| 等离子喷涂纳米Al_2O_3-13%TiO_2陶瓷涂层的组织结构与抗冲蚀性能 |
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| 引用本文： | 何康康,田宗军,王东生,沈理达,刘志东,黄因慧.等离子喷涂纳米Al_2O_3-13%TiO_2陶瓷涂层的组织结构与抗冲蚀性能[J].机械工程材料,2009(8). |
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| 作者姓名： | 何康康 田宗军 王东生 沈理达 刘志东 黄因慧 |
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| 作者单位： | 南京航空航天大学江苏省精密与微细制造技术重点实验室;南京航空航天大学机电工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(59975046); 江苏省自然科学基金重点资助项目(BK2004005) |
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| 摘 要： | 采用等离子喷涂方法分别制备了常规和纳米Al2O3-13%TiO2陶瓷涂层,用扫描电子显微镜分析了涂层的显微结构,并对涂层进行了抗冲蚀试验。结果表明:常规陶瓷涂层具有典型的片层状结构,但纳米陶瓷涂层片层状结构并不十分明显,且涂层裂纹数量明显减少;纳米陶瓷涂层中的显微结构的变化改善了涂层的韧性和结合性能;在冲蚀过程中,常规陶瓷涂层表面剥落严重,而纳米陶瓷涂层的冲蚀质量损失较小,抗冲蚀性能比常规陶瓷涂层提高了30%左右。
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| 关 键 词： | 等离子喷涂 纳米Al2O3-13%TiO2陶瓷涂层 抗冲蚀性能 |
Microstructure and Erosion Resistance of Nanostructured Al_2O_3-13%TiO_2 Ceramic Coatings Fabricated by Plasma Spraying |
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| HE Kang-kang,TIAN Zong-jun,WANG Dong-sheng,SHEN Li-da,LIU Zhi-dong,HUANG Yin-hui.Microstructure and Erosion Resistance of Nanostructured Al_2O_3-13%TiO_2 Ceramic Coatings Fabricated by Plasma Spraying[J].Materials For Mechanical Engineering,2009(8). |
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| Authors: | HE Kang-kang TIAN Zong-jun WANG Dong-sheng SHEN Li-da LIU Zhi-dong HUANG Yin-hui |
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| Affiliation: | HE Kang-kang1,2,TIAN Zong-jun1,WANG Dong-sheng2,SHEN Li-da2,LIU Zhi-dong1,HUANG Yin-hui1,2(1.Jiangsu Key Laboratory of Precision and Micro-manufacturing Technology,2.College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | The conventional and nanostructured Al2O3-13%TiO2 ceramic coatings were prepared by plasma spraying.The microstructure of the coatings was examined by SEM and the erosion resistance of the coatings was tested.The results show that the conventional coating had a typical flake structure.However,the nanostructured coating exhibited unconspicuous flake structure with less microcracks.The microstructure change of nanostructured coating improved the toughness and bond strength.During the erosion process the conve... |
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| Keywords: | plasma spraying nanostructured Al2O3-13%TiO2 ceramic coating erosion resistance |
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