Development and Characterization of Aluminium Reinforced with MWCNT and Fly-Ash Using Powder Metallurgy Technique

Development and Characterization of Aluminium Reinforced with MWCNT and Fly-Ash Using Powder Metallurgy Technique

LAKSHMIKANTHA M R1, AKSHAY S2,

AMBARISHA V A3, ROHITH KUMAR T G4

Mr. Manjunath Naik H R5

1234UG students,Department of Mechanical Engineering, SJB Institute of Technology, Bangalore-560060,Karnataka, India.

5Assistant Professor, Departmentof Mechanical Engineering, SJB Institute of Technology, Bangalore-560060, Karnataka, India.

ABSTRACT

The main AIM of this study is to develop MWCNT and Fly ash reinforced aluminium composites by using Powder metallurgy process. Aluminium reinforced with MWCNT And Fly- ash via powder metallurgy (PM) technique can provide a very distinct advantage. The prepared composites are characterized by the mechanical properties, structural properties on MWCNT and Fly ash.

In recent years, the utilization of Composites has increased in various areas of science and technology, due to their special physical, mechanical, and wear properties. Of all the Composites, aluminium-based composites particularly are finding a lot of scope, due to their excellent high strength to weight ratio, high stiffness, higher thermal conductivity as well as corrosion, and wear resistance properties. Therefore, aluminium based, composites have the potential to replace the conventional materials in the field of automobile, aerospace, construction, house-hold appliances, and food packaging industries. In the past decades, various materials have been used as reinforcements to fabricate aluminium composites.

Composites have gained importance and considered as future engineering materials. These composite materials are used in various fields such as automotive, aerospace, civil and other structural fields. Composite materials possess higher specific strength, lower density, better physical and mechanical properties compared to the base materials. Aluminium Composites have gained increasing commercial applications over the years. The property of composite materials mainly depends on the percentage weight of reinforced material in the base material and the process of developing such composite materials.

The objective of the study is to develop the appropriate materials having low density with high strength and modulus. Composites has been emerged as a promising material for structural and engineering applications for aerospace, automobile, engines and biomaterial devices. The (MWCNT) are gaining more importance due to their enhanced thermal and electrical conductivity. MWCNT as a reinforcing particulate for the purpose to enhance the characteristics including low density, high strength, and hardness together with excellent thermal and electrical conductivity of the aluminium Composites.

Fly ash is also known as alumina-silicate particles, has been incorporated in to metal matrix composites for the last few decades mainly to reduced their weight, manufacturing cost and enhancing selected properties. Fly ash for reinforcement was found one of the most important criteria for fabricating aluminium matrix composites. Fly ash is one of the most promising inexpensive and low density reinforcement available in large quantities among other reinforcement. Even though, it is a solid waste by-product obtained from thermal power plants the advantages of fly ash such as low density, strong filling ability, excellent fluidity and good processibility of the filled materials.