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Materials 2009, 2(4), 1923-1928; doi:10.3390/ma2041923

Porous Ba Ferrite Prepared from Wood Template

Ceramics Research Laboratory, Nagoya Institute of Technology/ 10-6-29 Asahigaoka, Tajimi, Gifu 507-0071, Japan
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Received: 5 November 2009 / Revised: 16 November 2009 / Accepted: 19 November 2009 / Published: 20 November 2009
(This article belongs to the Special Issue Porous Materials)
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Abstract

Ba ferrite materials with porous microstructures were prepared from a natural cedar wood template in order to investigate new electromagnetic shielding materials. The wood templates were infiltrated with barium nitrate and iron nitrate solutions (molar ratio = 1:12) and dried to form ferrite gel, then, they were sintered in air at a temperature between 800 °C and 1400 °C. The 1-dimensional porous structures were retained after sintering and the pore size was approximately 10–20 μm. These ferrites show large coercive force and anisotropy field. The largest coercive force was obtained for the specimen sintered at 800 °C.
Keywords: porous ceramics; Ba-ferrite; wood template; magnetic anisotropy porous ceramics; Ba-ferrite; wood template; magnetic anisotropy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Adachi, N.; Kuwahara, M.; Sia, C.K.; Ota, T. Porous Ba Ferrite Prepared from Wood Template. Materials 2009, 2, 1923-1928.

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