Pradana, Andika Yoga (2016) Optimasi Parameter Proses Sol Gel Auto Combustion Pada Sintesis Barium Heksaferrit Untuk Aplikasi Radar Absorbing Material (Ram) Dengan Menggunakan Response Surface Methodology (Rsm) Dan Non-Linear Programming. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Nilai Koersivitas (Hc) dan Magnetik saturasi (Ms) dari Barium
heksaferrit (BaFe12O19) hasil sintesis melalui metode sol gel auto
combustion sangat tergantung pada nilai parameter proses yang
dipilih. Pada penelitian ini digunakan metode statistik Response
Surface Methodology (RSM) dan Non-linear programming untuk
menganalisa pengaturan parameter proses Sol Gel Auto Combustion
(fraksi mol dopan, pH, dan temperatur sintering) yang dapat
meminimumkan Hc dan memaksimumkan Ms serta menganalisa
hubungan antara parameter-parameter proses terhadap nilai Ms dan
Hc Barium Heksaferrit. Penelitian ini menggunakan data sekunder
dari penelitian Tugas Akhir dan Thesis yang telah dilakukan
sebelumnya di Laboratorium Fisika Material Jurusan Teknik
Material dan Metalurgi FTI ITS. Hasilnya dianalisa secara kuantitatif
menggunakan RSM untuk mendapatkan persamaan matematika.
Kondisi optimum didapatkan dari persamaan matematika yang
dioptimasi dengan metode non-linear programming. Dari hasil
analisa didapatkan nilai optimum Sifat Magnetik Barium Heksaferrit
dapat dicapai pada kondisi fraksi mol 0.6, pH 7.64, dan temperatur
sintering 1050°C dengan menghasilkan nilai Hc sebesar 0.03839 T
dan nilai Ms sebesar 87.6135 emu/gr. Pemberian variasi parameter
proses berpengaruh secara siginifikan terhadap nilai Hc dan Ms yang
didapatkan.
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Coercivity (Hc) and Magnetic saturation (Mr) values of Barium
hexaferrite (BaFe12O19) synthesized by sol gel auto combustion
method is heavily dependent on the the chosen process parameters. In
this study used statistical methods of Response Surface Methodology
(RSM) and non-linear programming to analyze the process parameter
setting of Sol Gel Auto Combustion (mole fraction dopants, pH, and
sintering temperature) that minimize Hc and maximizes Ms and
analyze the relationship between process parameters to the value of
Ms and Hc of Barium Hexaferrite. This study used secondary data
from Final Project and Thesis that has been done previously in the
Materials Physical Laboratory, Materials and Metallurgical
Engineering Department-FTI ITS. The results were analyzed
quantitatively using RSM to obtain a mathematical equation. The
optimum conditions were obtained from mathematical equations that
were optimized by the method of non-linear programming. From the
analysis results obtained optimum value of Barium Hexaferrite
magnetic properties could be achieved on the condition of the mole
fraction of 0.6, pH of 7.64, and the sintering temperature of 1050°C
to produce a Hc value of 0.03839 T and Ms value of 87.6135 emu/g.
Giving the variation of process parameters significantly affected the
value of Hc and Ms.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 669.967 25 Pra o |
| Uncontrolled Keywords: | Barium heksaferrit, Non-Linear Programming, Response Surface Methodology, Sol Gel Auto Combustion |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 25 Oct 2019 09:24 |
| Last Modified: | 25 Oct 2019 09:24 |
| URI: | http://repository.its.ac.id/id/eprint/71425 |
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