Maulana, Ferdian Rizky and Dr. Femiana Gapsari, ST., MT., Dr. Femiana Gapsari, ST., MT. and Hubby Izzudin, ST., M.Si., Ph.D., Hubby Izzudin, ST., M.Si., Ph.D. (2022) Pengaruh Pelapisan Flame Thermal Spray Coating HA - ZnO Terhadap Laju Korosi Implan Biomaterial Paduan Co-Cr. Sarjana thesis, Universitas Brawijaya.
Abstract
Patah tulang biasanya terjadi karena benturan seperti jatuh, cedera olahraga, atau kecelakan kendaraan bermotor. Patah tulang juga diakibatkan oleh faktor usia atau degeneratif. Penanganan cedera tulang diperlukan metode internal fixation dengan melakukan operasi bedah untuk memasangkan implan. Implan umumnya menggunakan biomaterial seperti paduan CoCr. Yang memiliki sifat tahan korosi dan biokompabilitas yang baik, namun paduan CoCr mudah beracun. Proses pelapisan menggunakan metode flame spray coating pada paduan CoCr dengan bahan pelapis Hydroxyapatite (HA) – Zinc Oxide (ZnO) diharapkan dapat meningkatkan biokompabilitas dan ketahanan korosi. Pada penelitian ini digunakan Flame Spray Metalisation MK-74C sebagai alat untuk melapisi substrat CoCr dengan bahan pelapis campuran HA-ZnO. Terdapat variasi komposisi campuran, yaitu 95% HA – 5% ZnO, 90% HA – 10% ZnO, dan 80% HA – 20% ZnO. Setelah dilakukan pelapisan, dilanjutkan dengan proses karakterisasi dan pengujian dengan alat Jeol JIB-4610F FE-SEM-EDS untuk melihat ketebalan, porositas dan persebaran unsur. Nilai kekasaran permukaan didapatkan dengan alat Mitutoyo Surface Roughness Tester SJ-210. Pengujian laju korosi menggunakan alat Potensiodinamik AUTOLAB PGSTAT 204 dengan media larutan HBSS. Penambahan ZnO pada HA mampu meningkatkan ketahanan terhadap laju korosi dibandingkan substrat CoCr tanpa pelapisan. Hal ini disebabkan karena ZnO berfungsi sebagai inhibitor anodik, menahan ion atau elektron yang masuk kedalam substrat paduan CoCr dan mampu memiliki sifat anti bakteri sedangkan HA memiliki kesamaan kimia dan biologis dengan tulang manusia.
English Abstract
Fractures usually occur due to an impact such as a fall, sports injury, or motor vehicle accident. Fractures are also caused by age or degenerative factors. Treatment of bone injuries requires methodsinternal fixation by performing a surgical operation to attach the implant. Implants generally use biomaterials such as CoCr alloys. Which has good corrosion resistance and biocompatibility properties, but the CoCr alloy is easily toxic. The coating process using the flame spray coating method on CoCr alloy with Hydroxyapatite (HA) – Zinc Oxide (ZnO) coating material is expected to increase biocompatibility and corrosion resistance.In this study, Flame Spray Metalization MK-74C was used as a tool to coat CoCr substrate with a mixed HA-ZnO coating material. There are variations in the composition of the mixture, namely 95% HA – 5% ZnO, 90% HA – 10% ZnO, and 80% HA – 20% ZnO. After the coating was done, it was continued with the characterization process with the Jeol tool and the JIB-4610F FE-SEM-EDS test to see the thickness, porosity and distribution of elements. The surface roughness value was obtained using the Mitutoyo Surface Roughness Tester SJ-210. Corrosion rate testing using AUTOLAB PGSTAT 204 Potentiodynamic tool with HBSS solution media. The addition of ZnO to HA was able to increase the resistance to corrosion rate compared to CoCr substrate without coating. This is because ZnO functions as an anodic inhibitor.
Other obstract
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Item Type: | Thesis (Sarjana) |
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Identification Number: | 0522070153 |
Uncontrolled Keywords: | Kata Kunci: Paduan Co-Cr, Hydroxyapatite, Zinc Oxide, Flame Spray Coating, Laju Korosi |
Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.8 Machine engineering |
Divisions: | Fakultas Teknik > Teknik Mesin |
Depositing User: | yulia Chasanah |
Date Deposited: | 08 Aug 2022 02:13 |
Last Modified: | 08 Aug 2022 02:15 |
URI: | http://repository.ub.ac.id/id/eprint/193005 |
Text (DALAM MASA EMBARGO)
Ferdian Rizky Maulana.PDF Restricted to Registered users only until 31 December 2024. Download (3MB) |
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