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一种非浸润性钽酸盐陶瓷涂层的制备方法
本发明涉及热障涂层技术领域，具体涉及一种非浸润性钽酸盐陶瓷涂层的制备方法。本发明通过溶液法制备纳米级的RETaO4球形粉体，粉体粒径小，无需经过其他处理即可直接通过大气等离子喷涂制备得到涂层材料。本发明的非浸润性钽酸盐陶瓷涂层材料能够有效抑制涂层中产物气孔和裂纹，有效防止了高温中CMAS熔体通过气孔和裂纹渗透涂层，从而保证了涂层的完整性，且与CMAS熔体不反应，同时具有非浸润性的特点，在高温下CMAS熔体直接从涂层表面流走。因此所制备的陶瓷涂层致密度高且抗CMAS腐蚀性能极强，其在热障涂层、环境障涂层、防护涂层和防腐涂层等领域具有极大的应用前景。
The invention relates to the technical field of thermal barrier coatings, in particular to a preparation method of a non-wettability tantalate ceramic coating. The nanoscale RETaO4 spherical powder is prepared through a solution method, the particle size of the powder is small, and the coating material can be directly prepared through atmospheric plasma spraying without other treatment. The non-wettability tantalate ceramic coating material can effectively inhibit product pores and cracks in a coating and effectively prevent CMAS melt from permeating the coating through the pores and the cracks at a high temperature, so that the integrity of the coating is guaranteed, the coating does not react with the CMAS melt, meanwhile, the non-wettability characteristic is achieved, and the CMAS melt directly flows away from the surface of the coating at the high temperature. Therefore, the prepared ceramic coating is high in density and extremely high in CMAS corrosion resistance, and has great application prospects in the fields of thermal barrier coatings, environmental barrier coatings, protective coatings, anticorrosive coatings and the like.
一种非浸润性钽酸盐陶瓷涂层的制备方法
本发明涉及热障涂层技术领域，具体涉及一种非浸润性钽酸盐陶瓷涂层的制备方法。本发明通过溶液法制备纳米级的RETaO4球形粉体，粉体粒径小，无需经过其他处理即可直接通过大气等离子喷涂制备得到涂层材料。本发明的非浸润性钽酸盐陶瓷涂层材料能够有效抑制涂层中产物气孔和裂纹，有效防止了高温中CMAS熔体通过气孔和裂纹渗透涂层，从而保证了涂层的完整性，且与CMAS熔体不反应，同时具有非浸润性的特点，在高温下CMAS熔体直接从涂层表面流走。因此所制备的陶瓷涂层致密度高且抗CMAS腐蚀性能极强，其在热障涂层、环境障涂层、防护涂层和防腐涂层等领域具有极大的应用前景。
The invention relates to the technical field of thermal barrier coatings, in particular to a preparation method of a non-wettability tantalate ceramic coating. The nanoscale RETaO4 spherical powder is prepared through a solution method, the particle size of the powder is small, and the coating material can be directly prepared through atmospheric plasma spraying without other treatment. The non-wettability tantalate ceramic coating material can effectively inhibit product pores and cracks in a coating and effectively prevent CMAS melt from permeating the coating through the pores and the cracks at a high temperature, so that the integrity of the coating is guaranteed, the coating does not react with the CMAS melt, meanwhile, the non-wettability characteristic is achieved, and the CMAS melt directly flows away from the surface of the coating at the high temperature. Therefore, the prepared ceramic coating is high in density and extremely high in CMAS corrosion resistance, and has great application prospects in the fields of thermal barrier coatings, environmental barrier coatings, protective coatings, anticorrosive coatings and the like.
一种非浸润性钽酸盐陶瓷涂层的制备方法
07.03.2025
Patent
Elektronische Ressource
Chinesisch