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Your search keyword '"Shantharaja, M."' showing total 2 results
Start Over Author "Shantharaja, M." Topic mechanical wear
2 results on '"Shantharaja, M."'

1. Tribological Characterization of Epoxy Hybrid Composites Reinforced with Al2O3 Nanofiller.

Author

Dilip Kumar, K., Shantharaja, M., Kiran, M. D., Rajesh, M., Kumar, Nithin, and Lenin, Haiter

Subjects
*HYBRID materials, *EPOXY resins, *GLASS fibers, *MECHANICAL wear, *WEAR resistance, *FIBERS, *FIBROUS composites, *POLYMERIC composites, *POLYMERIC nanocomposites
Abstract

The addition of fillers to polymer composites induces a positive influence on the mechanical and tribological properties of the hybrid composites. These properties can be validated for possible uses such as automobile, construction, shipping, aerospace, sports equipment, electronics, and biomedical domains. In the present research, epoxy matrix reinforced with nylon-6 fibers and glass fibers were prepared using the solution blend technique. Alumina nanoparticles are added as fillers to enhance the properties of epoxy hybrid composites. The large surface area of interaction of nanofillers exhibits better adhesion between matrix and fibers of composites, and it significantly affects the various properties of composites. The tribological characteristics of fabricated epoxy hybrid composites were evaluated under various parameters and conditions. The results revealed that the addition of nanofiller significantly reduces the wear loss of epoxy hybrid nanocomposites. The wear resistance of epoxy hybrid composites increased with increase in addition of nanofiller up to 1.0%, and it slightly decreased with the further addition of filler. The Taguchi analysis was carried out for the least coefficient of friction and specific wear rate. The analysis found that the specific wear rate and coefficient of friction mainly depend on load, followed by speed and nanofiller. The fractured and worn surface of Al2O3-filled epoxy hybrid composites was analysed using SEM. [ABSTRACT FROM AUTHOR]

Published
2023
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2. The Effect of Reinforcements on Mechanical Properties of A7005 Hybrid MMCs.

Author

Kumar, S. Praveen, Shantharaja, M., and Vinyas, M.

Subjects
*MECHANICAL wear, *FRACTOGRAPHY, *SURFACE morphology, *MICROSTRUCTURE
Abstract

In the current study, Al7005 matrix alloy and S-glass + Fly-ash hybrid MMCswith different weight fractions (Al7005 +1% S-Glass+2% Fly-ash (A1), Al7005 +1% S-Glass+4% Fly-ash (A2), Al7005 +1% S-Glass+6% Fly-ash (A3) ) were fabricated thru stir casting, later extruded and studied for their microstructure, mechanical and wear properties of these hybrid MMCs were evaluated and compared with as-cast alloy before and after extrusion. The microstructure of the hybrid MMCs shows a relatively uniform distribution of S-glass and Fly-ash in the Al matrix. The mechanical and tribological properties of composites improved with increasing the weight percentage of S-glass and Fly-ash. Fractographic surface morphology was studied using SEM. Al7005 +1% S-Glass+6% Fly-ash (A3) hybrid extruded MMCs displayed superior results i.e. mechanical and wear properties compared to A1 and A2 hybrid MMCs. The current work highlights the significant features of the casting technique and characterization of S-glass and Fly-ash reinforced hybrid Al7005 MMCs. [ABSTRACT FROM AUTHOR]

Published
2020
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