• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Tungsten and iridium multilayered structure by DGP as ablation-resistance coatings for graphite
【24h】

Tungsten and iridium multilayered structure by DGP as ablation-resistance coatings for graphite

机译：DGP钨和铱多层结构作为石墨的抗烧蚀涂层

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Oxidation protection of carbon material under ultra-high temperature is a serious problem. In this paper, a newly designed multilayer coating of W/Ir was produced onto the graphite substrate by double glow plasma. As comparison, the Ir single-layer coating on the graphite was also prepared. The ablation property and thermal stability of the coatings were studied at 2000 °C in an oxyacetylene torch flame. Ablation tests showed that the coated graphite substrates were protected more effectively by W/Ir multilayer coating than Ir single-layer coating. Ir single-layer coating after ablation kept the integrality, although there was a poor adhesion of the Ir coating to the graphite substrate because of the thermal expansion mismatch and the non-wetting of the carbon by Ir coating. The mass loss rate of the W/Ir-coated specimen after ablation was about 1.62%. The interface of W/Ir multilayer coating and the graphite substrate exhibited good adherence no evidence of delamination after ablation. W/Ir multilayer coating could be useful for protecting graphite in high-temperature application for a short time.
机译：碳材料在超高温下的氧化保护是一个严重的问题。在本文中，通过双辉光等离子体在石墨基底上制备了一种新设计的W / Ir多层涂层。作为比较，还制备了石墨上的Ir单层涂层。在氧乙炔火炬火焰中于2000°C下研究了涂层的烧蚀性能和热稳定性。烧蚀测试表明，与Ir单层涂层相比，W / Ir多层涂层可以更有效地保护涂覆的石墨基材。烧蚀后的Ir单层涂层保持了完整性，尽管由于热膨胀失配和Ir涂层对碳的不润湿性，Ir涂层与石墨基板的粘合性很差。烧蚀后涂有W / Ir的样品的质量损失率约为1.62％。 W / Ir多层涂层与石墨基材的界面表现出良好的附着力，烧蚀后没有分层迹象。 W / Ir多层涂层可用于在短时间内保护高温应用中的石墨。

著录项

  • 来源
    《Applied Surface Science》 |2011年第16期|p.7295-7304|共10页
  • 作者

    Wangping Wu; Zhaofeng Chen; Han Cheng; Liangbing Wang; Ying Zhang;

  • 作者单位

    College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

    College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

    College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

    College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

    College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coating; graphite; w/ir; ablation;

    机译：涂层;石墨;w / ir;烧蚀;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号