scholarly journals Manufacturing and Performance of Carbon Short Fiber Reinforced Composite Using Various Aluminum Matrix

2021 ◽  
Vol 5 (12) ◽  
pp. 307
Author(s):  
Yongbum Choi ◽  
Xuan Meng ◽  
Zhefeng Xu
Keyword(s):  
Tensile Strength ◽  
Carbon Fiber ◽  
Ultimate Tensile Strength ◽  
Matrix Composite ◽  
Aluminum Matrix ◽  
Short Fiber ◽  
Aluminum Matrix Composite ◽  
Aluminum Matrix Composites ◽  
Al Alloy ◽  
Matrix Composites

A new fabrication process without preform manufacturing has been developed for carbon short fiber (CSF) reinforced various aluminum matrix composites. And their mechanical and thermal properties were evaluated. Electroless Ni plating was conducted on the CSF for improving wettability between the carbon fiber (CF) and aluminum. It was confirmed that pores in Ni plated CSF/Al and Al alloy matrix composites prepared by applied pressure, 0.8 MPa, had some imperfect infiltration regions between the CF/CF and CF/matrix in all composites. However, pores size in the region between the CF/CF and CF/matrix to use the A336 matrix was about 1 µm. This size is smaller than that of other aluminum-based composites. Vickers hardness of Ni plated CSF/A1070, A356 alloy, and A336 alloy composites were higher as compared to matrix. However, the A1070 pure aluminum matrix composite had the highest hardness improvement. The Ultimate tensile strength of the A1070 and A356 aluminum matrix composite was increased due to carbon fiber compared to only aluminum, but the Ultimate tensile strength of the A336 aluminum matrix composite was rather lowered due to the highest content of Si precipitate and large size of Al3Ni compounds. The Thermal Conductivity of Ni plated CSF/A1070 composite has the highest value (167.1 W·m−1·K−1) as compared to composites.

scholarly journals ADDITION OF MAGNESIUM (Mg) WITH ALUMINA (AL2O3) REINFORCER IN ALUMINUM MATERIAL COMPOSITES ON THE MECHANICAL PROPERTIES AND MICRO STRUCTURES

2021 ◽  
Vol 2 (2) ◽  
pp. 7-13
Author(s):  
Basuki Widodo ◽  
Agung Panji Sasmito
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Matrix Composite ◽  
Volume Fraction ◽  
Aluminum Matrix ◽  
Casting Process ◽  
Magnesium Content ◽  
Aluminum Matrix Composite ◽  
Aluminum Matrix Composites ◽  
Low Density

Aluminum is a widely used and applied material in daily life or in the industrial and automotive world. In order to improve the performance and properties of the application to be used, it needed an alloying element to improve the mechanical properties of the aluminum. Aluminum Matrix Composite (AMC) or better known as aluminum matrix composite is one type of material that has great potential to be developed, due to its good combination and properties such as high strength and hardness, low density, low density, capable of good machining, and its basic ingredients are easily found on the market and cheaper than other materials. This research was conducted using the stir casting process to be able to mix all the compositions contained in aluminum matrix composites and to help the distribution of alumina reinforcing particles (Al2O3) and aluminum matrices be evenly distributed. The parameters used in this casting process are varying the volume fraction of the Al2O3 amplifier by 0.5%; 1.5% and 2.5% plus the magnesium content remains 0.9%. The results showed that the addition of Al2O3 can increase the value of hardness and reduce the value of tensile strength. The highest hardness value was 75.3 HRB at the addition of Al2O3 by 2.5% and the lowest tensile strength value was 7.17 Kgf / mm2 with the percentage of Al2O3 addition of 0.5%.

scholarly journals Forming Process and Simulation Analysis of Helical Carbon Fiber Reinforced Aluminum Matrix Composite

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2024
Author(s):  
Jun Liang ◽  
Chunjing Wu ◽  
Zihang Zhao ◽  
Weizhong Tang
Keyword(s):  
Plastic Deformation ◽  
Carbon Fiber ◽  
Large Deformation ◽  
Matrix Composite ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite ◽  
Space Structure ◽  
Aluminum Matrix Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

