Development of an Electrophoretic Sol-Gel Coating Process for Porous Metals

• Inoue Masahiro

  The Institute of Scientific and Industrial Research, Osaka University

• Hyun Soong-Keun

  The Institute of Scientific and Industrial Research, Osaka University

• Suganuma Katsuaki

  The Institute of Scientific and Industrial Research, Osaka University

• Nakajima Hideo

  The Institute of Scientific and Industrial Research, Osaka University

抄録

An electrophoretic sol-gel coating process was developed for applying to surface modification of metallic materials with complicated shapes such as porous metals. In this process, sol-gel transformation is directly induced on the substrates. In the present work, the formation of TiO₂ coating layer on SUS 304 substrates is discussed as a practical example of the coating process. The colloidal particles derived from hydrolysis of titanium tetraisopropoxide in ethanol can be deflocculated using a small amount of CaCl₂ to form a transparent solution. When a dc voltage of 1–5 V was applied between the substrate (cathod) and counter electrode in this solution, the gel film was formed on the substrate. After subsequent water-soaking and annealing processes, the coating layers with no cracking were obtained successfully on the substrate. As the results of X-ray photoelectron spectroscopy, the coating layers were found to consist of TiO₂ doped with Ca²⁺ ions.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 47 (9), 2161-2166, 2006

  公益社団法人 日本金属学会

キーワード

• porous metals
• coating
• electrophoresis
• sol-gel process
• deflocculation

詳細情報

• CRID: 1390282679227587328
• NII論文ID: 130004453281
• NII論文ID: 10018248601
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.47.2161
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 8061701
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8061701
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/47/9/47_9_2161/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可