Abstract

Abstract In this work, ZrB2-MoSi2 (ZM) composite coatings are fabricated using two plasma spraying techniques: VPS and APS. Phase composition and coating microstructure were assessed and microstructural changes at 1500 °C were investigated along with corresponding oxidation behaviors. The results show that the VPS composite coatings have lower oxide content, surface roughness, and porosity and much higher oxidation resistance than coatings produced by atmospheric plasma spraying. Possible reasons for the differences observed are presented.

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