- Oxidation Study on the Fabrication of Fe-36Ni Oxide Powder from Its Scrap
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Jung Yeul Yun, Man Ho Park, Sangsun Yang, Dong-Won Lee, Jei-Pil Wang
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J Korean Powder Metall Inst. 2013;20(1):48-52.
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DOI: https://doi.org/10.4150/KPMI.2013.20.1.048
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 Abstract
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- A study of oxidation kinetic of Fe-36Ni alloy has been investigated using thermogravimetric apparatus (TGA) in an attempt to define the basic mechanism over a range of temperature of 400 to 1000°C and finally to fabricate its powder. The oxidation rate was increased with increasing temperature and oxidation behavior of the alloy followed a parabolic rate law at elevated temperature. Temperature dependence of the reaction rate was determined with Arrhenius-type equation and activation energy was calculated to be 106.49 kJ/mol. Based on the kinetic data and micro-structure examination, oxidation mechanism was revealed that iron ions and electrons might migrate outward along grain boundaries and oxygen anion diffused inward through a spinel structure, (Ni,Fe)_3O_4.
- Trend in Development of Metal Fiber Fabrication Process
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Man Ho Park, Jung Yeul Yun, Yoo Dong Hahn, Yo Seung Song
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J Korean Powder Metall Inst. 2012;19(6):458-465.
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DOI: https://doi.org/10.4150/KPMI.2012.19.6.458
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