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

doi:10.2497/jjspm.63.761

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 journal › Article › peer-review

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 (R_Ca/Ti) of 0.9 and the laser powder (P_L) of 60 W, CaTiO₃ film having pyramidal facets in a cone-like morphology was deposited, whereas at R_Ca/Ti = 1.6 and P_L = 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 language	English
Pages (from-to)	761-765
Number of pages	5
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	63
Issue number	8
DOIs	https://doi.org/10.2497/jjspm.63.761
Publication status	Published - 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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High-speed deposition of CaO-rich calcium titanate film by laser CVD and its change in MICROSTRUCTURE by immersion in simulated body fluid. / Katsui, Hirokazu; Kumagai, Yuki; Goto, Takashi.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 63, No. 8, 07.2016, p. 761-765.

Research output: Contribution to journal › Article › peer-review

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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.",

keywords = "Bioactive coating, CaO-rich calcium titanate, Calcium phosphate, Laser chemical vapor deposition, Morphology",

author = "Hirokazu Katsui and Yuki Kumagai and Takashi Goto",

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N2 - 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.

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