Pengaruh Variasi Laju Aliran Gas Pada Proses Nitriding Fe3o4 Menggunakan Media Gas Nh3

Neil, Hansel Arden (2021) Pengaruh Variasi Laju Aliran Gas Pada Proses Nitriding Fe3o4 Menggunakan Media Gas Nh3. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

	Text 02111640000219-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (1MB) | Request a copy
	Text 02111640000219-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2023. Download (1MB) | Request a copy

Abstract

Besi merupakan salah satu material yang baik dalam penggunaan magnet. Gaya magnet sendiri dapat dihasilkan dan disimpan oleh material atau benda tertentu dan diklasifikasikan menjadi tiga yaitu; Ferromagnetik, Paramagnetik, dan Diamagnetik. Material besi pun dapat di produksi dengan banyak bentuk, salah satunya adalah pasir besi. Pasir besi terbukti memiliki banyak sekali manfaatnya seperti Magnetit (Fe3O4). Magnetit memiliki banyak kegunaan salah satunya yaitu digunakan sebagai bahan utama pita kaset. Meskipun seperti itu, potensi pasir besi di Indonesia masih belum benar-benar diketahui jumlah dan sebarannya dikarenakan kurangnya informasi dan belum dilakukannya pemetaan lebih detailnya, sehingga pemanfaatan dan pengembangan pasir besi kurang optimal. Nitridasi pada pasir besi terbukti dapat menghasilkan serbuk besi nitrida (Fe¬N). Serbuk besi nitride yang telah dihasilkan dari proses Nitridasi terbukti mengalami peningkatan karakteristik besi seperti, kekerasan permukaan material, kelelahan material, resistansi terhadap korosi, dan peningkatan saturasi magnet pada material. Pengoptimalan penggunaan Pasir Besi Nitrida di Indonesia juga masih sangat kurang, maka dari itu dilakukan penelitian tugas akhir Pengaruh Variasi Laju Aliran Gas Pada Proses Nitriding Fe3O4 Menggunakan Media Gas NH3.
Pada penelitian ini akan dilakukan proses Nitridasi Magnetit (Fe3O4) menggunakan media Gas Ammonia (NH3). Dimana sampel Fe3O4 akan dibagi menjadi 6 sampel yang tiap sampelnya bermassa 10 gram. Lalu dilanjutkan dengan adanya proses Nitridasi. Perlakuan nitridasi dilakukan menggunakan tube furnace di Laboratorium Molina Pusat Unggulan IPTEK-Sistem Kontrol Otomotif (PUI-SKO) ITS. Pada penelitian ini dilakukan proses nitridasi dengan memanaskan sampel Fe3O4 pada suhu 625oC dengan variasi laju aliran 100 mL/min; 150 mL/min; 200 mL/min, dengan waktu tahan 2 jam dan 4 jam, dan tekanan 0.03 Mpa.
Ditemukan adanya pengaruh variasi Laju Aliran Gas pada proses Nitridasi. Semakin naiknya laju aliran gas yang diaplikasikan pada proses nitridasi, maka presentasi Besi Nitrida yang diapatkan akan semakin menurun. Pada laju aliran 100 mL/min ditemukan presentase Fe3N paling banyak yaitu 60.3%, lalu pada laju aliran gas 150 mL/min presentase Fe3N yang didapatkan sebesar 5.2%, dan pada laju aliran gas 200 mL/min ditemukan presentase Fe3N sebanyak 12.5%. Pada aliran 150 mL/min terlihat presentasi Besi Nitrida yang paling sedikit namun, melihat hasil yang didapatkan pada laju aliran gas 200 mL/min juga cukup sedikit, dapat disimpulkan bahwa laju aliran gas yang tinggi akan mempengaruhi proses Nitridasi dan menghasilkan presentase Besi Nitrida yang lebih kecil.
=====================================================================================================
Iron is one of the good materials in the use of magnets. The magnetic force itself can be produced and stored by certain materials or objects and classified into three namely; Ferromagnetic, Paramagnetic, and Diamagnetic. Iron material can also be produced in many forms, one of which is iron sand. Iron sand is proven to have many benefits such as Magnetite
(Fe3O4). Magnetite has many uses, one of which is used as the main material of cassette tapes. Even so, the potential of iron sand in Indonesia is still not really known the amount and distribution due to lack of information and not yet done mapping in more detail, so the utilization and development of iron sand is less optimal. Nitrides in iron sand are proven to produce nitride iron powder (Fe¬N). Nitride iron powder that has been produced from the nitride process is proven to experience improved iron characteristics such as, material surface hardness, material fatigue, corrosion resistance, and increased magnetic saturation of the material. Optimization of the use of Nitride Iron Sand in
Indonesia is also still very lacking, therefore the final task of research is carried out the influence of variations in the rate of gas flow in the Process Nitriding Fe3O4 Using NH3 Gas Media.
In this study will be conducted magnetite nitrides process
(Fe3O4) using Ammonia Gas media (NH3). Where the sample Fe3O4 will be divided into 6 samples that each sample weighs 10 grams. Then continued with the nitrides process. The nitrides treatment was carried out using a tube furnace at the Molina Laboratory of the Center for Excellence in Automotive Control Systems (PUI-SKO) ITS. In this study, the nitrides process was conducted by heating fe3O4 samples at 625oC with a variation in
flow rate of 100 mL/min; 150 mL/min; 200 mL/min, with a
resistant time of 2 hours and 4 hours, and a pressure of 0.03
Mpa.
There is an influence of variations in gas flow rate in the
nitrides process. The increasing rate of gas flow applied to the nitrides process, the presentation of compressed Iron Nitride will decrease. At a flow rate of 100 mL /min found the most percentage of Fe3N is 60.3%, then at the gas flow rate of 150 mL / min fe3n percentage obtained by 5.2%, and at the gas flow rate of 200 mL / min found fe3n percentage as much as 12.5%. At a flow of 150 mL /min seen the presentation of iron nitride the least however, looking at the results obtained at a gas flow rate of 200 mL / min is also quite a bit, it can be concluded that the high rate of gas flow will affect the nitrides process and produce a smaller percentage of Iron Nitride

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Besi Nitrida, Nitridasi, Nitriding, Iron Nitride, Magnetit
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN408.N56 Sand, Iron
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Hansel Arden Neil
Date Deposited:	09 Sep 2021 05:03
Last Modified:	09 Sep 2021 08:12
URI:	http://repository.its.ac.id/id/eprint/91918

Actions (login required)

View Item