Microstructure of hydroxyapatite-coated magnesium prepared in aqueous solution

Masanari Tomozawa, Sachiko Hiromoto, Yoshitomo Harada

研究成果: Article査読

53 被引用数 (Scopus)

抄録

Hydroxyapatite (HAp) coatings were directly formed on pure magnesium in aqueous solutions using C10H12CaN2Na2O8 (Ca-EDTA) and KH2PO4. The influence of the treatment temperature and concentration of Ca-EDTA on the microstructure of the coatings was investigated. The growth of the HAp crystals was promoted with an increase in the treatment temperature. The growth direction of HAp crystals was along [002]HAp regardless of the treatment temperature, and the HAp crystals then showed a rod-like shape. The HAp crystals contained Na and Mg. A Mg(OH)2 layer was formed between the HAp coating and the magnesium substrate above 363K. With a decrease in the treatment time, the formation of the Mg(OH)2 layer was suppressed. A dense and uniform HAp-coating layer was obtained without the formation of a Mg(OH)2 intermediate layer by adjusting the treatment time and concentrations of calcium and phosphate species.

本文言語English
ページ(範囲)3243-3247
ページ数5
ジャーナルSurface and Coatings Technology
204
20
DOI
出版ステータスPublished - 2010 7
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学

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