Azzahra, Nadira Ghina (2021) Analisis Komposisi Massa Hydroxyapatite Dan Tricalcium Phospate Pada Proses Plasma Electrolytic Oxidation Terhadap Morfologi Dan Laju Degredasi Paduan Mg AZ31B Untuk Aplikasi Biodegredable Implant. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Paduan magnesium yang diaplikasikan untuk tulang manusia adalah Mg AZ31B. Paduan ini merupakan yang banyak digunakan untuk aplikasi biomedis karena kandungan aluminium yang lebih sedikit namun sifat mekanik dan korosinya baik dan sangat memungkinkan untuk produksi implant di dalam tulang manusia. Metode yang digunakan adalah proses Plasma Electrolytic Oxidation (PEO). Tujuan penelitian ini adalah menganalisis komposisi hydroxyapatite dan tricalcium phosphate pada proses PEO terhadap morfologi dan laju degredasi paduan Mg AZ31B yang digunakan dengan larutan elektrolit Na2SiO3(2,5 g/l)+ KOH(2 g/l). Variasi perbandingan presentase (%) komposisi massa hydroxyapatite dan tricalcium phosphate yang dilarutkan sebesar 70:30, 50:50, 40:60, dan 60:40. Penelitian ini menggunakan analisis XRD dan SEM-EDX, dengan pengujian laju korosi yang menggunakan weight loss dan polarisasi. Dari Analisa XRD terdapat 2 senyawa yaitu MgO dan Mg2SiO4. Hasil yang optimal untuk pengujian polarisasi terdapat pada variasi HA 70:30 sebesar 0,22 mpy. Kemudian laju korosi pada pengujian weight loss sebesar 0,29 mpy dengan ukuran pori sebesar 0,036 μm.
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The magnesium alloy applied to human bones is Mg AZ31B. This alloy is widely used for biomedical applications due to its less aluminum content but its mechanical and corrosion properties are good and it is possible for implant application inside human bones. The method used is plasma electrolytic oxidation (PEO) process. The purpose of this study was to analyze the composition of hydroxyapatite and tricalcium phosphate in PEO process on morphology and degredation rate of Mg AZ31B alloy used with electrolyte solution Na2SiO3 (2,5g/l) + KOH(2g/l). Percentage comparison variation (%) composition mass of dissolved hydroxyapatite and tricalcium phosphate is 70:30, 50:50, 40:60, and 60:40. For testing the rate of degradation using the weight loss and polarization test. Characterization of the resulting coating used XRD and SEM-EDX. From XRD analysis, it was found that the content of MgO and Mg2SiO4. Then the results of the analysis using the weight loss and polarization methods. The results of the polarization test and weight loss test, the optimum time was obtained at variation 70:30 of 0,22 mpy and 0,29 mpy with an average pore size of 0,036 μm.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Mg AZ31B; Plasma Electrolytic Oxidation; Hydroxyapatite; tricalcium phosphate; laju degradasi ==============================================================Plasma Electrolytic Oxidation; Hydroxyapatite; tricalcium phosphate; degredation rate |
| Subjects: | Q Science > QD Chemistry > QD63.O9 Electrolytic oxidation. T Technology > TS Manufactures > TS699 Powder coating of metals |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Nadira Ghina Azzahra |
| Date Deposited: | 19 Feb 2021 07:36 |
| Last Modified: | 03 Jul 2024 19:21 |
| URI: | http://repository.its.ac.id/id/eprint/82678 |
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