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Investigation of the interfacial phases formed between carbon nanotubes and aluminum in a bulk material

机译:研究散装材料中碳纳米管和铝之间形成的界面相

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摘要

This research describes an investigation of the interfacial phases formed between aluminum (Al) and carbon nanotubes (CNT) which properties depend on the processing temperature (below, slightly above and over the melting point of Al). Al-CNT compacts were prepared by spark plasma sintering followed by heat treatment in order to observe the interface phases. The microstructures of both the as-sintered and heat-treated materials have been observed by optical, scanning and transmission electron microscopies. The amorphous Al oxide observed at the boundaries in the as-sintered material is transformed to crystalline Al oxide after the heat treatment. In addition, some of the CNTs decomposed and reacted with the Al, resulting in the formation of Al carbide which shows different size distributions depending on the heat treatment temperature. According to the results, it is possible to control the phase formed at the Al -CNT interface by controlling the process temperature and those controlled interfaces will be playing important role to the properties in a bulk materials.
机译:这项研究描述了对铝(Al)和碳纳米管(CNT)之间形成的界面相的研究,该界面相的性质取决于处理温度(低于,略高于和高于Al的熔点)。 Al-CNT压块的制备是通过火花等离子体烧结,然后进行热处理,以观察界面相。已通过光学,扫描和透射电子显微镜观察了烧结和热处理材料的微观结构。在热处理后,在烧结后的材料的边界处观察到的无定形氧化铝被转化为结晶的氧化铝。另外,一些CNT分解并与Al反应,导致形成碳化铝,碳化铝显示出取决于热处理温度的不同尺寸分布。根据该结果,可以通过控制工艺温度来控制在Al -CNT界面处形成的相,并且那些受控的界面将对块状材料的性能起重要作用。

著录项

  • 来源
    《Materials Chemistry and Physics》 |2013年第3期|787-793|共7页
  • 作者单位

    Empa, Swiss Federal Laboratories for Materials Science and Technology, Advanced Materials Processing, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland;

    Department of Materials Processing Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;

    Department of Materials Processing Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;

    Empa, Swiss Federal Laboratories for Materials Science and Technology, Advanced Materials Processing, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Composite materials; Interfaces; Powder metallurgy; Electron microscopy (STEM TEM and SEM);

    机译:复合材料;接口;粉末冶金;电子显微镜(STEM TEM和SEM);

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