Calcium phosphate coating of biomedical titanium alloys using metal-organic chemical vapour deposition

M. Nakai, M. Niinomi, H. Tsutsumi, K. Saito, T. Goto

研究成果: Article査読

10 被引用数 (Scopus)

抄録

Metal-organic chemical vapour deposition was used to fabricate hydroxyapatite (HAp) and α-tricalcium phosphate coatings on the surface of representative biomedical titanium alloys: Ti-29Nb-13Ta-4·6Zr, commercially pure Ti, and Ti-6Al-4V ELI. The effect of the substrate surface roughness, alloy composition and precursor temperature was investigated in relation to the type of calcium phosphate formed and the morphology and thickness of the HAp coating. The surface roughness of substrates mechanically polished by SiC paper was found to vary depending on the type of alloy, whereas the roughness of substrates buff polished using a colloidal SiO2 suspension was comparable. The type of calcium phosphate formed could be controlled by the precursor temperature. A coarse, granular microstructure was observed on the surface of the thicker HAp coatings formed on the rough polished substrates, while the thinner HAp coatings formed on the smooth polished substrates had a relatively dense and fine grained microstructure.

本文言語English
ページ(範囲)B8-B12
ジャーナルMaterials Technology
30
B1
DOI
出版ステータスPublished - 2015 2月 1

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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