The crystallinity and hardness properties of Al-Cu/SiCp new composite materials
The main aim of this paper is to investigate the crystallinity and hardness properties of Al-Cu/SiCp matrix composite (AMC) materials. The materials were prepared using a noble stir casting technique by varying the percentage of Cu in the Al-Cu matrix. Qualitative X-ray analysis has been carried...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2012
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/25704/ http://irep.iium.edu.my/25704/ http://irep.iium.edu.my/25704/ http://irep.iium.edu.my/25704/1/P57_2012.pdf |
| Summary: | The main aim of this paper is to investigate the crystallinity and hardness properties of
Al-Cu/SiCp matrix composite (AMC) materials. The materials were prepared using a noble stir
casting technique by varying the percentage of Cu in the Al-Cu matrix. Qualitative X-ray analysis
has been carried out to characterize the crystallinity of the Al-Cu/SiCp as-cast composite materials.
Sample was cut and shaped into 25 mm×15 mm×4 mm in dimension then polished with diamond
paste. X-ray diffraction diagrams were recorded using a transmission technique with a SHIMADZU
Lab X (XRD-6000) X-ray generator operating at Cu Kα1 radiation. Hardness test was conducted
using Vickers hardness tester (Mitutuyo, MVK-H2). The results indicated that a significant crystal
growth was occurred in the composite materials due to increase of Cu from 2 to 4 % whereas a
slight improvement of crystallinity was observed when the Cu percentage was increased from 4 to 6
% in the matrix. It was also revealed from the result that a similar trend was grasped in hardness
increment with the crystallinity of Al-Cu/SiCp AMCs. |
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