Porous Ba Ferrite Prepared from Wood Template
| Autor: | Chee Kiong Sia, Masayuki Kuwahara, Nobuyasu Adachi, Toshitaka Ota |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Sintering lcsh:Technology Article chemistry.chemical_compound Cedar wood General Materials Science Composite material lcsh:Microscopy Anisotropy Porosity lcsh:QC120-168.85 magnetic anisotropy lcsh:QH201-278.5 lcsh:T Ba-ferrite Coercivity wood template Microstructure chemistry lcsh:TA1-2040 Ferrite (magnet) lcsh:Descriptive and experimental mechanics Barium nitrate lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) porous ceramics lcsh:TK1-9971 |
| Zdroj: | Materials Volume 2 Issue 4 Pages 1923-1928 Materials, Vol 2, Iss 4, Pp 1923-1928 (2009) |
| ISSN: | 1996-1944 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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