Fabrication of Nano-Particle Reinforced Metal Matrix Composites

2013 ◽  
Vol 651 ◽  
pp. 289-294 ◽  
Author(s):  
Alokesh Pramanik ◽  
Guy Littlefair
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Mechanical Alloying ◽  
Uniform Distribution ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Hybrid Methods ◽  
Weight Percent ◽  
Matrix Composites ◽  
Nano Particle

Nanoparticle reinforced metal matrix possess much better mechanical properties over microparticle reinforced metal matrix composites as well as corresponding monolithic matrix materials. However, the fabrication methods of nanoparticle reinforced metal matrix composites are complex and expensive. This paper investigates and discusses the mechanisms of all the fabrication process, such as powder metallurgy, liquid metallurgy, compocasting and hybrid methods, available in the literature. This gives an insight on challenges associated with different processes and ways to improve the fabrication processes. It is found that modified traditional fabrication processes are mainly applied for these materials. The main problem is to achieve reasonably uniform distribution of nanoparticle reinforcement in the methods other than mechanical alloying when the volume or weight percent of reinforcement is higher (> 1%).

Features of the Processing of AA2124 Aluminum Alloy Metal Matrix Composites Reinforced by Silicon Nitride Prepared by Powder Metallurgy Techniques

2014 ◽  
Vol 802 ◽  
pp. 108-113 ◽  
Author(s):  
Carlos Augusto Bezerra ◽  
Alexandre Douglas Araújo de Moura ◽  
Edval Gonçalves de Araújo ◽  
Maurílio José dos Santos ◽  
Oscar Olimpio de Araújo Filho
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Silicon Nitride ◽  
Powder Metallurgy ◽  
Aluminum Alloys ◽  
Mechanical Alloying ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
New Materials

Powder Metallurgy (PM) Techniques consists in a suitable technique to process composites materials. A specific PM technique of mechanical alloying developed to produce new materials in the solid state is a well known route to obtain aluminum alloys metal matrix composites. Aluminum alloys metal matrix composites allies the good properties of aluminum and its alloys but with poor mechanical properties and the reinforcement of ceramics phases which add better mechanical properties to these alloys. The research of this materials processing by PM techniques presented new materials with improved properties. In this work an AA2124 aluminum alloy was reforced by particulated silicon nitride a kind of ceramic phase. The powders were mixed and then processed by mechanical alloying in a SPEX vibratory type mill. Then the powders obtained were compacted and vacuum sintered. The sintered composites were characterized by means of Scanning Electron Microscopy (SEM) plus Energy Dispersive Spectroscopy (EDS) and Vickers hardness tests to evaluate the mechanical behavior.

Effect of Reinforcements on Mechanical Properties of Nickel Alloy Hybrid Metal Matrix Composites Processed by Sand Mold Technique

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Kumaraswamy Jayappa ◽  
Vijaya Kumar ◽  
Gange Gowda Purushotham
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Hybrid Composites ◽  
Research Work ◽  
Weight Percent ◽  
Matrix Composites ◽  
Hybrid Metal Matrix Composites ◽  
Ni Alloy

Hybrid Metal Matrix Composites (HMMCs) have gained wide applications in aerospace, marine, and domestic areas because of its significant properties relative to external forces and enabling environment. In present research work, Ni-alloy selected as a matrix and Al2O3 of 40–80 μm and TiO2 of 1–5 μm were selected as reinforcements. The composites were prepared by keeping 9 wt. % of TiO2 as unvarying and Al2O3 is varied from 3 weight % to 12 weight % in steps of 3 weight %. Induction furnace is used for the casting of composites and mixing is done by using mechanical stirring at 160 rpm for a time period of 5 min. The prepared composites are then tested for their tensile and hardness as per the ASTM standards. The Scanning Electron Microscopy was used for microstructural study. From experimentation, it was observed that increment in the weight percentage of Al2O3 with constant TiO2 increases the mechanical properties of hybrid composites and proper stirring improves homogeneity in the composite material. The test results show that the addition of Al2O3 up to 9 weight percent increases in tensile strength compared to Ni alloy and tensile strength slowly decreases with the addition of Al2O3 and that the hardness values are directly proportional to the weight percent of the addition of Al2O3 / TiO2.

