Development of an Electrophoretic Sol-Gel Coating Process for Porous Metals
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- Inoue Masahiro
- The Institute of Scientific and Industrial Research, Osaka University
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- Hyun Soong-Keun
- The Institute of Scientific and Industrial Research, Osaka University
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- Suganuma Katsuaki
- The Institute of Scientific and Industrial Research, Osaka University
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- Nakajima Hideo
- The Institute of Scientific and Industrial Research, Osaka University
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Abstract
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.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 47 (9), 2161-2166, 2006
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679227587328
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- NII Article ID
- 130004453281
- 10018248601
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 8061701
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed