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ITSC2023, Thermal Spray 2023: Proceedings from the International Thermal Spray Conference, 1-8, May 22–25, 2023,
... Abstract The influence of air plasma sprayed alumina coating geometry, microstructure, interface roughness on its delamination and crack propagation resistance during low temperature thermal cycling, i.e. thermal mismatch stress, is investigated both numerically and experimentally. Previous...
Proceedings Papers

ITSC2023, Thermal Spray 2023: Proceedings from the International Thermal Spray Conference, 46-53, May 22–25, 2023,
... thermal spray techniques such as Air Plasma Spray (APS), which can result in high amounts of oxidation within the coating. The main purpose of this study is to critically evaluate lower temperature deposition techniques such as High Velocity Oxygen Fuel (HVOF). More specifically, commercially available Cu...
Proceedings Papers

ITSC2023, Thermal Spray 2023: Proceedings from the International Thermal Spray Conference, 509-513, May 22–25, 2023,
... superalloys using an air plasma spray (APS), high-velocity oxygen-fuel (HVOF) and cold spray (CS) processes. Different spraying parameters in the HVOF and CS processes were used to make different coating microstructures, and the coating prepared by the APS technique served as a control for the HVOF and CS...
Proceedings Papers

ITSC2023, Thermal Spray 2023: Proceedings from the International Thermal Spray Conference, 689-694, May 22–25, 2023,
... as the intermediate layer by air plasma spraying on graphite substrate was investigated to find a better intermediate layer. Their performance was explored as a bonding layer in a protective alumina-YSZ ceramic topcoat. X-ray diffraction and scanning electron microscope were used to observe the cross-section...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 9-17, May 24–28, 2021,
... by conventional air plasma spray (APS) processes. Nonetheless, the microstructure of the YSZ topcoat is strongly influenced by the properties of the metallic bondcoat. In this work, direct laser interference patterning (DLIP) was applied to texture the surface topography of Ni-alloy based plasma sprayed bondcoat...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 66-74, May 24–28, 2021,
... Abstract As a critical technology, thermal barrier coatings (TBC) have been used in both aero engines and industrial gas turbines for a few decades, however, the most commonly used MCrAlY bond coats which control air plasma sprayed (APS) TBC lifetime are still deposited by the powders developed...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 119-124, May 26–29, 2019,
... Abstract The present work demonstrates the possibilities of atmospheric air plasma spraying. It presents various approaches to the development and optimization of spraying modes using diagnostic equipment and provides examples of industrial approbation of the technology. alumina coatings...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 143-150, May 26–29, 2019,
... bonding between spray passes. air plasma spraying gun scanning pattern hot corrosion testing interfacial fracture toughness scanning pattern yttria-stabilized zirconia ITSC 2019 Proceedings of the International Thermal Spray Conference May 26 29, 2019, Yokohama, Japan F. Azarmi, Y. Lau, J...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 332-339, May 26–29, 2019,
... Abstract Thermal barrier coatings are generally produced one of two ways, depending on the thermomechanical loading expected. This study assesses an alternative approach in which the output of an air plasma torch is directed through two chambers connected by an expansion nozzle. In the first...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 695-700, May 26–29, 2019,
... transfer properties that can be achieved with air plasma sprayed magnesium zirconate powders. The properties are assessed on an instrumented mold using the inverse technique for different coating compositions. air plasma spraying alumina-titania powder aluminum casting ceramic coating magnesium...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 755-760, May 26–29, 2019,
..., NiCrAlY powders with a particle size range of 30-45 μm were sprayed by conventional air plasma and a new laser hybrid plasma spraying technique. The spraying parameters are presented along with test results, observations, and conclusions. The coatings produced by laser hybrid plasma spraying had...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 761-767, May 26–29, 2019,
... alloy by air plasma spraying. Dovetail structures with different geometries were produced and their effectiveness is compared. The finish-machined surfaces of the FeCrNi coatings were examined and characterized with respect to feed marks, cracks, open pores, pull outs, and residual stresses. It is shown...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 937-942, May 26–29, 2019,
... Abstract The aim of this study is to evaluate the effect of electromechanical treatment on the structure and wear behavior of plasma-sprayed nickel coatings. The coatings were air plasma sprayed on low carbon steel substrates, then electromechanically treated using different values of current...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 35-41, May 7–10, 2018,
... Abstract In this study, two types of thermal barrier coatings (TBC); duplex and functionally graded coatings were deposited on superalloy Nimonic 263 substrates using air plasma spray process. The duplex coating consists of YSZ top coat and NiCrAlY bond coat. The functionally graded coating...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 496-500, May 7–10, 2018,
... Abstract Thermally sprayed Cr 2 O 3 coatings have been shown to provide excellent protection against wear in many engineering applications. These coatings are traditionally applied using air plasma spray technology; however, suspension high velocity oxy fuel thermal spraying (SHVOF...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 655-659, May 7–10, 2018,
... Abstract Ni-Co-Al-Li oxide (NCAL) is an important catalyst material for low-temperature solid oxide fuel cells (LTSOFCs). In this paper, air-plasma spray (APS) coating technology was applied to make NCAL layers on porous steel supports for the LTSOFC. The results showed that NCAL was well...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 660-664, May 7–10, 2018,
... and coating quality and with that improve the electrochemical performance of the coatings. Air plasma spraying with TriplexPro gun was performed using NiAlMo powders. Plasma parameters were varied and particle inflight velocity and temperature was measured by Accuraspray. Coatings were developed...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 705-708, May 7–10, 2018,
... systems operating worldwide in aerospace facilities. This paper outlines the very unique capabilities of the feeder in the field of cold spray and finely-dispersed-particle air plasma spray (FAPS). cold spraying finely-dispersed-air plasma spraying powder feeder ITSC 2018 Proceedings...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 825-829, May 7–10, 2018,
... temperatures, the oxidation resistance of TBCs is also important which would affect the cyclic life of the coatings. In this paper, two YSZ materials were used to make FG-TBCs and conventional duplex TBCs by applying air-plasma spray (APS) technique. The coated samples were thermal cycled with 24-hours heating...
Proceedings Papers

ITSC 2017, Thermal Spray 2017: Proceedings from the International Thermal Spray Conference, 291-295, June 7–9, 2017,
... Abstract Air plasma spraying is a variation of thermal spraying that is used, among others, for the production of thermal barrier and wear resistant coatings. High plasma temperatures enable the processing of ceramic powder particles which have a high melting point and cannot be processed...