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The suspension plasma spraying of bioceramics by induction plasma

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Abstract

Suspension plasma spraying (SPS) is a single-step process for the preparation of thick coatings or for the production of powder using radio-frequency inductively coupled thermal plasma technology. SPS is based on a liquid suspension of very fine (<10 μm) or even ultrafine (,100 nm) powders axially fed into the radio-frequency plasma flame through an atomization probe. This article reports the results of the preparation by SPS of thick coatings and spherical powders of bioceramics, namely, hydroxyapatite. Characterization of the hydroxyapatite coatings and atomized powders are reported. Process variables are studied as a function of phase structure and crystallinity of the obtained hydroxyapatite material.

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Authors
  1. E. Bouyer
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  2. F. Gitzhofer
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  3. M. I. Boulos
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Additional information

E. Bouyer earned his M.Sc. in metallurgy from the University of Paris XI/Orsay in France in 1991. He is currently a Ph.D. candidate in chemical engineering at the Université de Sherbrooke.

F. Gitzhofer earned his Ph.D. in materials science from the University of Limoges in France in 1988. He is currently an associate professor and member of the Plasma Technology Research Centre in the Department of Chemical Engineering at the Université de Sherbrooke.

M.I. Boulos earned his Ph.D. in chemical engineering at the University of Waterloo in Canada in 1972. He is currently a full professor and director of the Plasma Technology Research Centre in the Department of Chemical Engineering at the Université de Sherbrooke.

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Bouyer, E., Gitzhofer, F. & Boulos, M.I. The suspension plasma spraying of bioceramics by induction plasma. JOM 49, 58–62 (1997). https://doi.org/10.1007/BF02915483

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