Fabrication of apatite/titanium functionally graded coating using supersonic free-jet PVD

Atsushi Yumoto, Takahisa Yamamoto, Ichiro Shiota, Naotake Niwa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hydroxyapatite (HAp) is very attractive in 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
Title of host publicationMaterials Science Forum
Pages187-192
Number of pages6
Volume631-632
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs - Sendai
Duration: 2008 Sep 222008 Sep 25

Publication series

NameMaterials Science Forum
Volume631-632
ISSN (Print)02555476

Other

Other10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs
CitySendai
Period08/9/2208/9/25

Fingerprint

Apatites
free jets
Apatite
Physical vapor deposition
apatites
Durapatite
Titanium
Hydroxyapatite
Composite coatings
titanium
coatings
Fabrication
Coatings
fabrication
gas flow
Flow of gases
Noble Gases
composite materials
chambers
Inert gases

Keywords

  • Biomaterial
  • Bone-like apatite
  • Nanoparticle
  • Simulated body fluid
  • Supersonic gas flow

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Yumoto, A., Yamamoto, T., Shiota, I., & Niwa, N. (2010). Fabrication of apatite/titanium functionally graded coating using supersonic free-jet PVD. In Materials Science Forum (Vol. 631-632, pp. 187-192). (Materials Science Forum; Vol. 631-632). https://doi.org/10.4028/www.scientific.net/MSF.631-632.187

Fabrication of apatite/titanium functionally graded coating using supersonic free-jet PVD. / Yumoto, Atsushi; Yamamoto, Takahisa; Shiota, Ichiro; Niwa, Naotake.

Materials Science Forum. Vol. 631-632 2010. p. 187-192 (Materials Science Forum; Vol. 631-632).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yumoto, A, Yamamoto, T, Shiota, I & Niwa, N 2010, Fabrication of apatite/titanium functionally graded coating using supersonic free-jet PVD. in Materials Science Forum. vol. 631-632, Materials Science Forum, vol. 631-632, pp. 187-192, 10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs, Sendai, 08/9/22. https://doi.org/10.4028/www.scientific.net/MSF.631-632.187
Yumoto A, Yamamoto T, Shiota I, Niwa N. Fabrication of apatite/titanium functionally graded coating using supersonic free-jet PVD. In Materials Science Forum. Vol. 631-632. 2010. p. 187-192. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.631-632.187
Yumoto, Atsushi ; Yamamoto, Takahisa ; Shiota, Ichiro ; Niwa, Naotake. / Fabrication of apatite/titanium functionally graded coating using supersonic free-jet PVD. Materials Science Forum. Vol. 631-632 2010. pp. 187-192 (Materials Science Forum).
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