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Hydroxyapatite Formation on MOCVD-CaTiO3 Coated Ti

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Abstract:

Ca-Ti-O films were prepared by MOCVD using Ca(dpm)2 and Ti(OiPr)2(dpm)2 precursors. The phases, composition and morphology of Ca-Ti-O films changed depending on the molar ratio of Ca to Ti precursors (RCa/Ti), total pressure (Ptot) and substrate temperature (Tsub). CaTiO3 films in a single phase were obtained at Tsub = 973 and 1073 K. CaTiO3 films prepared at 873 K had a dense structure and smooth surface. CaTiO3 films prepared at Tsub = 1073 K had complicated rough surface with a cauliflower-like texture. Hydroxyapatite (HAp) formed in 3 days on the CaTiO3 film prepared at Tsub = 1073 K.

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Periodical:

Key Engineering Materials (Volume 352)

Pages:

301-304

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.352.301

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Online since:

August 2007

Authors:

Mitsutaka Sato, Rong Tu, Takashi Goto, Kyosuke Ueda, Takayuki Narushima

Keywords:

Calcium Titanate, Hanks`Solution, Hydroxyapatite (HAP), Metal-Organic Chemical Vapor Deposition

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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