宋仁国,王超,姜彦,卢果

• 1:常州大学材料科学与工程学院
• 2:常州大学先进金属材料常州市重点实验室

摘要(Abstract)：

采用等离子喷涂技术制备了不同成分的Al2O3/TiO2纳米陶瓷复合涂层,并利用X射线衍射仪(XRD)、扫描电镜(SEM)、显微硬度计和摩擦磨损试验机等分析测试手段研究了纳米陶瓷复合涂层的微观结构与性能。结果表明:纳米陶瓷复合涂层中Al2O3以α-Al2O3和γ-Al2O3两相共存的形式存在,且γ-Al2O3的含量随喷涂功率的增加而增加,而涂层中的Ti02则以金红石型存在;其微结构为完全熔化区的片状微观组织和部分熔化区的纳米级颗粒共存的组织;等离子喷涂功率和TiO2含量对涂层的硬度和耐磨性能均有显著的影响。

关键词(KeyWords)： 等离子喷涂;纳米陶瓷复合涂层;微结构;性能

Abstract:

Keywords:

基金项目(Foundation): 常州市科技局科技支撑计划资助项目(CE20110092)

作者(Author): 宋仁国,王超,姜彦,卢果

DOI: 10.13289/j.issn.1009-6264.2012.s2.029

参考文献(References)：

• [1]徐滨士.纳米表面工程[M].北京:化学工业出版社,2004.
• [2]Pranevicius L,Valatkevicius P,Valincius V,et al.Catalytic behavior of plasma-sprayed Al-Al2O3 coatings doped with metal oxides[J].Surface andCoatings Technology,2000,125(1):392-395.
• [3]Song R G.Hydrogen permeation resistance of plasma-sprayed Al2O3 and 13-wt%TiO2 ceramic coatings on austenitic stainless steel[J].Surfaceand Coatings Technology,2003,168(2-3):191-194.
• [4]王超,宋仁国.激光表面重熔对ZrO2-8wt%Y2O3热障涂层组织与抗热震性能的影响[J].材料热处理学报,2011,32(5):143-146.WANG Chao,SONG Ren-guo.Effect of laser surface remelting on microstructure and thermal shock resistance of ZrO2-8 wt%Y2O3 coatings[J].Transactions of Materials and Heat Treatment,2011,32(5):143-146.
• [5]Yang K,Zhou X M,Zhao H Y,et al.Microstructure and mechanical properties of Al2O3-Cr2O3 composite coatings produced by atmospheric plasmaspraying[J].Surface and Coatings Technology,2011,206(6):1362-1371.
• [6]Goberman D,Sohn Y H,Shaw L,et al.Microstructure development of Al2O3-13wt.%TiO2 plasma sprayed coatings derived from nanocrystallinepowders[J].Acta Materialia,2002,50:1141-1152.
• [7]Chen X G,Yang Y,Yan D R,et al.Microstructure and properties of in situ nanostructured ceramic matrix composite coating prepared by plasmaspraying[J].Joural of Materials Science,2011,46(23):7369-7376.
• [8]宫文彪,孙大千,孙喜兵,等.等离子喷涂纳米团聚体粉末的熔化特性研究[J].材料热处理学报,2007,28(4):125-129.GONG Wen-biao,SUN Da-qian,SUN Xi-bing,et al.Study on melting characteristics of plasma-sprayed nanometer agglomerated powders[J].Transactions of Materials and Heat Treatment,2007,28(4):125-129.
• [9]Ctibor P,Bohac P,Stranyanek M,et al.Structure and mechanical properties of plasma sprayed coatings of titania and alumina[J].Journal ofEuropean Ceramic Society,2006,26(6):3509-3514.
• [10]Wang D S,Tian Z J,Shen L D,et al.Microstructural characteristics and formation mechanism of Al2O3-13 wt.%TiO2 coatings plasma-sprayed withnanostructured agglomerated powders[J].Surface and Coatings Technology,2009,203(10-11):1298-1303.

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