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Salt-spray-corrosion-resistant and thermal-shock-resistant alumina-based smooth coating
The invention belongs to the technical field of refractory materials, and particularly relates to an alumina-based smooth coating resistant to salt spray corrosion and thermal shock. The alumina-based smooth coating takes alumina powder as powder of the smooth coating; the body particle size range of the alumina powder is 0.1-10 [mu] m; the preparation method comprises the following steps: uniformly mixing aluminum oxide powder and an adhesive to prepare slurry, completely dipping a YSZ matrix sample prepared by thermal spraying into the slurry or uniformly brushing the slurry on the surface of the sample, drying the sample after the slurry on the surface of the sample is naturally leveled, and performing thermal treatment after the slurry on the surface of the sample is cured, thereby obtaining the YSZ matrix sample. And after heat treatment is finished, a spiral micrometer and a surface roughness detector are used for detection. The smooth coating has the advantages of being low in roughness, high in reflectivity, excellent in salt spray corrosion resistance and thermal shock resistance and the like, and the service life of the thermal barrier coating in the current complex environment of aviation gas turbines and aero-engines is effectively prolonged.
本发明属于耐火材料技术领域，具体涉及一种抗盐雾腐蚀、抗热冲击的氧化铝基光滑涂层。氧化铝基光滑涂层以氧化铝粉体作为光滑涂层的粉体；氧化铝粉的体粒径范围为0.1～10μm；氧化铝粉体与粘接剂混合均匀后制成浆料，将热喷涂制备的YSZ基体试样完全浸渍入到浆料中或者将浆料均匀地刷涂在试样表面，待试样表面浆料自然流平后，对其进行烘干，待试样表面浆料固化后进行热处理，热处理结束后使用螺旋测微仪和表面粗糙度检测仪进行检测。本发明光滑涂层具有粗糙度低、反射率高、抗盐雾腐蚀性能及抗热冲击性能优异等特点，有效地提升热障涂层在目前航空燃气涡轮机和航空发动机复杂环境下的服役寿命。
Salt-spray-corrosion-resistant and thermal-shock-resistant alumina-based smooth coating
The invention belongs to the technical field of refractory materials, and particularly relates to an alumina-based smooth coating resistant to salt spray corrosion and thermal shock. The alumina-based smooth coating takes alumina powder as powder of the smooth coating; the body particle size range of the alumina powder is 0.1-10 [mu] m; the preparation method comprises the following steps: uniformly mixing aluminum oxide powder and an adhesive to prepare slurry, completely dipping a YSZ matrix sample prepared by thermal spraying into the slurry or uniformly brushing the slurry on the surface of the sample, drying the sample after the slurry on the surface of the sample is naturally leveled, and performing thermal treatment after the slurry on the surface of the sample is cured, thereby obtaining the YSZ matrix sample. And after heat treatment is finished, a spiral micrometer and a surface roughness detector are used for detection. The smooth coating has the advantages of being low in roughness, high in reflectivity, excellent in salt spray corrosion resistance and thermal shock resistance and the like, and the service life of the thermal barrier coating in the current complex environment of aviation gas turbines and aero-engines is effectively prolonged.
本发明属于耐火材料技术领域，具体涉及一种抗盐雾腐蚀、抗热冲击的氧化铝基光滑涂层。氧化铝基光滑涂层以氧化铝粉体作为光滑涂层的粉体；氧化铝粉的体粒径范围为0.1～10μm；氧化铝粉体与粘接剂混合均匀后制成浆料，将热喷涂制备的YSZ基体试样完全浸渍入到浆料中或者将浆料均匀地刷涂在试样表面，待试样表面浆料自然流平后，对其进行烘干，待试样表面浆料固化后进行热处理，热处理结束后使用螺旋测微仪和表面粗糙度检测仪进行检测。本发明光滑涂层具有粗糙度低、反射率高、抗盐雾腐蚀性能及抗热冲击性能优异等特点，有效地提升热障涂层在目前航空燃气涡轮机和航空发动机复杂环境下的服役寿命。
Salt-spray-corrosion-resistant and thermal-shock-resistant alumina-based smooth coating
抗盐雾腐蚀、抗热冲击的氧化铝基光滑涂层
LI HONGXIA (author) / ZHONG XINGYU (author) / ZHAO SHIXIAN (author) / LI LINGFENG (author) / LIU GUANGHUA (author) / LI HONGYU (author) / SUN JIAN (author) / WANG GANG (author) / CAO LEI (author) / GENG PU (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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