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曾鹏,王卫泽,王和慧,于景业,吴良敏.硝酸腐蚀对等离子喷涂YAG:Ce涂层的发光性能的影响[J].稀有金属材料与工程(英文),2018,47(1):339~343.[Peng Zeng,Weize Wang,Hehui Wang,Jingye Yu and Liangmin Wu.Effect of nitric acid corrosion on the luminescent intensity of plasma sprayed YAG: Ce coatings[J].Rare Metal Materials and Engineering,2018,47(1):339~343.]
Effect of nitric acid corrosion on the luminescent intensity of plasma sprayed YAG: Ce coatings
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Received:November 20, 2015  Revised:January 31, 2016
DOI:
Key words: YAG:Ce  Luminescent intensity  Nitric acid  Corrosion  Plasma spraying  Coating
Foundation item:国家自然科学资助(项目号51275172);上海市项目(项目号15PJD009, 14DZ2261205);航空基金(项目号2015ZES7001, 2013ZFS7001)
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Peng Zeng,Weize Wang,Hehui Wang,Jingye Yu and Liangmin Wu  
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Abstract:
      To explore the application of fluorescence elements in the field of corrosion monitoring, Ce doped YAG (Y3Al5O12) powder and coatings are prepared respectively. The effect of immersion duration in nitric acid is studied on the luminescent intensity. The results show that the YAG: Ce powder is mainly YAG phase. While the plasma sprayed coatings are dominated by YAG and YAP (YAlO3). The porosity and diffraction peak intensity of YAG: Ce coatings increase with the immersion duration in nitric acid. Meanwhile, the diffraction peak position moves for the coatings after they are immersed in the acid. The luminescent intensity of coatings increases firstly, and then decreases, and finally increases with the increment of immersion duration. The luminescent intensity of coatings is influenced by the porosity, crystallinity and phase composition of coatings etc.