Abstract
Plasma-sprayed ceramic coatings are being developed for many applications such as thermal barriers and corrosion protection. In plasma spraying, the ceramic powder is heated into semi-molten droplets for projection onto a target surface by a high velocity gas stream. This coating is then rapidly cooled to form a solid layer. By repeating this process for multiple layers, a coating thickness from micrometers to millimeters may be built up. Inherent to this process, plasma-sprayed coatings generally possess rough surfaces and a high degree of porosity.
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Xiang, D., Hsu, N.N., Blessing, G.V. (1997). Ultrasonic Evaluation of Rough and Porous Ceramic Coatings with a Dual-Element Large Aperture Lensless Line-Focus Transducer. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Review of Progress in Quantitative Nondestructive Evaluation, vol 16. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5947-4_204
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DOI: https://doi.org/10.1007/978-1-4615-5947-4_204
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