Ion mixing of pulsed laser deposited hydroxylapatite (HA)
- Arizona State Univ., Tempe, AZ (United States)
- Cornell Univ., Ithaca, NY (United States). Dept. of Material Science and Engineering
- Los Alamos National Lab., NM (United States)
- Naval Research Lab., Washington, DC (United States)
Hydroxylapatite (HA) is a calcium-phosphate-bioceramic material which has drawn much attention due to its excellent biocompatibility and tissue bioactivity properties. 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 {times} 10{sup 15} ions/cm{sup 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.
- OSTI ID:
- 375916
- Report Number(s):
- CONF-941144-; ISBN 1-55899-255-3; TRN: IM9642%%4
- Resource Relation:
- Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 9 Dec 1994; Other Information: PBD: 1995; Related Information: Is Part Of Beam-solid interactions for materials synthesis and characterization; Jacobson, D.C. [ed.] [AT and T Bell Labs., Murray Hill, NJ (United States)]; Luzzi, D.E. [ed.] [Univ. of Pennsylvania, Philadelphia, PA (United States)]; Heinz, T.F. [ed.] [Columbia Univ., New York, NY (United States)]; Iwaki, Masaya [ed.] [Inst. of Physical and Chemical Research, Wako, Saitama (Japan)]; PB: 763 p.; Materials Research Society symposium proceedings, Volume 354
- Country of Publication:
- United States
- Language:
- English
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