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All Journal Mechanical Engineering for Society and Industry
Abdullah Shahab
Institut Teknologi Sepuluh Nopember Surabaya
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Exploring the potential of Indonesian iron sand in the formation of iron nitride for magnetic applications Sidharta, Indra; Syah, Rakhasoni Firman; Sutikno, Sutikno; Darminto, Darminto; Shahab, Abdullah
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.13234

Abstract

Iron nitride is a transition metal material that exhibits ferromagnetic properties at room temperature, making it a suitable candidate for use in Soft Magnetic Composites (SMC) applications. Previous research showed that iron nitride can be synthesized using nano-sized iron oxide powder derived from processed natural iron sand through gas nitriding. Considering the abundance of iron sand in Indonesia, there is a need to carry out an investigation related to iron sand-based SMC. Therefore, this research aims to synthesize iron nitride material using the abundant natural iron sand discovered in Indonesia. This study used iron oxide material synthesized from locally obtained natural iron sand, in the form of Fe3O4 and Fe2O3. Iron oxide undergoes coprecipitation and was subsequently exposed to the gas nitriding process with a holding time of 4 hours and a gas flow of 150 mL/min in NH3 gas. The results show that iron nitride is formed after nitriding of iron oxide powders, and the phases formed include ε-Fe3N and γ’-Fe4N. The synthesized material exhibits soft magnetic properties, with saturation magnetization values ranging from the highest at 75.41 emu/g and the lowest at 18.9 emu/g.
Co-Authors Darminto . Indra Sidharta Sutikno Sutikno Syah, Rakhasoni Firman