Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/41735

Title

Characterization and mechanical properties of flame sprayed hydroxyapatite/polymer composite coatings

Author(s)

Sun, Limin;  Berndt, Christopher C.;  Gross, Karlis A.

Abstract

Hydroxyapatite/polymer composite coatings of different volume ratios were produced using a Plastic Flame Spray (PFS) system. The intent of this processing is to obtain a coating with an optimal combination of biological and mechanical properties of these two materials for skeletal implants. The composite coatings were produced with a mechanical blend of EMMA and hydroxyapatite powder from a fluidized bed powder feeder. Characterization was conducted by scanning electron microscopy on the surface morphology, polished cross-sections and fracture surface morphology of the coatings. The bioactivity of the coatings was evaluated with a calcium ion meter, and the stress-strain behavior was investigated by tensile testing. The biological and mechanical properties were found to be related to the volume and the distribution of the hydroxyapatite in the polymer matrix.

Publication type

Conference paper

Source

Proceedings of the 2nd International Thermal Spray Conference, 'Thermal spray 2001: new surfaces for a new millennium', Singapore, 28-30 May 2001 / Christopher C. Berndt, Khiam A. Khor and Erich F. Lugscheider (eds.), pp. 321-326

Publication year

2001

Keyword(s)

Bone;  Flame spraying;  Fluidization;  High density polyethylenes;  Hydroxyapatite;  PFS;  Plastic flame spray;  Polymer composite coatings;  Scanning electron microscopy;  Sprayed coatings;  Surgical implantsMorphology

Publisher

ASM International

ISBN

9780871707376, 0871707373

Peer reviewed