Microstructure of suspension plasma sprayed multilayer coatings of hydroxyapatite and titanium oxide

Tomaszek, R.; Pawłowski, Lech; Gengembre, L.; Laureyns, J.; Maguer, A. Le

doi:10.1016/j.surfcoat.2007.02.013

Cited by 61 publications

(32 citation statements)

References 13 publications

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“…This technique is known as Suspension Plasma Spraying (SPS) and differs significantly from conventional APS since the suspension is fragmented into droplets and the liquid phase vaporised before the solid feedstock is processed [24,25]. This novel technique has recently undergone an extensive development, leading to the deposition of nanostructured coatings with unique properties for solid oxide fuel cells (SOFC) functional layers [28,29], thermal barrier coatings [30,31], photocatalytic layers [32,33], wear resistant coatings [34] or bioactive layers [35].…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

Bannier

Vicent

Rayón

et al. 2014

Applied Surface Science

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Versión / Versió:Preprint were used as starting materials. The coatings microstructure and phase composition were fully characterised using FEG-SEM and XRD techniques. Nanoindentation technique was used to determine the coatings hardness and elastic modulus properties.Results have shown that the addition of titania to alumina SPS coatings causes different crystalline phases and a higher powder melting rate is reached. The higher melted material achieved, when titania is added leads to higher hardness and elastic modulus when the same spraying parameters are used.

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Section: Introductionmentioning

confidence: 99%

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

Bannier

Vicent

Rayón

et al. 2014

Applied Surface Science

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“…Lowdensity liquid has to penetrate the core of the jet in order for the heat treatment to result in a coating formation. Two major injection systems include atomization and continuous jet injection and are discussed elsewhere (Ref [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Advanced Microstructural Study of Suspension Plasma Sprayed Hydroxyapatite Coatings

et al. 2010

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Fine, home-synthesized, hydroxyapatite powder was formulated with water and alcohol to obtain a suspension used to plasma spray coatings onto a titanium substrate. The deposition process was optimized using statistical design of 2 n experiments with two variables: spray distance and electric power input to plasma. X-ray diffraction (XRD) was used to determine quantitatively the phase composition of obtained deposits. Raman microscopy and electron probe microanalysis (EPMA) enabled localization of the phases in different positions of the coating cross sections. Transmission electron microscopic (TEM) study associated with energy-dispersive x-ray spectroscopy (EDS) enabled visualization and analysis of a two-zone microstructure. One zone contained crystals of hydroxyapatite, tetracalcium phosphate, and a phase rich in calcium oxide. This zone included lamellas, usually observed in thermally sprayed coatings. The other zone contained fine hydroxyapatite grains that correspond to nanometric and submicrometric solids from the suspension that were agglomerated and sintered in the cold regions of plasma jet and on the substrate.

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“…Intensive HA particles heating leads to dehydration and decomposition of HA and fast cooling of crystal phases in the solid core at impact results in conservation of high temperature phases [12]. The fraction of phases in sprayed coatings is the most important factor that determines their biological behaviour, such as dissolution of the coating in vivo [13]. That is why optimisation of coating process is very important factor to reach the desired coating quality.…”

Section: Deposition Of Hydroxyapatite Coating By Plasma Sprayingmentioning

confidence: 99%

Plasma Sprayed Hydroxyapatite Coatings Modified With Silver Nanoparticles

Ignat'ev¹,

Rybak²,

Colonges³

et al. 2013

Acta Metall Slovaca

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Metallic silver, silver nanoparticles (AgNp) and nanocomposites based on silver are widely used in medicine, due to their antibacterial and antiseptic properties. The main goals of the present work were: (1) research of various types of liquids containing AgNp (including AgNp produced by biosynthesis technology using dessert plants (nopal, agave) extracts to reduce the silver); (2) research of sedimentation from liquids of AgNp on the surface of Hydroxyapatite (HA) implant coatings deposited by plasma spraying; (2) preliminary evaluation of antibacterial properties of HA coating modified with AgNp. The first test shows significant antibacterial activity of HA coatings containing AgNp produced by biosynthesis technology.

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Microstructure of suspension plasma sprayed multilayer coatings of hydroxyapatite and titanium oxide

Cited by 61 publications

References 13 publications

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

Advanced Microstructural Study of Suspension Plasma Sprayed Hydroxyapatite Coatings

Plasma Sprayed Hydroxyapatite Coatings Modified With Silver Nanoparticles

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