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Fabrication and characterization of Mg-Zn alloys reinforced with carbon nanofiber for orthopaedics implant application: A study on the different compositions

Edrus, Muhammad Al Kahfi and Mohd. Azman, Muhammad Sallehuddin and Tuminoh, Herman and Nasution, Ahmad Kafrawi and Ramlee, Muhammad Hanif (2021) Fabrication and characterization of Mg-Zn alloys reinforced with carbon nanofiber for orthopaedics implant application: A study on the different compositions. Malaysian Journal of Medicine and Health Sciences, 16 (4). pp. 252-258. ISSN 1675-8544

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Official URL: https://medic.upm.edu.my/jurnal_kami/penerbitan/mj...

Abstract

Introduction: Biodegradable materials, such as Mg-based, Fe-based, and Zn-based, bring as much attention as bone-implant materials due to its biocompatibility and biodegradability characteristics. Among them, the Mg is the most abundant elements in human body and primarily found in the bones. However, the Mg has a lower mechanical properties and resistances to fracture compared to the other biodegradable and non-biodegradable metals. Therefore, the aim of this study was to develop a possible biodegradable material made of Mg-Zn alloys reinforced with carbon nano fiber (CNF) and later tested with several testing procedures. Methods: The powder metallurgy method (PM) was utilized to fabricate a total of 24 samples of Mg-Zn alloys reinforced with 1.0%wt, 1.2%wt, 1.4%wt, 1.6%wt, 1.8%wt and 2.0%wt of CNF. The PM method was involved with the process of grinding using ball milling, compaction under 400MPa pressure and sintered under 400 °C. Compression testing was done to measure the mechanical strength meanwhile scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) was used to identify the microstructural of samples. Results: From this study, it was found that Mg-Zn alloys with 1.6 wt% of CNF produce the highest Young's modulus (2687.91MPa) with acceptable yield strength (84.91MPa). For microstructural analysis, the results showed a compact surface for 1.2, 1.4 and 1.6 wt% of CNF and non-homogeneous structure of all the samples. Conclusion: In conclusion, this study has successfully shown the promising use of Mg-Zn-CNF composite as new materials for implant in terms of suitable strength and structure.

Item Type:Article
Uncontrolled Keywords:Biodegradable materials, Carbon nanofiber, Magnesium composite, Powder metallurgy, Reinforcement particle
Subjects:Q Science > QD Chemistry
Divisions:Biosciences and Medical Engineering
ID Code:97845
Deposited By: Widya Wahid
Deposited On:07 Nov 2022 09:51
Last Modified:07 Nov 2022 09:51

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