Wijaya, Muhammad Faza (2026) Analisis Pengaruh Temperatur Dan Waktu Sintering Sebagai Post Treatment Electrophoretic Deposition Tehadap Lapisan HA-Sr Pada Substrat TI6Al4V Untuk Aplikasi Implan. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Paduan titanium Ti-6Al-4V banyak digunakan sebagai material implan ortopedi karena sifat mekaniknya yang unggul, namun bersifat bioinert sehingga memerlukan modifikasi permukaan untuk meningkatkan bioaktifitas. Penelitian ini bertujuan menganalisis pengaruh variasi temperatur dan waktu sintering sebagai post-treatment terhadap karakteristik lapisan hidroksiapatit dan stronsium (HA-Sr) pada substrat Ti6Al4V. Pelapisan dilakukan menggunakan metode Plasma Electrolytic Oxidation (PEO) sebagai interlayer, dilanjutkan dengan Electrophoretic Deposition (EPD). Proses post treatment sintering dilakukan pada temperatur 600 °C, 700 °C, dan 800 °C dengan waktu penahanan 1 jam, 1,5 jam, dan 2 jam. Karakterisasi meliputi analisis fasa kristalin X-Ray Diffraction (XRD), morfologi dan komposisi (SEM-EDX), ketebalan lapisan (SEM cross-section), kekuatan adhesi (uji pull-off), serta uji viabilitas (MTT assay). Hasil penelitian menunjukkan bahwa peningkatan temperatur dan waktu sintering meningkatkan densifikasi lapisan dan kekuatan adhesi hingga kondisi optimum pada 700 °C selama 1,5 jam. Sintering pada temperatur dan waktu yang lebih tinggi menyebabkan over-sintering yang ditandai dengan peningkatan kegagalan kohesif dan penurunan homogenitas lapisan. Uji MTT menunjukkan bahwa variasi sintering 600 °C selama 1,5 jam dan 700 °C selama 1 jam memiliki viabilitas sel di atas 70%, sehingga berpotensi untuk aplikasi implan ortopedi.
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Ti6Al4V titanium alloy is widely used as an orthopedic implant material due to its superior mechanical properties; however, its bioinert nature requires surface modification to enhance bioactivity. This study aims to analyze the effect of sintering temperature and holding time as post-treatment parameters on the characteristics of strontium-doped hydroxyapatite (HA–Sr) coatings on Ti-6Al-4V substrates. The coating was produced using Plasma Electrolytic Oxidation (PEO) as an interlayer, followed by Electrophoretic Deposition (EPD). Posttreatment sintering was carried out at temperatures of 600 °C, 700 °C, and 800 °C with holding times of 1 h, 1.5 h, and 2 h. Characterization included phase analysis using X-ray Diffraction (XRD), morphology and elemental composition using SEM–EDX, coating thickness evaluation via cross-sectional SEM, adhesion strength assessment through pull-off testing, and cell viability evaluation using the MTT assay. The results indicate that increasing sintering temperature and holding time enhances coating densification and adhesion strength up to an optimum condition at 700 °C for 1.5 h. Higher sintering temperatures and longer holding times result in over-sintering, characterized by increased cohesive failure and reduced coating homogeneity. MTT assay results show that coatings sintered at 600 °C for 1.5 h and 700 °C for 1 h exhibit cell viability above 70%, indicating their potential suitability for orthopedic implant applications.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Ti-6Al-4V, hidroksiapatit, stronsium, plasma electrolytic oxidation, electrophoretic deposition, sintering, bioaktivitas ============================================================ Ti6Al4V, hydroxyapatite, strontium, plasma electrolytic oxidation, electrophoretic deposition, sintering, bioactivity |
| Subjects: | T Technology > TP Chemical technology > TP248.3 Biochemical engineering. Bioprocess engineering T Technology > TS Manufactures > TS205 Metals--Heat treatment. 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: | Muhammad Faza Wijaya |
| Date Deposited: | 04 Feb 2026 05:57 |
| Last Modified: | 04 Feb 2026 05:57 |
| URI: | http://repository.its.ac.id/id/eprint/130469 |
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