The invention relates to the technical field of thermal spraying, specifically relates to a method for preparing a Y2O3 ceramic coating by supersonic flame spraying technology. The method comprises the following steps: (1) selecting Y2O3 powder with a purity greater than 99.9% and performing drying treatment; (2) pretreating a surface of a substrate to be sprayed, (3) spraying the surface of the substrate by supersonic flame spraying technology to prepare the Y2O3 ceramic coating. The Y2O3 coating prepared by the invention has a compact structure, a low porosity between 0.5% and 2%, and a bonding strength of the coating (between the coating and the substrate) ranging from 60 MPa to 80 MPa.
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机译：一种超声喷涂技术制备Y 2 O 3 陶瓷涂层的方法，涉及热喷涂技术领域。该方法包括以下步骤：（1）选择纯度大于99.9％的Y 2 O 3 粉末并进行干燥处理; （2）对待喷涂基材表面进行预处理，（3）采用超音速火焰喷涂技术喷涂基材表面，制备出Y 2 O 3 陶瓷涂层。本发明制备的Y 2 O 3 涂层结构致密，孔隙率低至0.5％〜2％，涂层的结合强度（涂层之间）和基板）的范围从60 MPa至80 MPa。
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