- 著者
-
内田 有紀子
大石 響子
中西 真
藤井 達生
高田 潤
草野 圭弘
菊池 丈幸
- 出版者
- 一般社団法人 粉体粉末冶金協会
- 雑誌
- 粉体および粉末冶金 (ISSN:05328799)
- 巻号頁・発行日
- vol.52, no.8, pp.640-645, 2005
- 被引用文献数
-
2
2
We have successfully prepared Carbon/Fe-Co alloy composites starting from metal organic precursors synthesized by polymerized complex method. The carbon/Fe-Co alloy composites were obtained after the carbonization of the precursors heat-treated at ambient pressure and lower temperatures ranging from 500 to 700°C in N<sub>2</sub> gas flow. Crystalline sizes of both carbon matrix and Fe-Co alloy particles were determined by X-ray diffraction measurements as a function of the Co concentration and the carbonized temperature. The alloy particles were widely dispersed in the carbon matrix and the particle size carbonized at 600°C was about 20∼50 nm observed by scanning electron microscopy. The composite carbonized at 600°C had very small coercivity of 14 Oe and exhibited relatively large permeability spectra at frequency of GHz range.