Plasma spraying
Alumina zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
... Atmospheric plasma spraying (APS) represents one of the most suitable techniques used to obtain TBCs as a consequence of the good mechanical and thermal performance of the coatings obtained as well as an ...
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Deposition of Al2O3 TiO2 Nanostructured Powders by Atmospheric Plasma Spraying
... by plasma spraying from agglomerated powders include alumina (Ref 17), alumina-titania (Ref 18, 19), cemented tungsten carbides (Ref 20, 21), or zirconia (Ref 22, ...
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Characterization of thermal barriers coatings of Y TZP/AL2O3/SiC composite obtained by suspension plasma spraying
... Bioactive coatings are used in the field of medicine as coatings for orthopaedic implants made of bio-inert materials such as stainless steel, chromium/cobalt or titanium alloys with the aim of conferring ...
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45S5 bioactive glass coatings by atmospheric plasma spraying obtained from feedstocks prepared by different routes
... a frit. The frit was milled using two different routes: dry milling followed by sieving to obtain glass particles, and wet milling followed by spray drying to obtain a powder comprising porous agglomerates. All ...
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Atmospheric plasma spraying coatings from alumina–titania feedstock comprising bimodal particle size distributions
... However, nanostructured coating (NC) showed somehow lower fracture toughness than that of conventional and submicron-nanometric ones. Such results are apparently in contradiction with the common hypothesis of a crack ...
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Adhesion assessment of bioactive coatings deposited by atmospheric plasma spraying
... Bioactive coatings are used in the field of medicine as coatings for orthopaedic implants made of bio-inert materials such as stainless steel, chromium/cobalt or titanium alloys with the aim of conferring ...
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Effect of fructose containing feedstocks on the microstructure of multicomponent coatings deposited by suspension plasma spraying
... of the reduction of surface tension of the liquid caused by fructose addition. Moreover, coatings obtained from feedstocks containing fructose were thinner and more porous owing to the pore forming effect of fructose. ...
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Effect of particle size on processing of bioactive glass powder for atmospheric plasma spraying
... the plasma torch as a consequence of the extremely high temperatures reached (higher than 10000 ...the plasma ensures the melting of any of the crystalline phases newly formed when heating the ...
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Effect of particle size distribution of suspension feedstock on the microstructure and mechanical properties of suspension plasma spraying YSZ coatings
... Figure 1 shows the evolution of zeta potential of nano- and submicron-sized YSZ powders without dispersant and with different contents of PAA. The isoelectric point (IEP) of these powders without additives occurs at 6.2 ...
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Aqueous suspension processing of multicomponent submicronic Y TZP/Al2O3/SiC particles for suspension plasma spraying
... Nowadays, turbines need to operate at higher gas temperatures to improve the engine efficiency; nevertheless these new conditions produce an additional thermal stress and increase the probability of mechanical failure, ...
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Characterization of nanostructured ceramic and cermet coatings deposited by plasma spraying
... kg/m 3 and mean particle size > 20 µm can be directly used for plasma spray coating. Once the reconstituted nanometric powder has been obtained, the process parameters need to be adapted to the characteristics ...
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Bioactive glass suspensions preparation for suspension plasma spraying
... the plasma plume, which melt any possible crystalline phase, as well as to the fast cooling of the splats when impacting on the substrate preventing coating ...
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Bioactive glass coatings by suspension plasma spraying from glycoletherbased solvent feedstock
... The literature reports many papers about optimisation of plasma spray conditions to obtain BG coatings by APS. Most of these papers also include the characterisation of the resulting coatings [9–14]. However, very ...
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Effect of the initial particle size distribution on the properties of suspension plasma sprayed Al2O3 TiO2 coatings
... the spraying distance during plasma spraying deposition will also be taken into account due to its great effect on the amount of partially melted areas in the ...
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Neural plasma
... How could the model’s calibration be computed more effectively and efficiently? Neural plasma determines the miscalibration as a function of the frequency of truth in the cells. However, the partitioning into ...
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Magnetic self-field effects on current collection by an ionospheric bare tether
... Space Plasma Physics: Charged particle motion and acceleration; 7815 Space Plasma Physics: Electrostatic structures; 7853 Space Plasma Physics: Spacecraft/atmosphere interactions; 7855 Space ...
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El plasma en la atmósfera
... ionosfera podemos, como se sefiala en las referen- cias 3 y 12, por una parte, linealizar las ecuacio- nes al considerar que las perturbaciones son pe- quefias; por otra parte, despreciar la agitacion ter- mica, pues en ...
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Plasma simulation in space propulsion : the helicon plasma thruster
... Most plasma data was inferred from spectroscopy measurements. Plasma density increased with power up to 2 · 10 18 m − 3 , which probably means incomplete ...topology, plasma density was an order of ...
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El uso de los factores de crecimiento y plasma enriquecido en plaquetas
... el plasma sanguíneo se encuentran los factores de crecimiento plaquetario, proteínas con un papel clave dentro del proceso de reparación y regeneración de los ...
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El Papel de los Minerales Traza en la Salud de los Peces
... Pocos estudios se han dirigido para determinar la biodisponibilidad de selenio en varios compuestos conteniendo selenio para los peces. El selenio de selenita de sodio o selenometionina a los niveles de 1 o 2 mg/kg de ...
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