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 journalArticle

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 languageEnglish
Pages (from-to)265-269
Number of pages5
JournalScience and Engineering of Composite Materials
Volume18
Issue number4
DOIs
Publication statusPublished - 2011 Dec

Fingerprint

Apatites
Composite coatings
Apatite
Physical vapor deposition
Durapatite
Titanium
Hydroxyapatite
Flow of gases
Noble Gases
Inert gases
Nanoparticles
Supersonic flow
Body fluids
Bioactivity
Mach number
Nozzles
Evaporation
Deposits
Gases
Pipe

Keywords

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

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

In-vitro study on apatite/titanium composite coatings with supersonic free-jet PVD. / Yumoto, Atsushi; Yamamoto, Takahisa; Hiroki, Fujio; Shiota, Ichiro; Niwa, Naotake.

In: Science and Engineering of Composite Materials, Vol. 18, No. 4, 12.2011, p. 265-269.

Research output: Contribution to journalArticle

Yumoto, Atsushi ; Yamamoto, Takahisa ; Hiroki, Fujio ; Shiota, Ichiro ; Niwa, Naotake. / In-vitro study on apatite/titanium composite coatings with supersonic free-jet PVD. In: Science and Engineering of Composite Materials. 2011 ; Vol. 18, No. 4. pp. 265-269.
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