In order to promote the industrialization of the large deformation technology of carbon fiber composites, this paper studies a new method of forming of helical carbon fiber reinforced aluminum matrix composite. The purpose is to solve the problem of large deformation of carbon fiber with low elongation and metal matrix with high elongation. By introducing carbon fiber with helical space structure into the aluminum matrix, the helical carbon fiber reinforced aluminum matrix composites were prepared and the subsequent drawing deformation was carried out. Here we systematically studied the large plastic deformation behavior of helical carbon fiber reinforced aluminum matrix composite via a combination of numerical simulations and experiments, and analyzed the deformation law and stress of helical carbon fiber in the deformation process. We found that the plastic deformation of the composite causes local stress concentration around the helical carbon fiber, and the helical carbon fiber will move synchronously with the aluminum matrix during the deformation, and receive the pressure from the aluminum matrix. Second, the best process parameters obtained from the simulation, that is, the drawing die angle α = 7°, when five-pass drawing experiments were carried out, the total deformation reached 58%, and the average elongation of a single pass was 18.9%. The experimental show carbon fiber reinforced aluminum matrix composite with helical space structure can achieve large deformation and high strength. The experimental and simulation are in general agreement, which verifies the correctness of the carbon fiber helical structure model.

Effect of Liquid-Phase-Impact Diffusion Welding Parameters on the Strength of Welded Joints of Aluminum Matrix Composite SiCp/ZL101

2005 ◽  
Vol 297-300 ◽  
pp. 2790-2794
Author(s):  
Ji Tai Niu ◽  
Wei Guo ◽  
Jin Fan Zhai ◽  
Mu Zhen Wang
Keyword(s):  
Liquid Phase ◽  
Matrix Composite ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite ◽  
Diffusion Welding ◽  
Welding Parameters ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
National Patent ◽  
Matrix Reinforcement

In this paper, a new method for welding aluminum matrix composites is mainly described. It is liquid-phase-impact (LPI) diffusion welding, which has gained China National Patent. The results show that by liquid-phase-impact diffusion welding, when the certain amount of liquid phase alloy appears, with effect of certain impact speed, the interface of matrix-reinforcement and reinforcement-reinforcement are joined perfectly. Because the welding time is very short, the harmful phase is avoided in welded area and bad effect on the interface between the aluminum matrix and reinforcement hasn’t caused, and the work efficiency has improved enormously. With the technique, particle reinforcement aluminum matrix composite SiCp/ZL101 has welded successfully, and joint strength is about 75% of the strength of composite (as-casted), deformation less than 3%.

Study on Mechanical Properties of AA6351 Alloy Reinforced with Titanium Di-Boride (TiB2) Composite by In Situ Casting Method

2015 ◽  
Vol 787 ◽  
pp. 583-587 ◽  
Author(s):  
V. Mohanavel ◽  
K. Rajan ◽  
K.R. Senthil Kumar
Keyword(s):  
Tensile Strength ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Scanning Electron Micrographs ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
In Situ Reaction ◽  
Halide Salts ◽  
Scanning Electron

In the present study, an aluminum alloy AA6351 was reinforced with different percentages (1, 3 and 5 wt %) of TiB2 particles and they were successfully fabricated by in situ reaction of halide salts, potassium hexafluoro-titanate and potassium tetrafluoro-borate, with aluminium melt. Tensile strength, yield strength and hardness of the composite were investigated. In situ reaction between the inorganic salts K2TiF6 and KBF4 to molten aluminum leads to the formation of TiB2 particles. The prepared aluminum matrix composites were characterized using X-ray diffraction and scanning electron microscope. Scanning electron micrographs revealed a uniform dispersal of TiB2 particles in the aluminum matrix. The results obtained indicate that the hardness and tensile strength were increased with an increase in weight percentages of TiB2 contents.

