MECHANICAL AND WEAR BEHAVIOR OF MICROWAVE SINTERED AL/RHA COMPOSITE MATERIALS – AN EXPERIMENTAL APPROACH

Registration ID: IJNRD_211721

Published ID: IJNRD2312385

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K.Dorathi, Naga Venkata Srinivas Borra

Aluminium, Mechanical behaviour, Microwave assisted sintering, Powder metallurgy

Aluminium composites have extensive application in the fabrication of diverse components for automobiles, marine vessels, aircraft, and even nuclear power plants. The primary constituent of rice husk ash is silica, accompanied by lesser quantities of potassium, calcium, and magnesium. The silica concentration of rice husk ash (RHA) typically ranges from 80% to 95%. The ash derived from rice husk possesses several advantageous characteristics, such as a notable abundance of silica, a significant level of porosity, and a relatively low thermal conductivity. Various amounts of aluminium are employed to enhance the strength of rice husk ash, with the prevailing proportions being 3%, 6%, and 9%. The samples were subjected to microwave sintering at a temperature of 550 °C with a tolerance of ±5 °C. Mechanical testing was conducted on specimens including pure metal as well as aluminium composites. The results indicated a positive correlation between the concentration of RHA and both density and porosity. The hardness, ultimate tensile strength (UTS), and yield strength (YS) of the reinforced composites (3%, 6%, and 9%) exhibited a notable improvement in comparison to pure aluminium. However, the elongation of the composites saw a quick decrease. The Ultimate Tensile Strength (UTS) and Yield Strength (YS) both exhibit enhancement when the size of the reinforcing particles decreases. The primary processes that have been identified are dislocation density, grain refining, and porosity. The utilisation of RHA reinforcement in composites leads to a reduction in wear rate and an enhancement in wear resistance.

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K.Dorathi & Naga Venkata Srinivas Borra (December-2023). MECHANICAL AND WEAR BEHAVIOR OF MICROWAVE SINTERED AL/RHA COMPOSITE MATERIALS – AN EXPERIMENTAL APPROACH. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 8(12), d756-d766. https://ijnrd.org/papers/IJNRD2312385.pdf

Volume 8 Issue 12, December-2023

Pages : d756-d766

Paper Reg. ID: IJNRD_211721

Published Paper Id: IJNRD2312385

Research Area: Mechanical Engineering 

Author Type: Indian Author

Country: TADEPALLIGUDEM, ANDHRA PRADESH, India

Published Paper PDF: https://ijnrd.org/papers/IJNRD2312385.pdf

Published Paper URL: https://ijnrd.org/viewpaperforall?paper=IJNRD2312385

Journal Name: INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT(IJNRD)

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