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dc.contributor.authorSaifulrizan, Mokhtar
dc.date.accessioned2021-02-18T04:41:17Z
dc.date.available2021-02-18T04:41:17Z
dc.date.issued2016-06
dc.identifier.urihttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/69759
dc.descriptionAccess is limited to UniMAP community.en_US
dc.description.abstractIn the present study, as a lightweight metal with mechanical properties similar to natural bone, magnesium is gaining wide popularity as biodegradable materials targeted for temporary implant applications. The objective of the present work is to fabricate magnesium based metal matrix composites (MMC) for degradable implant applications and hydroxyapatite (HA) powder was selected as the secondary phase. The samples magnesium-hydroxyapatite was prepared by using powder metallurgy technique and conventional sintering. Conventional sintering of the milled powders resulted in the formation of structure of magnesium with the presence of hydroxyapatite. Temperature was selected as the third phase for magnesium-hydroxyapatite (Mg-HA) composites of 600°C, 620°C, and 640°C were fabricated using powder metallurgy and conventional sintering. Density and porosity of the composites investigated by densimeter machine with increase the temperature and the best density is found for the Mg-HA (640°C) composite which is 1.4519 g/cm³. This composite also exhibits maximum Vickers hardness. Young's modulus and fracture toughness measured by indentation method were higher for the Mg-HA (640°C) composite which is 159.08 MPa.m½. Besides, this composite also exhibits maximum compressive strength and the best compressive strength is found for the Mg-HA (640°C) with a value 99.6054MPa. The results thus suggest that structured Mg-HA composites with 640°C sintering temperature show Mg-HA (640°C) promise for temporary degradable orthopedic implant applications because of their improved physical and mechanical properties.en_US
dc.language.isoenen_US
dc.publisherUniversiti Malaysia Perlis (UniMAP)en_US
dc.subjectMetal matrix composites (MMC)en_US
dc.subjectHydroxyapatite (HA)en_US
dc.subjectBiodegradable implanten_US
dc.titleFabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant applicationen_US
dc.typeLearning Objecten_US
dc.contributor.advisorNur Liyana, Mohd Rosli


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