scholarly journals Comparison of Microstructure and Mechanical Properties of A356/SiC Metal Matrix Composites Produced by Two Different Melting Routes

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Shashi Prakash Dwivedi ◽  
Satpal Sharma ◽  
Raghvendra Kumar Mishra
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Weight Percent ◽  
Stir Casting ◽  
Matrix Composites ◽  
Factors Influencing ◽  
Xrd Study ◽  
Sic Particles ◽  
Electromagnetic Stir Casting

A356/SiC metal matrix composites with different weight percent of SiC particles were fabricated by two different techniques such as mechanical stir casting and electromagnetic stir casting. The results of macrostructure, microstructure, and XRD study revealed uniform distribution, grain refinement, and low porosity in electromagnetic stir casing samples. The mechanical results showed that the addition of SiC particles led to the improvement in tensile strength, hardness, toughness, and fatigue life. It indicates that type of fabrication process and percentage of reinforcement are the effective factors influencing the mechanical properties. It is observed that when percentage of reinforcement increases in electromagnetic stir casting, best mechanical properties are obtained.

Manufacturing and Characterization of AA1100 Aluminum Alloy Metal Matrix Composites Reinforced by Silicon Carbide and Alumina Processed by Powder Metallurgy

2016 ◽  
Vol 869 ◽  
pp. 447-451 ◽  
Author(s):  
Oscar Olimpio Araújo Filho ◽  
Alexandre Douglas Araújo de Moura ◽  
Everthon Rodrigues de Araújo ◽  
Maurílio José dos Santos ◽  
Cezar Henrique Gonzalez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Aluminum Alloy ◽  
Powder Metallurgy ◽  
Aluminum Alloys ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
New Materials ◽  
Aa1100 Aluminum Alloy

Powder Metallurgy (PM) Techniques consists in a suitable technique to process composites materials. A specific PM technique of mechanical alloying developed to produce new materials in the solid state is a consolidated route to obtain aluminum alloys metal matrix composites. Aluminum alloys metal matrix composites allies the good properties of aluminum and its alloys but with poor mechanical properties and the reinforcement of ceramics phases which add better mechanical properties to these alloys. The research of this materials processing by PM techniques presented new materials with improved properties. In this work an AA1100 aluminum alloy was reinforced by particulate silicon carbide and alumina types of ceramic phases. The powders were mixed and then processed by mechanical alloying in a SPEX vibratory type mill. Then the powders obtained were compacted and vacuum sintered. The sintered composites were characterized by means of Scanning Electron Microscopy (SEM) plus Energy Dispersive Spectroscopy (EDS) and Vickers hardness (HV) tests to evaluate the mechanical behavior.

scholarly journals Enhancing the Mechanical Properties of Metal Matrix Composites by Reinforcing Aluminum 6063 with Silicon Carbide and Mica

2019 ◽  
Vol 8 (6S4) ◽  
pp. 119-123
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Weight Percent ◽  
Matrix Composites ◽  
High Quality ◽  
Base Steel ◽  
Set Up

Metal matrix composites (MMC) Are metals covered with diverse metals, stoneware or commonplace fragments. This essentially performed to beautify the homes of base metallic like high-quality, electricity, conductivity, and so on., Aluminum and its amalgams have pulled in most concept as a base steel in metallic lattice composites. Al MMC are typically applied in carrier, flying and severa area. This paper attempts to look the improvement of mechanical residences with the useful resource of the aggregate of Aluminum 6063 (Al6063) fortified with Silicon Carbide (SiC) and Mica composites made through combo tossing technique. The precedents are set up with aluminum changing with Silicon carbide via the use of weight percent of (12%, 13% and 14%) and mica (2%). Tests had been guided on these composites to evaluate how the flexibility, microhardness, flexural high-quality, compressive fine and microstructures of the materials were affected.

Mechanical properties of Al-based metal matrix composites reinforced with Zr-based glassy particles produced by powder metallurgy

2009 ◽  
Vol 57 (6) ◽  
pp. 2029-2039 ◽  
Author(s):  
S. Scudino ◽  
G. Liu ◽  
K.G. Prashanth ◽  
B. Bartusch ◽  
K.B. Surreddi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites
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