Microstructure and mechanical properties of porous aluminium composites reinforced with diamond particles

• Main Authors: Parveez, Bisma, Jamal, Nur Ayuni, Mohamad Kadri, Syazwan, Ahmad Azhar, Ahmad Zahirani, Mohd Zaki, Hafizah Hanim
• Format: Proceeding Paper
• Language: English; English
• Published: Springer 2023
• Subjects: T Technology (General); TA401 Materials of engineering and construction
• Online Access: http://irep.iium.edu.my/111075/2/111075_Microstructure%20and%20mechanical%20properties%20of%20porous%20aluminium%20composites%20reinforced%20with%20diamond%20particles.pdf; http://irep.iium.edu.my/111075/3/111075_Microstructure%20and%20mechanical%20properties%20of%20porous%20aluminium%20composites%20reinforced%20with%20diamond%20particles_Scopus.pdf; http://irep.iium.edu.my/111075/; https://doi.org/10.1007/978-981-19-9509-5_6
• Institution: Universiti Islam Antarabangsa Malaysia

n the present work, diamond particles with various contents (5, 10 and 15 wt. %) were reinforced in porous aluminum (Al) composite via powder metallurgy technique. The desirable porous structure was designed by incorporating polymethylmethacrylate (PMMA) as a space holder material at fixed content of 30 wt. % in all the composites. Morphology of the resultant porous Al composite demonstrated the formation of uniform closed-cell macropores and diamond particles that are well bonded within the Al matrix. However, higher weight percentage (wt.%) of diamond content resulted in appearances of agglomeration and improper pore. X-ray diffraction (XRD) analysis confirmed strengthening intermetallic phases at the interfaces, thus improving the bonding strength and wetting action. The composites with 5wt.% and 10wt.% diamond content exhibited better compressive properties.