Fabrication and characterization of ultra-water-repellent alumina-silica composite films

Takahiro Ishizaki, Nagahiro Saito, Yasushi Inoue, Makoto Bekke, Osamu Takai

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Ultra-water-repellent (UWR) films were prepared by microwave plasma-enhanced chemical vapour deposition using trimethylmethoxysilane and aluminium (III) diisopropoxide ethylacetoacetate (ADE) as raw materials. The film was mainly composed of silica and alumina and was apparently transparent. The film thickness was approximately 500 nm. The sample surface was treated with an organosilane in order to introduce hydrophobic groups. The hydrophobic modification led to a water contact angle of more than 150°, whose value corresponds to the UWR surface. The hardness of film with an optimized Al content was significantly improved compared with that without Al. The maximum hardness was 1.71 GPa. In consequence, we successfully prepared an UWR film in the silica-alumina system.

Original languageEnglish
Article number014
Pages (from-to)192-197
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume40
Issue number1
DOIs
Publication statusPublished - 2007 Jan 7
Externally publishedYes

Fingerprint

Aluminum Oxide
Composite films
Silicon Dioxide
Alumina
aluminum oxides
Silica
silicon dioxide
Fabrication
fabrication
composite materials
Water
water
hardness
Hardness
Plasma enhanced chemical vapor deposition
Aluminum
surface water
Contact angle
Film thickness
Raw materials

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Fabrication and characterization of ultra-water-repellent alumina-silica composite films. / Ishizaki, Takahiro; Saito, Nagahiro; Inoue, Yasushi; Bekke, Makoto; Takai, Osamu.

In: Journal of Physics D: Applied Physics, Vol. 40, No. 1, 014, 07.01.2007, p. 192-197.

Research output: Contribution to journalArticle

Ishizaki, Takahiro ; Saito, Nagahiro ; Inoue, Yasushi ; Bekke, Makoto ; Takai, Osamu. / Fabrication and characterization of ultra-water-repellent alumina-silica composite films. In: Journal of Physics D: Applied Physics. 2007 ; Vol. 40, No. 1. pp. 192-197.
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