◽  
R. Shobha ◽  
P.G. Koppad
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Hybrid Composites ◽  
Base Alloy ◽  
Interfacial Bonding ◽  
Uniform Dispersion ◽  
Al6061 Alloy ◽  
Ceo2 Particle ◽  
Hot Rolled ◽  
Scanning Electron

T1B2 and CeO2 particle-reinforced A16061 hybrid composites were manufactured using stir casting and hot rolling techniques. The base alloy and composites were hot-rolled at 500°C and a 50% reduction was achieved through 12 passes. The effect of varying TB2 and CeO2 particle additions on the microstructure and mechanical properties of the Al6061 matrix was studied. Scanning electron microscopy showed uniform dispersion of both the reinforcements, with good interfacial bonding. Microhardness and tensile properties like yield and tensile strength were found to be higher for hybrid composite with 2.5% TiB2 and 2.5% CeO2 compared to Al6061 alloy and other hybrid composites. The increased tensile strength is attributed to good dispersion and interfacial bonding between the particles and Al6061 matrix. Fracture analysis using a scanning electron microscope revealed ductile fracture for the Al6061 alloy and mixed characteristics of ductile-brittle fracture for hybrid composites.

Tensile Properties of Polypropylene/Cocoa Pod Husk Biocomposites: Effect of Maleated Polypropylene

2013 ◽  
Vol 747 ◽  
pp. 645-648 ◽  
Author(s):  
Koay Seong Chun ◽  
Salmah Husseinsyah ◽  
Hakimah Osman
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
Melt Blending ◽  
Elongation At Break ◽  
Maleated Polypropylene ◽  
Matrix Interaction ◽  
Cocoa Pod Husk ◽  
Blending Process ◽  
Scanning Electron

Polypropylene/Cocoa Pod Husk (PP/CPH) biocomposites with different maleated polypropylene (MAPP) content were prepared via melt blending process using Brabender Plastrograph mixer. The tensile strength and tensile modulus of PP/CPH biocomposites increased with increasing of MAPP content. The PP/CPH biocomposites with 5 phr of MAPP showed the optimum improvement on tensile properties. However, the increased of MAPP content reduced the elongation at break of PP/CPH biocomposites. At 5 phr of MAPP content, PP/CPH biocomposites showed lowest elongation at break. Scanning electron microscope confirms the PP/CPH biocomposites with MAPP have better filler-matrix interaction and adhesion due to the effect of MAPP.

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.

Tensile Fractography of Artificially Aged Al6061-SiC+B4C Hybrid Composites

2020 ◽  
Vol 995 ◽  
pp. 3-8
Author(s):  
Sathyashankara Sharma ◽  
M.C. Gowrishankar ◽  
Pavan Hiremath ◽  
Manjunath Shettar ◽  
B.M. Gurumurthy
Keyword(s):  
Tensile Strength ◽  
Hybrid Composites ◽  
Base Alloy ◽  
Substantial Improvement ◽  
Matrix Composites ◽  
Interface Failure ◽  
Ductile Mode ◽  
Mode Of Failure ◽  
Hybrid Metal Matrix Composite ◽  
And Behavior

In the current work Al6061 hybrid composites reinforced with Silicon Carbide (SiC) and Boron Carbide (B4C) were studied for improvement in hardness and behavior of fracture surface after artificial aging. It was found that after aging at 100 and 200 OC, presence of SiC and B4C particles in the Hybrid Al6061 Matrix Composites showed substantial improvement in hardness compared to that of the base alloy. Behavior of fracture mechanism after tensile strength have been discussed to conclude the factors which impact the mechanism of crack growth. Presence of SiC and B4C reinforcement particulates and artificially aged at 100°C for Al6061-SiC+ B4C hybrid metal matrix composite shows enhancement in hardness by 180% and tensile strength by 80% due to the presence of finer secondary solute rich intermetallic phases of alloying elements. Fractography analysis displays particle interface failure and combination of brittle and ductile mode of failure.

