Preparation of Magnetic Particles by the Pyrolysis of Ferrous Oxalate in Various Atmospheres.
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- Kobayashi Hidehiko
- Dept. of Applied Chemistry, Fac. of Engineering, Saitama University
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- Ikeda Takashi
- Dept. of Applied Chemistry, Fac. of Engineering, Saitama University
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- Mitamura Takashi
- Fac. of Engineering, Saitama Institute of Technology
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- Kakizaki Koichi
- Dept. of Functional Materials Science, Fac. of Engineering Saitama University
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- Hiratsuka Nobuyuki
- Dept. of Functional Materials Science, Fac. of Engineering Saitama University
Bibliographic Information
- Other Title
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- 磁性材料の化学 各種雰囲気下での熱分解によるシュウ酸鉄からの磁性粉末の調製
- カクシュ フンイキカ デ ノ ネツ ブンカイ ニヨル シュウサン テツ カラ
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Abstract
Preparation conditions and formation process of magnetic particles, Fe3O4, γ-Fe2O3, ε-FexN and γ'-Fe4N were studied by the pyrolysis of ferrous oxalate derived from FeSO4 and (NH4)2C2O4 at temperatures of 300-600°C in various atmospheres such as air, Ar gas, CO2 gas and NH3 gas. The resulting product from the pyrolysis of the ferrous oxalate at 350°C in various atmospheres was a reactive Fe3O4, and γ-Fe2O3 and ε-FexN were prepared at heating the Fe3O4 at 350°C in air and at 500°C in NH3 gas, respectively. The preparation conditions of single phase Fe3O4, γ-Fe2O3, ε-FexN and γ'-Fe4N fine powders from the ferrous oxalate were as follows: (1)Fe3O4 were prepared by heating both at 350-600°C for lh in CO2 gas and at 350-450°C for lh in Ar gas. (2) γ-Fe2O3 was prepared by heating at 350°C for lh in air. (3)ε-FexN was prepared by heating at 500°C for 2h in NH3 gas. (4)γ'-Fe4N was prepared by heating at 600°C for 2h in NH3 gas.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 43 (1), 89-94, 1996
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390282681286072576
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- NII Article ID
- 10002011133
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 3918040
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed