Bioactive glass coatings deposited via suspension plasma spraying were studied to improve the adhesion between orthopaedic implants and bone. Fine powders of a bioactive glass, named BG_Ca, having composition (in wt.%): 4.7 Na2O, 42.3 CaO, 6.1 P2O5, 46.9 SiO2, were produced and dispersed in ethanol to form a suspension used as a feedstock. Various sets of spray parameters were applied in order to define the influence of the deposition process on the final coating properties. Consequently, the coatings were characterized in as-sprayed state and after soaking in a simulated body fluid (SBF) for different periods ranging from 1 to 14 days. The microstructural investigations were carried out using environmental scanning electron microscope (ESEM) and X-ray diffraction (XRD). The coatings’ adhesion to the substrate was evaluated by means of scratch tests. Finally, hardness and elastic modulus were determined by means of depth-sensing indentation methods.

Suspension plasma sprayed bioactive glass coatings: effects of processing on microstructure, mechanical properties and in-vitro behaviour / Cattini, Andrea; L., Łatka; Bellucci, Devis; Bolelli, Giovanni; Sola, Antonella; Lusvarghi, Luca; L., Pawłowski; Cannillo, Valeria. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 220:(2013), pp. 52-59. [10.1016/j.surfcoat.2012.10.076]

Suspension plasma sprayed bioactive glass coatings: effects of processing on microstructure, mechanical properties and in-vitro behaviour

CATTINI, ANDREA;BELLUCCI, Devis;BOLELLI, Giovanni;SOLA, Antonella;LUSVARGHI, Luca;CANNILLO, Valeria
2013-01-01

Abstract

Bioactive glass coatings deposited via suspension plasma spraying were studied to improve the adhesion between orthopaedic implants and bone. Fine powders of a bioactive glass, named BG_Ca, having composition (in wt.%): 4.7 Na2O, 42.3 CaO, 6.1 P2O5, 46.9 SiO2, were produced and dispersed in ethanol to form a suspension used as a feedstock. Various sets of spray parameters were applied in order to define the influence of the deposition process on the final coating properties. Consequently, the coatings were characterized in as-sprayed state and after soaking in a simulated body fluid (SBF) for different periods ranging from 1 to 14 days. The microstructural investigations were carried out using environmental scanning electron microscope (ESEM) and X-ray diffraction (XRD). The coatings’ adhesion to the substrate was evaluated by means of scratch tests. Finally, hardness and elastic modulus were determined by means of depth-sensing indentation methods.
220
52
59
Suspension plasma sprayed bioactive glass coatings: effects of processing on microstructure, mechanical properties and in-vitro behaviour / Cattini, Andrea; L., Łatka; Bellucci, Devis; Bolelli, Giovanni; Sola, Antonella; Lusvarghi, Luca; L., Pawłowski; Cannillo, Valeria. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 220:(2013), pp. 52-59. [10.1016/j.surfcoat.2012.10.076]
Cattini, Andrea; L., Łatka; Bellucci, Devis; Bolelli, Giovanni; Sola, Antonella; Lusvarghi, Luca; L., Pawłowski; Cannillo, Valeria
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/861510
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