Pribadi, Romdhoni Graha (2019) Perilaku Oksidasi Paduan Amorfus Berbasis Zirkonium Pada Temperatur 400 - 450 °C. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Dalam penelitian ini, paduan amorf berbasis Zirkonium dengan 3 variasi komposisi yaitu Zr68Cu14Ni11Al7, Zr64.5Cu17Ni11Al7.5, dan Zr69.5Cu12Ni11Al7.5 dilakukan karakterisasi termal untuk mengetahui perilaku oksidasi pada temperatur 400, 425, dan 450 °C dengan waktu penahanan selama 4 jam di udara. Analisis termal dilakukan dengan menggunakan Differential Scanning Calorimetry (DSC) dan Thermogravimetric Analyzer (TGA) sedangkan analisis prodak oksida yang terbentuk dilakukan dengan menggunakan X-Ray Difractometer (XRD). Berdasarkan data kinetika oksidasi maka mengikuti hukum parabolik dengan didapatkan laju oksidasi yang meningkat dengan adanya penambahan temperatur. Prodak oksida yang terbentuk selama oksidasi isotermal pada paduan Zr64.5Cu17Ni11Al7.5 dan Zr69.5Cu12Ni11Al7.5 terdiri dari ZrO2 (tetragonal) sebagai fasa dominan serta ZrO2 (monoklinik) dan CuO sebagai fasa minor. Fasa intermetalik juga tebentuk pada kedua sampel yang terdiri dari Zr2Ni dan Zr2Cu.
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In this study, Zirconium-based amorphous alloys with 3 composition variations were Zr68Cu14Ni11Al7, Zr64.5Cu17Ni11Al7.5, Zr69.5Cu12Ni11Al7.5 thermal characterization was carried out to determine oxidation behavior at temperatures of 400, 425, and 450 °C with a holding time of 4 hours in air. Thermal analysis was carried out using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analyzer(TGA) while the analysis of oxide products formed was carried out using X-Ray Diffractometer (XRD). Based on the oxidation kinetics data it follows parabolic law by obtaining an oxidation rate which increases with the addition of temperature. The oxides produced during isothermal oxidation in the Zr64.5Cu17Ni11Al7.5 and Zr69.5Cu12Ni11Al7.5 alloys consist of ZrO2 (tetragonal) as the dominant phase and ZrO2 (monoclinic) and CuO as minor phases. The intermetallic phase is also formed in both samples consisting of Zr2Ni and Zr2Cu.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 621.402 5 Pib p-1 2019 |
| Uncontrolled Keywords: | Oxidation, Thermal analysis, Zirconium based alloy |
| Subjects: | Q Science > QC Physics > QC271 Temperature measurements Q Science > QC Physics > QC 611.97.T46 Temperature effects. Including transition temperature |
| Divisions: | Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Romdhoni Graha Pribadi |
| Date Deposited: | 09 Jul 2021 08:07 |
| Last Modified: | 09 Jul 2021 08:07 |
| URI: | http://repository.its.ac.id/id/eprint/60867 |
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