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Iron source effect on BaFe12O19 preparation through citrate route

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Title: Iron source effect on BaFe12O19 preparation through citrate route
Authors: KIKKAWA, Shinichi Browse this author
AIBA, Kentaro Browse this author
MASUBUCHI, Yuji Browse this author →KAKEN DB
SAEKI, Isao Browse this author
Keywords: BaFe12O19
Iron acetyl
Issue Date: 1-Jan-2009
Publisher: Ceramic Society of Japan
Journal Title: Journal of the Ceramic Society of Japan
Volume: 117
Issue: 1361
Start Page: 15
End Page: 17
Publisher DOI: 10.2109/jcersj2.117.15
Abstract: Both magnetization and coercivity should be controlled on BaFe12O19 for its usage in magnetic recording. Preparation of BaFe12O19 was studied in citrate route by changing the kinds of iron source. Stoichiometric mixtures of iron compounds with Ba(NO3)2 were dissolved in distilled water. They were mixed with citric acid aqueous solution and then condensed on a hot plate to their gelatinous products. Their prefired products below 450°C were pelletized and then fired in a temperature range between 750 and 900°C. The product from iron nitrate was a mixture of α-Fe2O3, BaFe2O4 and a small amount of BaFe12O19. The product from Fe(acac)3 was pure BaFe12O19 fine powder with a crystallite size of < 90 nm. The fine powdered product at 850°C had a saturation magnetization of 58.5 emu·g-1 and a coercivity of 5.5 kÖe.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 鱒渕 友治

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