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Sensitivity Analysis of Reinforced Aluminum Based Metal Matrix Composites
Fouzia Gillani1, Muhammad Zubair Khan1, Owaisur Rahman Shah1
1Department of Mechanical Engineering, Institute of Space Technology, Islamabad 44000, Pakistan.
This study investigated aluminum-based metal matrix composites (AMCs) with SiC and ZrSiO4. Optimal sintering temperature and composition enhance hardness, while porosity increases with higher temperatures.
Area of Science:
- Materials Science
- Metallurgical Engineering
Background:
- Metal matrix composites (MMCs) are vital for engineering due to their light weight, high strength, and wear resistance.
- Aluminum-based metal matrix composites (AMCs) are advanced materials with significant engineering potential.
Purpose of the Study:
- To investigate the impact of composition, sintering time, and temperature on the hardness and surface roughness of AMCs.
- To explore the development of new-generation AMCs containing SiC and ZrSiO4 for diverse applications.
Main Methods:
- Powder metallurgy (PM) was used to prepare samples under 1000 psi pressure.
- Samples were sintered at temperatures from 500°C to 1100°C with varying times.
- Field Emission Scanning Electron Microscopy (FESEM) and Energy Dispersive Spectroscopy (EDS) were employed for morphological and elemental analysis.
Main Results:
- Hardness increased with rising sintering temperature, particularly for SiC-reinforced AMCs.
- Surface roughness showed minimal changes with composition variations.
- Porosity was observed due to the higher melting point of reinforcements compared to the aluminum matrix.
Conclusions:
- Sintering temperature significantly influences the hardness of AMCs.
- Optimized processing parameters are crucial for tailoring AMC properties like hardness and surface roughness.
- Mathematical models were developed for validating experimental data on AMC characteristics.
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