書誌事項
- タイトル別名
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- Formation Mechanism of a Bixbyite .BETA.-Fe2O3
- ビックスバイトガタ ベータ Fe2O3 ノ セイセイ キコウ
- Formation Mechanism of a Bixbyite β-Fe2O3
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Formation mechanism of β-Fe2O3 particles was investigated by controlling the preparation conditions such as the mixing ratio of NaFe(SO4)2 and Na3Fe(SO4)3 to NaCl and the heat treatment temperature. The heat treatment temperature strongly affected the particle shapes and sizes. β-Fe2O3 was found to be formed by two different reactions; one is a solid state reaction below 490 °C, and another is a liquid phase-mediated reaction above 490 °C. β-Fe2O3 had granular shape with a diameter of about 50 to 100 nm below 490 °C, while at high temperatures above 490 °C cubic particles with relatively large size of about 500 nm to 2 μm were produced. We found that this dramatically change of particle morphology including their sizes and shapes was caused by the effects of the liquid phase in the reaction.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 58 (9), 529-534, 2011
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390282681288126848
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- NII論文ID
- 10029774368
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- NII書誌ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BC3MXht1GltrfM
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 11255478
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可