A4钢表面碳纳米管增强胶黏陶瓷涂层的制备与耐磨性能
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摘要
为提高溶胶凝胶陶瓷涂层的耐磨性,提高涂层对金属材料的磨损保护,采用溶胶凝胶技术在A4钢表面制备了碳纳米管增强陶瓷涂层,用扫描电镜(SEM)表征了陶瓷涂层的表面和截面形貌,用X射线衍射仪(XRD)分析了普通陶瓷涂层和含碳纳米管的陶瓷涂层的组分,并测试了不同碳纳米管含量的陶瓷涂层的耐磨性能。结果表明:制得的陶瓷涂层表面形貌致密,陶瓷涂层与金属基体之间相互咬合;添加碳纳米管的涂层组分中未生成其他含碳物质,即碳纳米管未参与固化反应;碳纳米管的添加提升了涂层的耐磨性能,且当碳纳米管的含量为0.3%时,涂层具有最佳的耐磨性。
In order to improve the wear resistance of ceramic coatings prepared by the sol-gel method and enhance the wear protection of coating on metal materials,ceramic coatings reinforced by carbon nanotubes( CNTs) were prepared on the surface of A4 steel using sol-gel technique.The surface and sectional morphology of ceramic coatings were characterized by scanning electron microscope( SEM),and the components of ceramic coatings and ceramic coatings with CNTs were analyzed by X-ray diffractometer( XRD). In addition,the wear resistance of ceramic coatings with different content of CNTs was tested. Results showed the surface morphology of coatings was dense,and the bonding between the coatings and substrate presented a mechanical anchorage connection. Moreover,adding CNTs did not cause extra carbon-containing material,in other word,CNTs did not react with the other components. It was found that the addition of CNTs could improve the wear resistance of coating. When the content of CNTs was 0.3%,the as-obtained coating had the optimal wear resistance.
In order to improve the wear resistance of ceramic coatings prepared by the sol-gel method and enhance the wear protection of coating on metal materials,ceramic coatings reinforced by carbon nanotubes( CNTs) were prepared on the surface of A4 steel using sol-gel technique.The surface and sectional morphology of ceramic coatings were characterized by scanning electron microscope( SEM),and the components of ceramic coatings and ceramic coatings with CNTs were analyzed by X-ray diffractometer( XRD). In addition,the wear resistance of ceramic coatings with different content of CNTs was tested. Results showed the surface morphology of coatings was dense,and the bonding between the coatings and substrate presented a mechanical anchorage connection. Moreover,adding CNTs did not cause extra carbon-containing material,in other word,CNTs did not react with the other components. It was found that the addition of CNTs could improve the wear resistance of coating. When the content of CNTs was 0.3%,the as-obtained coating had the optimal wear resistance.
引文
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[2] GURAPPA I. Development of appropriate thickness ceramic coatings on 316L stainless steel for biomedical applications[J]. Surface and Coatings Technology,2002,161(1):70-78.
[3]卞达.石墨烯增强耐磨减摩氧化铝陶瓷涂层基础研究[D].无锡:江南大学,2017.
[4]尹健,丁旭,熊伟.注塑模零件电刷镀纳米镀层的耐磨性能研究[J].贵州工业大学学报(自然科学版),2005(6):21-24.
[5] YE B. Study on Nano-particle Composite Coating of Engine on Electric-Magnetic and Laser Field[J]. Lubrication Engineering,2007(11):115-117.
[6] ZHANG H,ZHANG H,TANG L,et al. Wear-resistant and transparent acrylate-based coating with highly filled nanosilica particles[J]. Tribology International,2010,43(1):83-91.
[7]黄国栋,倪自丰,卞达,等.纳米氧化铝对金属基陶瓷涂层性能的影响[J].西北大学学报:自然科学版,2014,44(3):429-432.
[8] DING L,HU S. Effect of nano-Ce O2on microstructure and wear resistance of Co-based coatings[J]. Surface and Coatings Technology,2015,276:565-572.
[9]汪刘应,徐卓,华绍春,等.微弧等离子喷涂碳纳米管/纳米Al2O3-13%TiO2复合涂层高温性能研究[J].无机材料学报,2011,26(3):239-243.
[10]张翔,李军,廖寄乔,等.沉积温度和碳纳米管对CVD Si C涂层微观形貌的影响[J].粉末冶金材料科学与工程,2010,15(5):511-515.
[11] LIM D S,YOU D H,CHOI H J,et al. Effect of CNT distribution on tribological behavior of alumina-CNT compoites[J]. Wear,2005,259:539-544.
[12] PUCHY V,HVIZDOS P,DUSZA J,et al. Wear resistance of Al2O3-CNT ceramic nanocomposites at room and high temperature[J]. Ceramics International,2013,39:5 821-5 826.
[13] XIA Z,RIESTER L,CURTIN W A,et al. Direct observation of toughening mechanisms in carbon nanotube ceramic matrix composition[J]. Acta Materialia,2004,52:931-944.