ナフテン酸塩塗布膜の熱分解によるBaフェライト薄膜の作製

概要

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Preparation procedure of Ba-ferrite thin films was as follows. The butanol solutions of Ba and Fe naphthenate in molar ratios of n : 12 (n=1.0, 1.5, 2.0 and 2.5) were coated on Al_2O_3 ceramic substrates, dried at room temperature and 110℃, and then thermally decomposed at 550℃. The above operation was repeated 11 times, and then finally the specimens were heated at various temperatures from 700 to 1400℃. Result of X-ray diffraction of the obtained Ba-ferrite thin films showed that the most suitable molar mixing ratio of the naphthenates and the temperature of the final heating were 1.5 : 12 and 900'℃, respectively. The thin film prepared under the above conditions had saturation magnetization of 134 emu/cm^3, residual magnetization of 73 emu/cm^3, and coercive force of 4.42 kOe.
社団法人日本セラミックス協会の論文
1997-02-01