High-speed deposition of CaO-rich calcium titanate film by laser CVD and its change in MICROSTRUCTURE by immersion in simulated body fluid

Hirokazu Katsui, Yuki Kumagai, Takashi Goto

Research output: Contribution to journalArticle

Abstract

Calcium titanate (CaTiO3) and CaO-rich calcium titanate compound films were prepared by laser chemical vapor deposition (CVD), and the change in morphology by immersion in simulated body fluid was investigated. At the Ca/Ti supplying ratio (RCa/Ti) of 0.9 and the laser powder (PL) of 60 W, CaTiO3 film having pyramidal facets in a cone-like morphology was deposited, whereas at RCa/Ti = 1.6 and PL = 60 W, Ca-rich calcium titanate compound film with a cauliflower-like morphology was formed at the deposition rate of 225 μm h-1. By immersion in Hanks' solution for 259.2 ks, the Ca-rich calcium titanate compound film exhibited the significant formation of calcium phosphate granules covering the film surface, while a small amount of calcium phosphate precipitates was partially formed on the CaTiO3 film surface.

Original languageEnglish
Pages (from-to)761-765
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume63
Issue number8
DOIs
Publication statusPublished - 2016 Jul

Keywords

  • Bioactive coating
  • CaO-rich calcium titanate
  • Calcium phosphate
  • Laser chemical vapor deposition
  • Morphology

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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