Tensile Properties of Hybrid Sugar Palm/Kenaf Fibre Reinforced Polypropylene Composites

2014 ◽  
Vol 695 ◽  
pp. 155-158 ◽  
Author(s):  
Dandi Bachtiar ◽  
Januar Parlaungan Siregar ◽  
Ahmad Syahrizan bin Sulaiman ◽  
Mohd Ruzaimi bin Mat Rejab
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Hybrid Composites ◽  
Weight Percent ◽  
Thermoplastic Composites ◽  
Molding Process ◽  
Polypropylene Composites ◽  
Kenaf Fibre ◽  
Natural Composites ◽  
Kenaf Fibres

Study on hybridization of two types of natural fibres reinforced thermoplastic composites was an alternative option in research on natural composites. This paper presents the investigation on tensile properties of combining sugar palm and kenaf fibres reinforced polypropylene composites. The hybrid composites were prepared with different amounts of fibres (i.e. 10%, 20% and 30% by weight percent) while the ratios between sugar palm and kenaf fibre are 30:70, 50:50 and 70:30. The composites have been fabricated using melt mixer technique and followed by compression molding process. The specimens were cut according ASTM Standard D638 for conducting the tensile testing. The results shown that tensile strength of composites tend to decreased when the content of loading fibres increased. Among the composites with different ratios, the hybrid composites that contain more kenaf fibres exhibit the higher value in tensile strength than the composites that contain more sugar palm fibres.

Effect of Nanocellulose Loading on Tensile Properties of Nitrile Rubber

2017 ◽  
Vol 264 ◽  
pp. 112-115
Author(s):  
Erfan Suryani Abdul Rashid ◽  
Wageeh Abdulhadi Yehye ◽  
Nurhidayatullaili Muhd Julkapli ◽  
Sharifah Bee O.A. Abdul Hamid
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Tensile Test ◽  
Tensile Properties ◽  
Mechanical Performance ◽  
Butadiene Rubber ◽  
Fracture Surfaces ◽  
Scanning Electron

Nanocellulose (NCC) is incorporated into nitrile butadiene rubber (NBR) latex with the composition 0 to 5 phr using dipping method. Mechanical properties of NBR/NCC composites using tensile test was used to characterize their mechanical performance and the fracture surfaces post tensile test were studied. The tensile strength of NBR/NCC composites increase significantly with the addition of nanocellulose. This could be anticipated due to the presence of Van der Waals interaction between hydrophilic natures of nanocellulose with hydrophobic of NBR consequently limits the tearing propagation. The result was supported with the fracture surfaces morphology viewed under Fourier Emission Scanning Electron Microscopy (FESEM).

CMW 73

Alloy Digest ◽  
2000 ◽  
Vol 49 (11) ◽  
Keyword(s):  
Thermal Conductivity ◽  
Tensile Strength ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Base Alloy ◽  
Heat Treating ◽  
High Tensile Strength ◽  
Copper Base ◽  
Copper Base Alloy

Abstract CMW 73 is a heat treatable copper-base alloy having high tensile strength and hardness coupled with fair electrical and thermal conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: CU-129. Producer or source: CMW Inc. Originally published as Mallory 73, June 1963, revised November 2000.

The superior ductility of fine SiCp/Al2014 composites after extrusion

2017 ◽  
Vol 24 (2) ◽  
pp. 245-251 ◽  
Author(s):  
Long-Jiang Zhang ◽  
Feng Qiu ◽  
Jin-Guo Wang ◽  
Qi-Chuan Jiang
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Tensile Properties ◽  
Bonding Strength ◽  
Fracture Strain ◽  
Stir Casting ◽  
Interfacial Bonding ◽  
Sic Particles ◽  
Interfacial Bonding Strength

AbstractThis paper studied the effect of extrusion on the microstructures and tensile properties of 4 vol.% 5 μm SiCp/Al2014 composites fabricated by stir casting. It has been found that extrusion could refine the α-Al grains, increase the distributed homogeneity of SiC particles, decrease the porosity of the composites, and improve the interfacial bonding strength. The tensile properties, especially the ductility, of the fine SiCp/Al2014 composites were significantly improved by extrusion. Compared with the as-cast 4 vol.% 5 μm SiCp/Al2014 composites, the yield strength, ultimate tensile strength, and fracture strain of the extruded composites increased from 242 MPa, 367 MPa, and 3.8% to 304 MPa, 530 MPa, and 11.2%, which were increased by 25.6%, 44.4%, and 195%, respectively.

