@inproceedings{1dd6a38467014e31b5ab5607219ce33a,
title = "Fabrication of apatite/titanium functionally graded coating using supersonic free-jet PVD",
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.",
keywords = "Biomaterial, Bone-like apatite, Nanoparticle, Simulated body fluid, Supersonic gas flow",
author = "Atsushi Yumoto and Takahisa Yamamoto and Ichiro Shiota and Naotake Niwa",
year = "2010",
month = feb
day = "9",
doi = "10.4028/www.scientific.net/MSF.631-632.187",
language = "English",
isbn = "0878493077",
series = "Materials Science Forum",
pages = "187--192",
booktitle = "Multiscale, Multifunctional and Functionally Graded Materials",
note = "10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs ; Conference date: 22-09-2008 Through 25-09-2008",
}