Fabrication and characterizations of recycled aluminium-copper-cullet powder (AL-CU-CP) metal composite
Aluminium-Copper-Cullet powder (Al-Cu-CP) metal composite was fabricated from recycled materials, using recycled Aluminium (Al) obtained from scrap door and window frames, copper (Cu) wire scrap and cullet powder (CP). The research focused on fabricating the composite with improved properties...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2020
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/1001/1/24p%20AWWAL%20HUSSAIN%20NUHU.pdf http://eprints.uthm.edu.my/1001/2/AWWAL%20HUSSAIN%20NUHU%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1001/3/AWWAL%20HUSSAIN%20NUHU%20WATERMARK.pdf |
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| Summary: | Aluminium-Copper-Cullet powder (Al-Cu-CP) metal composite was fabricated from
recycled materials, using recycled Aluminium (Al) obtained from scrap door and
window frames, copper (Cu) wire scrap and cullet powder (CP). The research focused
on fabricating the composite with improved properties which are incomparable with
the constituent elements and other composites of similar components by using these
inexpensive raw materials. This research is an attempt in removing solid wastes from
the environment, promoting technological sustainability and also to support the zero�emission campaign for promoting green technology. The Al-Cu-CP metal composite
was fabricated via stir casting method due to its simplicity and economic importance.
The composite was produced with variable percentage compositions, melt holding
times and casting temperatures. The composite and the unreinforced Al were analysed
for physical, mechanical and morphological properties, phase analysis as well as for
their chemical composition. The analyses indicated that the chemical composition of
the products covered all the initial components. The optimum parameters were
established as 20 wt. % of reinforcement materials (Cu and CP), 60 minutes of melt
holding time and at 800 °C of casting temperature. The results of hardness tests were
found to have improved significantly from 41.625 HV of the unreinforced Al to
124.704 HV for Al-Cu-CP metal composite. XRD results revealed formation of some
intermetallics within the composite which strengthens the composite further. The Al�Cu-CP metal composite has shown appreciable level of wear resistance and corrosion
resistance in artificial seawater (3.5 g/L NaCl) at room temperature. Heat treatment
further improved these properties of the Al-Cu-CP metal composite in all aspects. Due
to these enhanced properties of Al-Cu-CP composite, it could be used where high
strength with less density product is required such as automobile brake shoes and brake
disc as a result of the upgraded physical and mechanical properties. |
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