Ion mixing of pulsed laser deposited hydroxylapatite (HA)

Terry Alford, S. W. Russell, Vincent Pizziconi, J. W. Mayer, T. E. Levine, M. Nastasi, C. M. Cotell, R. C Y Auyeung

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


The use of ion-beam techniques to enhance selected properties of bioactive materials, such as the adhesion of hydroxylapatite (HA) coatings on titanium-based substrates has been investigated. In this study, very thin HA films on titanium substrates were created by pulsed laser deposition techniques. Ion irradiations were carried out using 260-keV argon ions, with fluences of 0.25-50×10 15ions/cm 2, and at room temperature. Rutherford backscattering spectrometry was used to evaluate sample composition before and after irradiation. The amount of mixing was quantified by the mixing rate (the amount of atomic displacement due to an irradiation fluence). This pilot data indicates that mixing was evident after sufficient ion irradiation. The ramification of this preliminary study has provided a quantitative measure of ion mixing as a potential prosthetic biomaterial surface modification technique.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsDale C. Jacobson, David E. Luzzi, Tony F. Heinz, Masaya Iwaki
PublisherMaterials Research Society
Number of pages6
StatePublished - 1995
EventProceedings of the 1994 MRS Fall Meeting - Boston, MA, USA
Duration: Nov 28 1994Dec 2 1994


OtherProceedings of the 1994 MRS Fall Meeting
CityBoston, MA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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