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Graphene oxide coated ceramic particle corrosion-resistant gradient coating and preparation method thereof
The invention discloses a preparation method of a graphene oxide coated ceramic particle corrosion-resistant gradient coating. The preparation method comprises the following steps: preparing graphene oxide coated Cr3C2 ceramic particles, carrying out dispersion reaction on the graphene oxide coated Cr3C2 ceramic particles and metal oxide powder to generate a hybrid reactant, finally mixing the hybrid reactant with ceramic aggregate and an adhesive, and curing and sintering to prepare the corrosion-resistant ceramic coating. The core-shell structure of the ceramic particles and the graphene oxide is favorable for improving the bonding strength of the graphene oxide and a ceramic matrix, avoiding gaps on an interface, improving the compactness of the coating, reducing the generation of cracks of the coating and improving the high-temperature corrosion resistance of the coating; and meanwhile, the core-shell structure is beneficial to improving the oxidation resistance of the coating and prolonging the service life of the coating.
本发明公开了一种氧化石墨烯包覆陶瓷颗粒耐腐蚀梯度涂层的制备方法，包括制备氧化石墨烯包覆的Cr3C2陶瓷颗粒，与金属氧化物粉体分散反应，生成杂化反应物，最后与陶瓷骨料、胶黏剂混合，固化烧结制成耐腐蚀陶瓷涂层。本发明中陶瓷颗粒@氧化石墨烯的核壳结构有助于提高氧化石墨烯与陶瓷基质的结合强度，避免界面产生间隙，提高涂层的致密性，减少涂层裂纹的产生，提高涂层的耐高温腐蚀性能；同时核壳结构有助于提高涂层的抗氧化性能，延长涂层的服役寿命。
Graphene oxide coated ceramic particle corrosion-resistant gradient coating and preparation method thereof
The invention discloses a preparation method of a graphene oxide coated ceramic particle corrosion-resistant gradient coating. The preparation method comprises the following steps: preparing graphene oxide coated Cr3C2 ceramic particles, carrying out dispersion reaction on the graphene oxide coated Cr3C2 ceramic particles and metal oxide powder to generate a hybrid reactant, finally mixing the hybrid reactant with ceramic aggregate and an adhesive, and curing and sintering to prepare the corrosion-resistant ceramic coating. The core-shell structure of the ceramic particles and the graphene oxide is favorable for improving the bonding strength of the graphene oxide and a ceramic matrix, avoiding gaps on an interface, improving the compactness of the coating, reducing the generation of cracks of the coating and improving the high-temperature corrosion resistance of the coating; and meanwhile, the core-shell structure is beneficial to improving the oxidation resistance of the coating and prolonging the service life of the coating.
本发明公开了一种氧化石墨烯包覆陶瓷颗粒耐腐蚀梯度涂层的制备方法，包括制备氧化石墨烯包覆的Cr3C2陶瓷颗粒，与金属氧化物粉体分散反应，生成杂化反应物，最后与陶瓷骨料、胶黏剂混合，固化烧结制成耐腐蚀陶瓷涂层。本发明中陶瓷颗粒@氧化石墨烯的核壳结构有助于提高氧化石墨烯与陶瓷基质的结合强度，避免界面产生间隙，提高涂层的致密性，减少涂层裂纹的产生，提高涂层的耐高温腐蚀性能；同时核壳结构有助于提高涂层的抗氧化性能，延长涂层的服役寿命。
Graphene oxide coated ceramic particle corrosion-resistant gradient coating and preparation method thereof
一种氧化石墨烯包覆陶瓷颗粒耐腐蚀梯度涂层及其制备方法
TAI ZHAOSHAN (author)
2022-05-13
Patent
Electronic Resource
Chinese
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