In-vitro study on apatite/titanium composite coatings with supersonic free-jet PVD

Atsushi Yumoto; Takahisa Yamamoto; Fujio Hiroki; Ichiro Shiota; Naotake Niwa

doi:10.1515/SECM.2011.051

In-vitro study on apatite/titanium composite coatings with supersonic free-jet PVD

Atsushi Yumoto, Takahisa Yamamoto, Fujio Hiroki, Ichiro Shiota, Naotake Niwa

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

1 Citation (Scopus)

Abstract

Hydroxyapatite (HAp) has many applications in the medical field. The objective of this study is to produce HAp/Ti composite coating with Supersonic Free-Jet PVD (SFJ-PVD). The SFJ-PVD is a technique to deposit nanoparticles with supersonic gas flow and to form a thick coating film. In a gas evaporation chamber, a source material is evaporated to form nanoparticles in an inert gas atmosphere. The nanoparticles are then carried to a substrate in a deposition chamber with an inert gas flow through a transfer pipe. The gas flow is generated by the pressure difference between the chambers and accelerated to the supersonic flow of 4.2 Mach through a specially designed supersonic nozzle. With SFJ-PVD, we obtain a uniform high-density HAp/Ti composite coating. XRD analysis reveals that the composite coating is composed of Ti and HAp. An in vitro study was carried out to investigate the bioactivity of the HAp/Ti composite coating under simulated body fluid.

Original language	English
Pages (from-to)	265-269
Number of pages	5
Journal	Science and Engineering of Composite Materials
Volume	18
Issue number	4
DOIs	https://doi.org/10.1515/SECM.2011.051
Publication status	Published - 2011 Dec

Keywords

Bio-material
Nanoparticle
Simulated body fluid (SBF)
Supersonic gas flow

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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title = "In-vitro study on apatite/titanium composite coatings with supersonic free-jet PVD",

abstract = "Hydroxyapatite (HAp) has many applications in the medical field. The objective of this study is to produce HAp/Ti composite coating with Supersonic Free-Jet PVD (SFJ-PVD). The SFJ-PVD is a technique to deposit nanoparticles with supersonic gas flow and to form a thick coating film. In a gas evaporation chamber, a source material is evaporated to form nanoparticles in an inert gas atmosphere. The nanoparticles are then carried to a substrate in a deposition chamber with an inert gas flow through a transfer pipe. The gas flow is generated by the pressure difference between the chambers and accelerated to the supersonic flow of 4.2 Mach through a specially designed supersonic nozzle. With SFJ-PVD, we obtain a uniform high-density HAp/Ti composite coating. XRD analysis reveals that the composite coating is composed of Ti and HAp. An in vitro study was carried out to investigate the bioactivity of the HAp/Ti composite coating under simulated body fluid.",

keywords = "Bio-material, Nanoparticle, Simulated body fluid (SBF), Supersonic gas flow",

author = "Atsushi Yumoto and Takahisa Yamamoto and Fujio Hiroki and Ichiro Shiota and Naotake Niwa",

note = "Funding Information: The authors are grateful to Mr. Satoru Komiyama for his support with the experiments. The authors would like to acknowledge the ECCERA Co., Ltd. for supplying the apatite powder used in the present study. One of the authors (A.Y.) was supported by a Grant-in-Aid for Young Scientist B (Grant No. 17760586 and Grant No. 19760515) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT).",

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doi = "10.1515/SECM.2011.051",

language = "English",

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AU - Yumoto, Atsushi

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AU - Hiroki, Fujio

AU - Shiota, Ichiro

AU - Niwa, Naotake

N1 - Funding Information: The authors are grateful to Mr. Satoru Komiyama for his support with the experiments. The authors would like to acknowledge the ECCERA Co., Ltd. for supplying the apatite powder used in the present study. One of the authors (A.Y.) was supported by a Grant-in-Aid for Young Scientist B (Grant No. 17760586 and Grant No. 19760515) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT).

PY - 2011/12

Y1 - 2011/12

N2 - Hydroxyapatite (HAp) has many applications in the medical field. The objective of this study is to produce HAp/Ti composite coating with Supersonic Free-Jet PVD (SFJ-PVD). The SFJ-PVD is a technique to deposit nanoparticles with supersonic gas flow and to form a thick coating film. In a gas evaporation chamber, a source material is evaporated to form nanoparticles in an inert gas atmosphere. The nanoparticles are then carried to a substrate in a deposition chamber with an inert gas flow through a transfer pipe. The gas flow is generated by the pressure difference between the chambers and accelerated to the supersonic flow of 4.2 Mach through a specially designed supersonic nozzle. With SFJ-PVD, we obtain a uniform high-density HAp/Ti composite coating. XRD analysis reveals that the composite coating is composed of Ti and HAp. An in vitro study was carried out to investigate the bioactivity of the HAp/Ti composite coating under simulated body fluid.

AB - Hydroxyapatite (HAp) has many applications in the medical field. The objective of this study is to produce HAp/Ti composite coating with Supersonic Free-Jet PVD (SFJ-PVD). The SFJ-PVD is a technique to deposit nanoparticles with supersonic gas flow and to form a thick coating film. In a gas evaporation chamber, a source material is evaporated to form nanoparticles in an inert gas atmosphere. The nanoparticles are then carried to a substrate in a deposition chamber with an inert gas flow through a transfer pipe. The gas flow is generated by the pressure difference between the chambers and accelerated to the supersonic flow of 4.2 Mach through a specially designed supersonic nozzle. With SFJ-PVD, we obtain a uniform high-density HAp/Ti composite coating. XRD analysis reveals that the composite coating is composed of Ti and HAp. An in vitro study was carried out to investigate the bioactivity of the HAp/Ti composite coating under simulated body fluid.

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In-vitro study on apatite/titanium composite coatings with supersonic free-jet PVD

Abstract

Keywords

ASJC Scopus subject areas

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