Effect of Plasma Spraying Parameters on Anisotropic Feature of the Mechanical Property of Plasma Sprayed Al2O3 Coating

Shinichiro Adachi; Kazuhiro Nakata

doi:10.4028/www.scientific.net/MSF.580-582.471

Paper Titles

Effects of Process Parameters on Surface Characteristics in Cutting of Cold Rolled Steel Sheets Using a High-Power CW Nd: YAG Laser
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UV Laser Bonding of Optical Devices on Polymers
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Equivalent Pulsed GMA Power to 2 kW CW Nd:YAG Laser Power in Welding of Carbon Steel and Al Alloy
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Effect of Particle Size Distribution of the Feedstock Powder on the Microstructure of Bulk Metallic Glass Sprayed Coating by HVOF on Aluminum Alloy Substrate
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Effect of Plasma Spraying Parameters on Anisotropic Feature of the Mechanical Property of Plasma Sprayed Al₂O₃ Coating
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Numerical Analysis of Distortion of a Laser Welded Thin Metal Structure
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Fiber Laser Welding of Noncombustible Magnesium Alloy
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Welding Characteristic of Super Alloys for Nd:YAG Laser
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A Comparison of Weld Properties with or without Filler Wire on Laser Welding of Magnesium Alloy for Car Industry
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HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Effect of Plasma Spraying Parameters on...

Effect of Plasma Spraying Parameters on Anisotropic Feature of the Mechanical Property of Plasma Sprayed Al₂O₃ Coating

Abstract:

The effects of the plasma spraying parameters on the strength of an Al2O3 coating were investigated by changing the input electrical power to the plasma torch, the spray distance and the Al2O3 powder size as the spraying parameters. The anisotropic feature of the coating strength is also discussed. The strength of the Al2O3 coating in a direction perpendicular to a substrate plane was dominated by the layered structure of Al2O3 splats, and was affected by all the parameters. The strength of the coating in a direction parallel to the substrate plane was not affected by the input electrical power. The strength of the former was lower than that of the latter, in the coating containing many cracks. The anisotropy of the coating strength would be caused by the cracks propagating along the lines of the laminated layer.