Results 221 to 230 of about 15,934 (272)

Atmospheric plasma sprayed SnO2 coating for ethanol detection

Journal of Alloys and Compounds, 2018
Abstract SnO2 coatings were deposited on alumina substrates using an atmospheric plasma spray. The coating morphology and phase structure were characterized by scanning electron microscopy and X-ray diffraction. Two different coatings were fabricated using nitrogen as a plasma forming gas with and without hydrogen.
V. Ambardekar, P.P. Bandyopadhyay, S.B. Majumder   +2 more
openaire   +1 more source

Aging of atmospherically plasma sprayed chromium evaporation barriers

Surface and Coatings Technology, 2016
Abstract Chromium evaporation barriers are frequently used in solid oxide fuel cells to protect the porous cathode from chromium poisoning. Volatile chromium species are generated at the operation temperature of about 600–900 °C in a humid atmosphere for chromia scale forming steels as interconnect materials.
R. Vaßen, N. Grünwald, D. Marcano, N.H. Menzler, R. Mücke, D. Sebold, Y.J. Sohn, O. Guillon   +7 more
openaire   +1 more source

Nanostructured zirconia coating prepared by atmospheric plasma spraying

Surface and Coatings Technology, 2002
Abstract In this paper, a nanostructured zirconia coating fabricated by atmospheric plasma spraying (APS) is described. The microstructure and phase composition of the coating was characterized with SEM, TEM, XRD and Raman Spectroscopy. In addition, the bonding strength between the nanostructured Zirconia coating and stainless steel substrate has ...
H. Chen, C.X. Ding
openaire   +1 more source

Effects of Plume Quenching on Controlled Atmosphere Plasma Sprayed Metals

International Thermal Spray Conference, 2023
Abstract Thermal spray processes benefit from workpiece cooling to prevent overheating of the substrate and to retain metallurgical properties (e.g., temper). Cold-gas “plume quenching” is a plume-targeting cooling technique, where an argon curtain is directed laterally above the substrate surface to re-direct high temperature gases ...
Emma Peleg, Andrew Vackel
openaire   +1 more source

Melting Refining Mechanisms in Supersonic Atmospheric Plasma Spraying

Plasma Chemistry and Plasma Processing, 2012
In recent years, Yttria-stabilized zirconia based thermal barrier coatings (TBCs) are deposited by newly-developed high-efficiency supersonic atmospheric plasma spraying (SAPS) technology. The final microstructure of the plasma-sprayed coatings is strongly dependent on the size distribution of spray particles.
Wei Tao Zhao, Jiu Hui Wu, Yu Bai, Zhi Hai Han   +3 more
openaire   +1 more source

Atmospheric Plasma-Sprayed Hydroxyapatite Coatings with (002) Texture

Journal of Thermal Spray Technology, 2018
Hydroxyapatite (HA) coatings are being widely used in biomedical applications owing to their excellent biocompatibility and osteoconductivity. Recent studies have demonstrated that the crystallographic texture plays an important role in improving the chemical stability and mechanical properties of HA coatings. In this study, optimized APS parameter was
Xiao-mei Liu, Ding-yong He, Zheng Zhou, Guo-hong Wang, Zeng-jie Wang, Xu Wu, Zhen Tan   +6 more
openaire   +1 more source

Atmospheric pressure plasma jet for liquid spray treatment

Journal of Physics D: Applied Physics, 2016
Atmospheric pressure plasma jets have been intensively studied in recent years due to growing interest in their use for biomedical applications and surface treatments. Either surfaces can be treated by a plasma jet afterglow for cleaning or activation or a material can be deposited by a reactive gas component activated by plasma.
S Mitić, J Philipps, D Hofmann
openaire   +1 more source

Integrated Simulation of the Atmospheric Plasma Spraying Process

International Thermal Spray Conference, 1998
Abstract The main purpose of this work is the development of mathematical and computer models for the integrated simulation of all stages of the atmospheric plasma spraying process (APS) with temperature dependent thermophysical and mechanical properties of the used materials and gases and experimental verification of the simulated ...
S. Kundas, A. Kuzmenkov, E. Lugscheider, U. Eritt   +3 more
openaire   +1 more source

Development of YBCO coatings by atmospheric plasma spraying

Journal of the European Ceramic Society, 2000
Abstract Superconducting Y–Ba–Cu–O thick films were produced by the atmospheric plasma spraying method. The effect of processing parameters (powder characteristics, spraying parameters) on the coatings properties was studied. X-ray diffraction analysis, SEM studies combined with EDS microanalysis and scratch test experiments were carried out in order
Elias Georgiopoulos, Athena Tsetsekou
openaire   +1 more source

Densification of Atmospheric Plasma Sprayed Wear Resistant Coatings

International Thermal Spray Conference, 2009
Abstract Thermal spray coatings produced from hard materials show good potential for extending the service life of sheet metal forming tools. However, post-process methods currently used to improve coating surface quality are slow and expensive, especially on complex surfaces.
W. Tillmann, E. Vogli, B. Krebs, A.E. Tekkaya, A. Brosius, V. Franzen   +5 more
openaire   +1 more source