Preparation and characterization of silane/Mg(OH)2 composite films prepared on flame-retardant Mg-4%Al-1%Ca alloy by steam and spin coatings

Tomohiro Miyashita, Momo Inamura, Shunsuke Kishino, Takahiro Ishizaki

研究成果: Article査読

抄録

Corrosion resistant films were prepared on Mg-4Al-1Ca (ACa41) alloy by steam coating, spin coating, or steam coating followed by spin coating. The chemical and corrosion resistant properties of the films were characterized by using SEM, XRD, FT-IR, and electrochemical methods. XRD patterns revealed that the film prepared by steam coating was composed of crystal Mg(OH)2 and Mg-Al layered double hydroxide (LDH). FT-IR spectra showed the presence of Si-O, C-H, Mg-O, and Al-O bonds in the film prepared by steam coating followed by spin coating, resulting in the formation of silane/Mg(OH)2 composite film. Potentiodynamic polarization curves of the film prepared by the two steps coating showed high corrosion resistance, and the corrosion current density of the composite film decreased considerably compared to those of the bare ACa41, the film prepared by steam coating or spin coating.

本文言語English
ページ(範囲)91-96
ページ数6
ジャーナルKeikinzoku/Journal of Japan Institute of Light Metals
70
3
DOI
出版ステータスPublished - 2020

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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