Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg)
Also available in printed version
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| 其他作者: | |
| 格式: | Bachelor thesis |
| 語言: | 英语 |
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Universiti Teknologi Malaysia
2025
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| 主題: | |
| 在線閱讀: | https://utmik.utm.my/handle/123456789/56547 |
| Abstract | Abstract here |
| _version_ | 1854975068049768448 |
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| author | Choa, Pei Shuang |
| author2 | Esah Hamzah, supervisor |
| author_facet | Esah Hamzah, supervisor Choa, Pei Shuang |
| author_sort | Choa, Pei Shuang |
| description | Also available in printed version |
| format | Bachelor thesis |
| id | utm-123456789-56547 |
| institution | Universiti Teknologi Malaysia |
| language | English |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-565472025-08-20T23:56:11Z Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg) Choa, Pei Shuang Esah Hamzah, supervisor Mechanical engineering Also available in printed version Magnesium and its alloys are used widely in biomedical implant applications such as in neuronal implants and prostheses for central nervous system (CNS) and orthopaedic prostheses. Magnesium and its alloys has low density and high biocompatibility. Due to its high degradation rate, Mg alloys are coated to improve its properties. The aim of this project is to investigate the corrosion resistance poly(e-caprolactone)/hydroxyapatite (PCL/xHA) coating on magnesium by dip coating. The concentration of hydroxyapatite (HA) was set as the various concentration parameters (x = 0, 5, 10 and 15wt%) in order to investigate and determine the optimum concentration of poly(e-caprolactone)/hydroxyapatite (PCL/xHA) coating on magnesium. All samples were characterized by using scanning electron microscope (SEM), Energy � Dispersive X-ray Spectrometer (EDS), Fourier Transform Infrared Spectroscopy (FTIR) and X-Ray diffractometer (XRD). Three types of corrosion tests were carried out in order to determine the corrosion behavior of the specimens, namely immersion test and Potentiodynamic Polarization Test and pH evaluation. All the tests were performed in simulated body fluid (SBF) solution to initiate the body environment. Immersion test was carried out for 7 days. From the analysis, it shows that specimen coated with 100% PCL on Mg substrate has the highest corrosion resistance compared to other specimens. Presence of corrosion product Mg(OH)2 on specimens were confirmed by EDS and element mapping analysis. Aggressive chloride ion in SBF solution reacted with the dissolution of Mg and formed a more soluble MgCl2. shafika UTM 90 p. Project Paper (Sarjana Kejuruteraan (Mekanikal)) - Universiti Teknologi Malaysia, 2019 2025-03-17T04:27:42Z 2025-03-17T04:27:42Z 2019 Bachelor thesis https://utmik.utm.my/handle/123456789/56547 vital:130922 valet-20200108-140932 ENG Closed Access UTM Complete Completion Unpublished application/pdf Universiti Teknologi Malaysia |
| spellingShingle | Mechanical engineering Choa, Pei Shuang Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg) |
| thesis_level | Other |
| title | Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg) |
| title_full | Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg) |
| title_fullStr | Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg) |
| title_full_unstemmed | Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg) |
| title_short | Microstructure and corrosion behaviour of poly (?-caprolactone) / hydroxyapatite (pcl-xha) coating on magnesium (Mg) |
| title_sort | microstructure and corrosion behaviour of poly caprolactone hydroxyapatite pcl xha coating on magnesium mg |
| topic | Mechanical engineering |
| url | https://utmik.utm.my/handle/123456789/56547 |
| work_keys_str_mv | AT choapeishuang microstructureandcorrosionbehaviourofpolycaprolactonehydroxyapatitepclxhacoatingonmagnesiummg |