Preparation of TiO2 coating on dental metal materials by plasma CVD

Ryotaro Marumori, Teiichi Kimura, Takashi Goto, Masanobu Yoda, Kohei Kimura

研究成果: Article査読

1 被引用数 (Scopus)

抄録

In this study, TiO2 films were prepared on Ag-Pd alloys by Plasma-enhanced Chemical Vapor Deposition (PECVD) using Ti(O-i-Pr) 2(dpm)2 precursor. Ag-Pd alloys are widely used as a substrate material of a resin-veneered dental crown. Since an adhesion of a dental resin to the Ag-Pd alloy substrate is poor, protuberances are usually formed on the substrate surface to sustain the mechanical retention. One of the weak points in the resin-veneered dental crown is that a mechanical retention should be indispensable to fix the resin onto the metal frame. Instead of mechanical retention, TiO2 films were prepared on the substrates. The effects of the deposition conditions on the crystalline phases, microstructures, and color of the deposited films were investigated. As a result, at a substrate pre-heating temperature Tdep=500 °C, microwave power PM = 2 kW, deposition pressure Ptot,=0.4 or 0.7 kPa, the film color changed from black to white, and crystalline phase was anatase. And the microstructure of the film was granular. The grain size was a diameter of about 100nm. These are optimum deposition conditions.

本文言語English
ページ(範囲)331-335
ページ数5
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
55
5
DOI
出版ステータスPublished - 2008 5月

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学
  • 金属および合金
  • 材料化学

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