Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application
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Universiti Malaysia Perlis (UniMAP)
2021
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my.unimap-697592021-02-18T04:41:17Z Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application Saifulrizan, Mokhtar Nur Liyana, Mohd Rosli Metal matrix composites (MMC) Hydroxyapatite (HA) Biodegradable implant Access is limited to UniMAP community. In 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. 2021-02-18T04:41:17Z 2021-02-18T04:41:17Z 2016-06 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/69759 en Universiti Malaysia Perlis (UniMAP) |
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Universiti Malaysia Perlis |
| content_source |
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http://dspace.unimap.edu.my/ |
| language |
English |
| topic |
Metal matrix composites (MMC) Hydroxyapatite (HA) Biodegradable implant |
| spellingShingle |
Metal matrix composites (MMC) Hydroxyapatite (HA) Biodegradable implant Saifulrizan, Mokhtar Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application |
| description |
Access is limited to UniMAP community. |
| author2 |
Nur Liyana, Mohd Rosli |
| author_facet |
Nur Liyana, Mohd Rosli Saifulrizan, Mokhtar |
| format |
Learning Object |
| author |
Saifulrizan, Mokhtar |
| author_sort |
Saifulrizan, Mokhtar |
| title |
Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application |
| title_short |
Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application |
| title_full |
Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application |
| title_fullStr |
Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application |
| title_full_unstemmed |
Fabrication of Magnesium-Hydroxyapatite composites targeted for biodegradable implant application |
| title_sort |
fabrication of magnesium-hydroxyapatite composites targeted for biodegradable implant application |
| publisher |
Universiti Malaysia Perlis (UniMAP) |
| publishDate |
2021 |
| url |
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/69759 |
| _version_ |
1698698276421763072 |