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CORROSION MECHANISMS ON COMPOSITE SOL-GEL (CSG)COATING SYSTEMS IN SALINE SOLUTION

机译:盐溶液中复合SOL-GEL(CSG)涂层系统的腐蚀机理

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摘要

Composite Sol-Gel (CSG) coatings, which are part of a broad class of sol-gel matrix composites, havernreceived much attention as high performance materials for a wide range of surface engineering applications,rnsuch as industrial decorative coating and protective coating. In this study an alumina CSG ceramic has beenrnfabricated by dispersing calcined alumina powder in an alumina sol. The alumina sol acts as a dispersant andrnsintering accelerator for the calcined alumina.rnIn this study the corrosion behaviour is characterized using Electrochemical Impedance Spectroscopyrn(EIS) techniques. The corrosion response of the coating has been linked to the structure and the time forrnsolution penetration can be determined using electrochemical signatures.
机译:作为广泛的溶胶-凝胶基质复合材料类别的一部分的复合溶胶-凝胶(CSG)涂料作为高性能材料广泛应用于表面工程应用,例如工业装饰涂料和防护涂料,已经引起了广泛的关注。在这项研究中,通过将煅烧的氧化铝粉末分散在氧化铝溶胶中来制造氧化铝CSG陶瓷。氧化铝溶胶充当煅烧氧化铝的分散剂和烧结促进剂。在这项研究中,使用电化学阻抗谱(EIS)技术表征了腐蚀行为。涂层的腐蚀响应与结构有关,可以使用电化学特征确定溶液渗透的时间。

著录项

  • 来源
  • 会议地点 San Diego CA(US)
  • 作者单位

    Corrosion and Surface Engineering Research Group,rnSchool of Engineering and Physical Sciences,rnHeriot-Watt University,rnEdinburgh,rnEH14 4AS;

    Corrosion and Surface Engineering Research Group,rnSchool of Engineering and Physical Sciences,rnHeriot-Watt University,rnEdinburgh,rnEH14 4AS;

    Ceramics Group at Metals and Materials EngineeringrnUniversity of British ColumbiarnVancouverrnCanada;

    Tribology/Surface TechnologiesrnNational Research CouncilrnVancouverrnCanada;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 材料腐蚀与保护;
  • 关键词

    corrosion; thermal spray; coating; cermet.;

    机译:腐蚀;热喷涂;涂层;金属陶瓷。;

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