Yaqin, Wildan Ainul and Dr. Femiana Gapsari, ST., MT and Francisca Gayuh Utami Dewi, ST., MT (2022) Pengaruh Pelapisan High Velocity Oxy-fuel Pada Bioceramic TiO2-HA Terhadap Laju Korosi Implan Biomaterial Paduan Co-Cr. Sarjana thesis, Universitas Brawijaya.
Abstract
Biomaterial telah umum digunakan dalam aplikasi medis, salah satunya sebagai implan untuk memperbaiki fraktur. Pada penelitian ini, permukaan logam implan paduan Co-Cr dilapisi biokeramik HA dan TiO2 menggunakan metode HVOF thermal spray dengan variasi pada komposisi lapisan yang digunakan. Paduan Co-Cr umumnya dikenal karena ketahanan aus dan korosinya yang baik. Namun, paduan Co-Cr memiliki kelemahan yaitu kurangnya biokompabilitas dan bioaktivitas sehingga perlu dilakukan modifikasi pada permukaannya. Hydroxyapatite dan Titanium Oxide digunakan sebagai pelapis permukaan implan karena mempunyai sifat biokompatibilitas dan bioaktivitas yang baik. Metode pengujian yang dilakukan yaitu pengujian laju korosi yang disimulasikan dalam media HBSS, pengujian kekasaran permukaan pelapisan, dan pengujian SEM untuk mengetahui morfologi permukaan dan porositas dari pelapisan paduan Co-Cr .Hasil penelitian menunjukkan bahwa penggunaan unsur HA dan TiO2 terbukti mampu meningkatkan ketahanan korosi karena mampu mencegah ion elektrolit atau elektron masuk ke dalam permukaan logam paduan Co-Cr.
English Abstract
Biomaterials have been commonly used in medical applications, one of which is as implants to repair fractures. In this study, the metal surface of Co-Cr alloy implants was coated with HA and TiO2 bioceramic using the HVOF thermal spray method with variations in the layer composition used. Co-Cr alloys are generally recognized for their good wear and corrosion resistance. However, the Co-Cr alloy has a weakness, namely the lack of biocompatibility and bioactivity, so it is necessary to modify the surface. Hydroxyapatite and Titanium Oxide are used as implant surface coatings because they have good biocompatibility and bioactivity properties. The test methods used were corrosion rate testing simulated in HBSS media, coating surface roughness testing, and SEM testing to determine the surface morphology and porosity of the Co-Cr alloy coating. The results showed that the use of HA and TiO2 elements was proven to increase corrosion resistance because able to prevent electrolyte ions or electrons from entering the surface of the Co-Cr alloy metal.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0522070263 |
| Uncontrolled Keywords: | Biomaterial, Paduan Co-Cr, Hydroxyapatite, Titanium Oxide, HVOF, Kekasaran Permukaan, Laju Korosi, Biomaterial, Co-Cr Alloys, Hydroxyapatite, Titanium Oxide, HVOF, Surface Roughness, Corrosion Rate. |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.8 Machine engineering |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Zainul Mustofa |
| Date Deposited: | 19 Oct 2022 02:30 |
| Last Modified: | 19 Oct 2022 02:30 |
| URI: | http://repository.ub.ac.id/id/eprint/195813 |
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