Effect of Shroud in Plasma Spraying on Chemical Composition and Thickness of Titanium Coatings

Zhou, Hong; Peng, Cheng

doi:10.3390/coatings11040446

Cited by 2 publications

(3 citation statements)

References 30 publications

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“…Among the different ways to improve the surface properties, some of the most commonly used methods involve altering the alloying chemical composition, heat treatments chemical vapor deposition (CVD), physical vapor deposition (PVD), ion implantation, solgel coating, anodic oxidation, laser treatment, pack cementation, etc., [22][23][24][25][26][27][28][29][30][31][32][33]. Plasma spray technology has been used to apply coatings on Ti-base alloys to improve their corrosion resistance [34,35]. The use of ions implantation such as oxygen or nitrogen by plasma has been used to improve both wear and corrosion resistance of metals.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

et al. 2021

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A Ti6Al4V alloy was plasma-oxidized at 600 °C during 1, 2, 3, 5 and 8 h and corroded in an artificial saliva solution. Electrochemical evaluation was performed by using potentiodynamic polarization curves, linear polarization resistance (LPR), and electrochemical impedance spectroscopy (EIS) measurements during 100 h. Corroded specimens were characterized by using Raman spectroscopy and scanning electronic microscopy (SEM). All tests indicated that the highest corrosion resistance was obtained for specimen oxidized during 3 h since the noblest free corrosion potential, lowest passive and corrosion current density values, as well as the highest polarization resistance values were obtained under these circumstances. EIS measurements indicated that the highest impedance and phase angle values obtained for this specimen exhibited a high capacitive behavior typical of a very compact passive film.

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Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

et al. 2021

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“…Plasma spray process has been used for several decades to deposit various coatings for different purposes such as thermal barrier, wear resistance and biocompatibility so on. Shrouded plasma spray modifies the spray torches by using a shroud attachment at the end of plasma gun [11][12]. The shroud could shield the plasma flame physically from the ambient air.…”

Section: Introductionmentioning

confidence: 99%

“…The plasma spray parameters are presented in table 2. A shroud attachment has been used for the plasma spray process, as shown in figure 2[12].…”

mentioning

confidence: 99%

Fabrication of Titanium Coatings for Medical Device Applications

Zhou

Peng

2022

MSF

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Titanium is widely used for medical purposes. It related to bone repair because of its favorable mechanical properties and biocompatible ability to osseointegrate in host bone tissue. A good and lasting connection of the implant with the bone tissue is possible when there are sufficient conditions for the bone to grow into the pores of the material, therefore the use of a porous titanium coating may be helpful in solving this problem. In this paper, shrouded plasma spray is used to produce low oxide containing titanium coatings and lower the cost as titanium is a very reactive metal at high temperatures. A solid conical shroud was designed for plasma spray. The titanium coatings were assessed by scanning electron microscopy and energy dispersive X-ray spectroscopy. An analysis in microstructure had been carried out. The results showed that the shroud attachment played an important role in protecting the titanium particles in flight during the process of plasma spraying. An enhanced microstructure with moderate porosity in the titanium coatings plasma sprayed with the shroud was observed. The reduction in air entrainment with the shroud resulted in a good heating of the particles. The plasma-sprayed titanium coating was mainly composed of α-Ti with a low quantity of TiO.

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Effect of Shroud in Plasma Spraying on Chemical Composition and Thickness of Titanium Coatings

Cited by 2 publications

References 30 publications

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

Fabrication of Titanium Coatings for Medical Device Applications

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