A simple, scalable and economical method was proposed to obtain ceramic-organic composite coating with excellent comprehensive properties include hardness, toughness, elastic recovery, lamellar interfacial bonding and anti-cavitation erosion: introducing epoxy resin into the pores and micro-cracks of plasma sprayed ceramic coating. The results indicate that the epoxy resin was successfully penetrated into the whole ceramic coating and filled almost all defects by vacuum impregnation, which greatly enhanced its compactness and mechanical properties. The bonding strength between top coating and metal interlayer significantly increased from 17.3 MPa to 53.0 MPa, and the hardness (H) of top coating greatly increased from 11.07 GPa to 23.57 GPa. Besides, the value of H³/E² also increased from 0.06 GPa to 0.15 GPa, meaning the toughness of ceramic coating had been obviously improved. The pure ceramic coating had been punctured only after 4 h of cavitation test. However, the resin with high elasticity and toughness can effectively absorb impact energy, prevent cracks propagation and delay splats spallation during the cavitation erosion process. The novel composite coating displayed far better cavitation erosion resistance than pure ceramic coating, and it was still intact after 10 h of test.

提出了一种简单，可扩展且经济的方法来获得具有优异综合性能（包括硬度，韧性，弹性回复，层状界面结合和抗气蚀）的陶瓷-有机复合涂层：将环氧树脂引入等离子喷涂的孔和微裂纹中陶瓷涂料。结果表明，环氧树脂通过真空浸渍成功渗入整个陶瓷涂层，并填充了几乎所有缺陷，极大地提高了其致密性和机械性能。顶涂层与金属中间层之间的结合强度从17.3 MPa显着增加到53.0 MPa，顶涂层的硬度（H）从11.07 GPa显着增加到23.57 GPa。此外，H ³ / E ²的值也从0.06 GPa增加到0.15 GPa，这意味着陶瓷涂层的韧性得到了明显改善。纯陶瓷涂层仅在空化测试4小时后才被刺穿。但是，具有高弹性和韧性的树脂可以有效地吸收冲击能，防止在气蚀侵蚀过程中裂纹扩展和延迟剥落。这种新型的复合涂层比纯陶瓷涂层表现出更好的抗气蚀性，并且在10小时的测试后仍然完好无损。