The Formed Mechanism of Pores in Plasma Sprayed Nanostructured Al2O3/TiO2 Coatings

Wei Qin Wu; Zhen Yi Wei

doi:10.4028/www.scientific.net/AMM.423-426.139

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426The Formed Mechanism of Pores in Plasma Sprayed...

The Formed Mechanism of Pores in Plasma Sprayed Nanostructured Al₂O₃/TiO₂ Coatings

Abstract:

Pores are common defects in the coating formed via plasma spraying. In order to investigate the formed mechanism of pores in plasma sprayed nanostructured Al₂O₃-TiO₂ coatings, the microstructure of the feed stock, splat and coating were characterized by means of scanning electron microscopy (SEM). The coating shows a typical lamellar morphology, which contains fully melted (FM) zone and partly melted (PM) zone.The pores in different places of the coating were generated from different sources. The shapes and the size of the pores are also different. Keywords: plasma spray, coating, pores, formed mechanism

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Periodical:

Applied Mechanics and Materials (Volumes 423-426)

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139-144

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.423-426.139

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Online since:

September 2013

Authors:

Wei Qin Wu, Zhen Yi Wei

Keywords:

Coating, Formed Mechanism, Plasma Spray, Pores

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