Preparation and Characterization of Carbon Fibre Reinforced Aluminium Matrix Composite

2011 ◽  
Vol 686 ◽  
pp. 758-764 ◽  
Author(s):  
Xiao Ming Sui ◽  
Xi Liang Xu ◽  
Xiao Meng Zheng ◽  
Guang Zhi Xu ◽  
Qiang Wang
Keyword(s):  
Carbon Fiber ◽  
Aluminum Matrix ◽  
Strengthening Mechanism ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Alloy Matrix ◽  
Aluminium Matrix Composite ◽  
Carbon Fiber Reinforced ◽  
Long Carbon Fiber

Driven by the increasing requirements from aircraft producers, aluminium alloy matrix composites with carbon fiber reinforcement have been largely used in the modern industry. The method of traditional preparation of carbon fiber reinforced aluminum matrix composites is not only high cost and complex to produce but also difficult to apply in the civilian. The present paper focuses on exploratory study on the preparation of carbon-fiber- reinforced aluminum composites, the intensifying material is continuous long carbon fiber. In order to avoid any interfacial reactions in the carbon fiber reinforced composites, the carbon fibers were coated with copper. We made The tensile samples were made by using the mould, the tensile properties determined, the strengthening mechanism studied, and the carbon fiber in the matrix observed with the microscope.

INVESTIGATION ON MECHANICAL PROPERTIES AND MICROSTRUCTURE OF BORON NITRIDE NANOPARTICLE REINFORCED ALUMINUM-BASED COMPOSITES

2021 ◽  
Vol 16 (3) ◽  
pp. 112-123
Author(s):  
Mahmut Can Şenel ◽  
Mevlüt Gürbüz
Keyword(s):  
Compressive Strength ◽  
Boron Nitride ◽  
Mechanical Strength ◽  
Matrix Composite ◽  
Vickers Hardness ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite ◽  
Matrix Composites ◽  
Al Matrix Composites ◽  
Al Matrix

In the current work, nano boron nitride (BN) reinforced aluminum (Al) matrix composites with different BN amounts (0.5-2wt.%) were produced by the powder metallurgy(PM) route. This fabrication method consists of dispersing, filtering, mixing, drying, compaction, and sintering processes. The density, compressive strength, micro Vickers hardness, microstructure, and phase structures of Al-BN composites and pure Al were examined. The obtained results indicated that minimum porosity (3.2%), highest density (~2.61g/cm3), Vickers hardness (~50HV), and compressive strength (~168MPa) were obtained at 1%BN reinforced aluminum matrix composite. A tremendous enhancement in Vickers hardness and compressive strength of %1BN reinforced Al matrix composite was achieved as ~61% and ~110% compared to pure Al. Consequently, the mechanical strength of BN reinforced Al-based composites enhanced up to 1% nano boron nitride amount. Due to the clumping of BN nanoparticles, the mechanical strength decreased after this content.

Aluminum-Matrix Aluminum Nitride Particle Composite as a Low-Thermal-Expansion Thermal Conductor

1993 ◽  
Vol 323 ◽  
Author(s):  
Shy-Wen Lai ◽  
D. D. L. Chung
Keyword(s):  
Thermal Conductivity ◽  
Tensile Strength ◽  
Thermal Expansion ◽  
Volume Fraction ◽  
Liquid Aluminum ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Low Thermal Expansion ◽  
Increasing Temperature

AbstractAluminum-matrix composites containing AIN or SiC particles were fabricated by vacuum infiltration of liquid aluminum into a porous particulate preform under an argon pressure of up to 41 MPa. Al/AIN was superior to Al/SiC in thermal conductivity. At 59 vol.% AIN, Al/AlN had a thermal conductivity of 157 W/m. °C and a thermal expansion coefficient of 9.8 × 10−-6°C−1 (35–100 °C). Al/AlN had similar tensile strength and higher ductility compared to Al/SiC of a similar reinforcement volume fraction at room temperature, but exhibited higher tensile strength and higher ductility at 300–400°C. The ductility of Al/AlN increased with increasing temperature from 22 to 400°C, while that of Al/SiC did not change with temperature. The superior high temperature resistance of Al/AlN is attributed to the lack of a reaction between Al and AIN, in contrast to the reaction between Al and SiC in AI/SiC.

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