Pengaruh Pelapisan Flame Thermal Spray Coating HA – TiO2 Terhadap Laju Korosi Implan Biomaterial Paduan CoCr.

Ramadhan, Muhammad Faiz and Dr. Femiana Gapsari, ST.,MT. and Hubby Izzudin, Ph.D. (2022) Pengaruh Pelapisan Flame Thermal Spray Coating HA – TiO2 Terhadap Laju Korosi Implan Biomaterial Paduan CoCr. Sarjana thesis, Universitas Brawijaya.

Abstract

Ketahanan korosi CoCr dapat ditingkatkan dengan proses penyemprotan implan coating pada substrat CoCr menggunakan bahan pelapis titanium dioksida (TiO2) hidroksiapatit (HA) yang sangat biokompatibel. Pada penelitian ini digunakan spray metallization MK74C sebagai alat untuk melapisi TiO2 - HA pada substrat CoCr. Dalam penelitian ini, TiO2 dan HA dilapisi pada lapisan yang terdegradasi oleh perubahan lapisan TiO2-1HA dan TiO2-1HA. Selain itu, Jeol JIB4610F FE SEM-EDS digunakan untuk melakukan proses karakterisasi dan pengujian untuk mengkonfirmasi ketebalan lapisan, nilai porositas, dan distribusi elemen dari hasil pelapisan. Surface Roughness Tester SJ210 Mitutoyo digunakan untuk menentukan nilai kekasaran lapisan. Laju korosi diuji menggunakan Alat Potensiodinamik AUTOLAB PGSTAT 204 dengan media korosi HBSS. Parameter pelapisan yang digunakan sama, tetapi diperoleh nilai ketebalan, kekasaran, dan porositas lapisan yang berbeda. Hal ini karena komposisi lapisan yang berbeda menghasilkan sifat pelapis yang berbeda. Penambahan lapisan TiO2 dan HA ke komposisi pelapis secara signifikan lebih reaktif dan lebih pasif daripada CoCr yang tidak dilapisi, menghasilkan peningkatan yang jelas dalam ketahanan korosi.

English Abstract

The high level of demand for implants and the growing demand for safe, high-quality metallic biomaterials in Indonesia pose challenges for the medical world. Although the use of CoCr as a biomaterial implant is appropriate, in practice CoCr still has several weaknesses that need to be modified to overcome these shortcomings. It is expected that the corrosion resistance of CoCr can be improved by spraying the coating implant on the CoCr substrate using a highly biocompatible titanium dioxide (TiO2) hydroxyapatite (HA) coating material. In this study, spray metallization MK74C was used as a tool to coat TiO2 - HA on CoCr substrate. In this study, TiO2 and HA were coated on a layer that was degraded by changing layers of TiO2-1HA and TiO2-1HA. Besides that, Jeol JIB4610F FE SEM-EDS was used to carry out the characterization and testing process to confirm the coating thickness, porosity value, and element distribution of the coating results. Surface Roughness Tester SJ210 Mitutoyo is used to determine the value of layer roughness. Corrosion rate was tested using AUTOLAB PGSTAT 204 Potentiodynamic Tool with HBSS corrosion medium. The coating parameters used were the same, but different values of thickness, roughness, and porosity were obtained. This is because different coating compositions produce different coating properties. The addition of TiO2 and HA coatings to the coating composition was significantly more reactive and more passive than uncoated CoCr, resulting in a clear increase in corrosion resistance.

Other obstract

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Item Type:	Thesis (Sarjana)
Identification Number:	0522070171
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:	12 Aug 2022 07:55
Last Modified:	11 Dec 2023 06:47
URI:	http://repository.ub.ac.id/id/eprint/193198

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