Effect of Surface Treatment on Dispersibility and EPD Behavior of Fine SiC Powder in Aqueous Suspension
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- ZHOU Yang
- Department of Mechanical Engineering, Beijing Jiaotong University
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- HONDA Akiko
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
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- TAKEDA Tomokazu
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
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- UEHARA Masato
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
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- ENOMOTO Naoya
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
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- HOJO Junichi
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
説明
Surface treatments, such as calcination, acid solution leaching and alkali solution leaching, were used to improve the dispersibility and increase the electrophoretic deposition (EPD) weight for a fine SiC powder. Main impurities including hydrophobic free carbon and hydrocarbon on the particle surface caused the low dispersibility and less deposition for the as-received powder in aqueous suspension. After calcination, the dispersibility and deposition weight were enhanced obviously. Acid leaching and alkali leaching were more effective to improve the dispersibility. The deposition weights of the two kinds of powders were about 4 times larger than that of the as-received powder. Slight oxidation on the particle surface after acid leaching led to the largest deposition weight for the acid leached powder. The reason for the improvement caused by different treatments was discussed according to the results of zeta potential, FTIR, XPS, and surface acidity analyses.
収録刊行物
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- Journal of the Ceramic Society of Japan, Supplement
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Journal of the Ceramic Society of Japan, Supplement 112 (0), S94-S99, 2004
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390282680502560384
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- NII論文ID
- 130004610348
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- ISSN
- 13492756
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可