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

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

研究成果: Article査読

1 被引用数 (Scopus)


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.

ジャーナルScience and Engineering of Composite Materials
出版ステータスPublished - 2011 12月

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料化学


「In-vitro study on apatite/titanium composite coatings with supersonic free-jet PVD」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。