Injection Molding of PP/CaCO3 Hybrid Composites Toughened with SEBS-g-MA Elastomer: Morphological and Tensile Properties

2013 ◽  
Vol 550 ◽  
pp. 57-62
Author(s):  
Mounir El Achaby ◽  
El Mokhtar Essassi ◽  
Abou El Kacem Qaiss
Keyword(s):  
Tensile Strength ◽  
Calcium Carbonate ◽  
Maleic Anhydride ◽  
Injection Molding ◽  
Tensile Properties ◽  
Interfacial Adhesion ◽  
Hybrid Composites ◽  
Particle Dispersion ◽  
Elongation At Break ◽  
Butadiene Styrene

The aim of this work is to prepare, by extrusion, blends of polypropylene (PP)/styrene-ethylene-butadiene-styrene-g-maleic anhydride (SEBS-g-MA) at the ratios of 100/0, 95/5, 90/10, 85/15 80/20. Then, a amount of 10 wt% of calcium carbonate (CaCO3) was added to each polymer blend to prepare (PP/SEBS-g-MA)/CaCO3 composites with effective ratios of (100/0)/10 (95/5)/10, (90/10)/10, (85/15)/15 and (80/20)/10. Morphological and tensile properties of PP/SEBS-g-MA, PP/CaCO3 and (PP/SEBS-g-MA)/ CaCO3 were evaluated and compared. It was found that the presence of SEBS-g-MA improves the particle dispersion and interfacial adhesion. The tensile properties of PP polymer were affected by addition of SEBS-g-MA and/or CaCO3. Indeed, the addition of only SEBS-g-MA the youngs modulus and tensile strength of PP were remarkably decreased and the elongation at break was significantly increased. In contrast, the PP/ CaCO3 composites shows improved youngs modulus and tensile strength and reduced elongation at break in regard to neat PP. A balance between these selected properties was found in (PP/SEBS-g-MA)/CaCO3 composites, while the youngs, tensile strength and elongation at break were together increased. .

scholarly journals Morphology, Structural, Thermal, and Tensile Properties of Bamboo Microcrystalline Cellulose/Poly(Lactic Acid)/Poly(Butylene Succinate) Composites

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 465
Author(s):  
Masrat Rasheed ◽  
Mohammad Jawaid ◽  
Bisma Parveez ◽  
Aamir Hussain Bhat ◽  
Salman Alamery
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Lactic Acid ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Poly Lactic Acid ◽  
Melt Mixing ◽  
Butylene Succinate ◽  
Uniform Dispersion ◽  
Scanning Electron

The present study aims to develop a biodegradable polymer blend that is environmentally friendly and has comparable tensile and thermal properties with synthetic plastics. In this work, microcrystalline cellulose (MCC) extracted from bamboo-chips-reinforced poly (lactic acid) (PLA) and poly (butylene succinate) (PBS) blend composites were fabricated by melt-mixing at 180 °C and then hot pressing at 180 °C. PBS and MCC (0.5, 1, 1.5 wt%) were added to improve the brittle nature of PLA. Field emission scanning electron microscopy (FESEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscope (FTIR), thermogravimetric analysis (TGA), differential thermogravimetry (DTG), differential scanning calorimetry (DSC)), and universal testing machine were used to analyze morphology, crystallinity, physiochemical, thermal, and tensile properties, respectively. The thermal stability of the PLA-PBS blends enhanced on addition of MCC up to 1wt % due to their uniform dispersion in the polymer matrix. Tensile properties declined on addition of PBS and increased with MCC above (0.5 wt%) however except elongation at break increased on addition of PBS then decreased insignificantly on addition of MCC. Thus, PBS and MCC addition in PLA matrix decreases the brittleness, making it a potential contender that could be considered to replace plastics that are used for food packaging.

scholarly journals Effects of Nanoclay on Tensile and Flexural Properties of Pineapple Leaf Fibre Reinforced Phenolic Composite

2019 ◽  
Vol 8 (2S4) ◽  
pp. 473-476 ◽  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flexural Strength ◽  
Tensile Properties ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Tensile Modulus ◽  
Flexural Properties ◽  
Hot Press ◽  
Phenolic Composite

Phenolic based PALF/nanoclay hybrid composites was prepared by adding Montmorillonite (MMT) as filler at different loading (1%, 2% and 3%) by using hot press technique. Obtained results indicated that adding MMT in PALF/phenolic composites considerably improves the tensile and flexural strength and modulus. Tensile properties showed that the tensile strength increased after adding MMT though tensile modulus decreased. Flexural strength and modulus were enhanced after adding MMT up to 2%, further addition of MMT declined the properties. 2% MMT showed better tensile and flexural properties. 3% MMT/PALF hybrid composite showed no further improvement in tensile properties after 2% MMT, however the flexural properties were reduced. 3% MMT did not improved much maybe agglomeration accrued. PALF/nanoclay/phenolic hybrid composites revealed good mechanical properties that encourage to use for structural purposes.

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