Characteristic of microstructure and high-temperature properties of sputtered coatings

GAO Yang; CHEN Meng-cheng; LI Jian-ping; RU Ji-lai; WANG Ren-zhi

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Journal of Aeronautical Materials ›› 2000, Vol. 20 ›› Issue (3) : 61-66.

Characteristic of microstructure and high-temperature properties of sputtered coatings

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Abstract

kW RF magnetron sputtering unit gained zirconia ceramic coatings on hollow turbine blades and vanes, which had been deposited NiCrAlY bond coat by cathodic arc deposition.The microstructure and phase composition were investigated using electron probe microanalysis (EPMA) and X-ray diffraction(XRD).NiCrAlY coating surface was treated by shot peening, the effects of heat treatment on the residual stress are presented. No degradation occurred to RF ceramic coatings after 100 hours high temperature oxidation at 1100℃ and 500 thermal cycles at 1150℃ for 2 min, air cooling.

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magnetron sputtering / thermal barrier coat / shot peening / thermal shock resist

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GAO Yang, CHEN Meng-cheng, LI Jian-ping, RU Ji-lai, WANG Ren-zhi. Characteristic of microstructure and high-temperature properties of sputtered coatings[J]. Journal of Aeronautical Materials, 2000, 20(3): 61-66

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