Influence of Ce3+/Ce4+ ratio on phase stability and residual stress field in ceria-yttria stabilized zirconia plasma-sprayed coatings

1992 ◽  
Vol 27 (20) ◽  
pp. 5591-5596 ◽  
Author(s):  
R. Dal Maschio ◽  
P. Scardi ◽  
L. Lutterotti ◽  
G. M. Ingo
Keyword(s):  
Residual Stress ◽  
Stress Field ◽  
Phase Stability ◽  
Yttria Stabilized Zirconia ◽  
Stabilized Zirconia ◽  
Residual Stress Field ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings

Influence of RF Plasma Jet Surface Treatment on Wetting Behavior of Yttria Stabilized Zirconia SPS Coatings

2020 ◽  
Vol 405 ◽  
pp. 423-429
Author(s):  
Pavel Komarov ◽  
David Jech ◽  
Ladislav Čelko ◽  
Barbora Pijáková ◽  
Da Peng Zhou ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Plasma Jet ◽  
Yttria Stabilized Zirconia ◽  
Rf Plasma ◽  
Stabilized Zirconia ◽  
Water Contact ◽  
Wetting Behavior ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings

According to the value of water contact angle (WCA), the surfaces can be roughly defined as hydrophilic (with WCA less than 90°) or as hydrophobic (with WCA higher than 90°). Water wetting behavior plays important role and surfaces with special wettability (hydrophobic-superhydrophobic; hydrophilic-superhydrophilic) can be used both in the daily life (solar cells, smartphones, car windows, etc.) and in the industry (corrosion resistance, self-cleaning, anti-icing properties, etc.). Nowadays, the development of hydrophobic surface treatment that may be applied in the industry is very interesting topic. Therefore, it was decided to estimate the influence of radiofrequency (RF) plasma jet in atmosphere on wetting behavior of ceramic plasma sprayed coatings. As the initial material for surface treatment, yttria stabilized zirconia suspension plasma sprayed coatings were used. The influence of RF plasma jet on suspension plasma sprayed coatings was estimated on both hydrophilic and hydrophobic surfaces, and resulted water contact angle and free surface energy of modified samples were measured by sessile droplet method. Microstructure, phase composition and topography investigation were carried out by means of light microscopy, X-ray diffraction techniques and non-contact profilometry.

Residual Stress Measurement of Plasma Sprayed Coating Layers in ZrO2

2007 ◽  
Vol 544-545 ◽  
pp. 451-454
Author(s):  
Soo Wohn Lee ◽  
Jia Zhang ◽  
Huang Chen ◽  
J. S. Song ◽  
Jae Kyo Seo ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Measurement ◽  
Diffraction Method ◽  
Spray Coating ◽  
X Ray Diffraction ◽  
Plasma Sprayed Coatings ◽  
Coating Layers ◽  
Sprayed Coating ◽  
Plasma Sprayed ◽  
Sprayed Coatings

Plasma sprayed coatings have been widely applied in modifying surface properties of metal components. It is also useful to prevent various types of wear, corrosion, erosion and thermal. But the residual stress is still an important problem which can effect the properties of sprayed coating. So it’s necessary to find out the reason of residual stress and the relationship between plasma sprayed condition and residual stress. Plasma spray coating layers with conventional ZrO2 powder was examined to calculate residual stress by X-ray diffraction method with various coating thickness.

scholarly journals Residual Stress Measurement of Plasma-Sprayed Coatings

2003 ◽  
Vol 46 (4) ◽  
pp. 590-597 ◽  
Author(s):  
Hiroyuki WAKI ◽  
Keiji OGURA ◽  
Izuru NISHIKAWA ◽  
Yoshihiko KASHIHARA
Keyword(s):  
Residual Stress ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings
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