Nurlela, - (2017) Pengaruh Penambahan Polyethylene Glycol (Peg) Dan Ukuran Butir Terhadap Sifat Kuat Tekan Bahan Target Karbon Berbahan Dasar Tempurung Kelapa Untuk Deposisi Lapisan Tipis. Sarjana thesis, Universitas Brawijaya.
Abstract
Pembuatan lapisan tipis dengan teknik physical vapor deposition memerlukan bahan target karbon berupa pellet dengan kemurnian karbon yang tinggi dan sifat mekanik yang baik. Serbuk karbon dengan kemurnian yang tinggi digiling (milling) menggunakan alat rotary mixer pada kecepatan 150 rpm, 190 rpm dan 230 rpm selama 20 jam sehingga diperoleh serbuk karbon dengan ukuran butir dalam orde mikro, yaitu 1,155μm, 0, 6771 μm, dan 0,8076 μm. Untuk menguatkan interaksi antar karbon pada bahan target, dilakukan penambahan polimer PEG (polyethylene glycol) sebagai binder sebanyak 20%, 25% dan 30%. Karbon dan PEG dicampur dengan metode mechanical mixing pada suhu 50℃ selama 1 jam, lalu dikompaksi dengan kekuatan sebesar 5 ton pada suhu 60℃ selama 30 menit. Terjadi peningkatan nilai kuat tekan terhadap ukuran butir karbon yang semakin kecil pada penambahan PEG sebanyak 20% dan 30%. Penambahan PEG sebanyak 20%, 25% dan 30% pada bahan target memberikan nilai kuat tekan yang cenderung menurun karena persentase penambahan PEG yang berlebihan. Nilai kuat tekan tertinggi yaitu 4,860 × 104
English Abstract
The fabrication of a thin film by physical vapor deposition technique requires a carbon pellet target material with high carbon purity and good mechanical properties. High-purity carbon milled powders using rotary mixer at 150 rpm, 190 rpm and 230 rpm for 20 hours to obtain carbon powder with grain size in micro-order, 1.155μm, 0, 6771 μm and 0, 8076 μm. To strengthen the interaction of carbon in the target material, the addition of PEG polymer (polyethylene glycol) as binder as much as 20%, 25% and 30%. Carbon and PEG are mixed with mechanical mixing method at 50 ℃ for 1 hour, then compressed with power of 5 ton at 60 ℃ for 30 min. There is an increase in compressive strength value to smaller carbon grain size in the addition of PEG as much as 20% and 30%. Addition of PEG as much as 20%, 25% and 30% on the target material gives a compressive strength value which tends to decrease due to the percentage of excessive PEG addition. The highest compressive strength value is 4,860 × 104
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FMIPA/2017/363/051709703 |
| Uncontrolled Keywords: | karbon, bahan target, binder, polyethylene glycol, ballmilling,kuat tekan |
| Subjects: | 500 Natural sciences and mathematics > 530 Physics > 530.4 States of matter > 530.42 Liquid-state physics > 530.427 5 Thin films |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika |
| Depositing User: | Nur Cholis |
| Date Deposited: | 30 Oct 2017 01:44 |
| Last Modified: | 23 Nov 2021 06:33 |
| URI: | http://repository.ub.ac.id/id/eprint/4515 |
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