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Porous media reinforced with carbon soots

机译：碳烟灰增强的多孔介质

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摘要

Alumina matrix porous media (composites) can be efficiently reinforced with nanostructured particles of carbon, namely soots. The porous media can be produced a wide range of porosity, conductivity, and hardness. The novelty of this work is the use of carbon byproducts from the synthesis of fullerene and multi walled carbon nanotubes (MWCNT). The soots contain no more than ＜1 wt% of the pristine quality product. The porous media are manufactured by mechanical milling, sonication, and Spark Plasma Sintering (SPS). Porosity Levels between 0% and 28.6% are possible for the fullerene and MWCNT soots respectively. The porosity and permeability depend on the type and amount of carbon additions. The electrical resistivity in the composites was reduced from 7 to 14 orders of magnitude with the hardness ranging from 2 to 19 GPa for membranes reinforced with fullerene or MWCNT soot respectively. The composites are ideal for membrane applications.
机译：氧化铝基多孔介质（复合材料）可以用碳的纳米结构颗粒（即烟s）有效地增强。多孔介质的孔隙率，电导率和硬度范围很广。这项工作的新颖之处在于使用了富勒烯和多壁碳纳米管（MWCNT）合成过程中产生的碳副产物。烟灰含量不超过原始质量产品的＜1 wt％。多孔介质是通过机械研磨，超声和火花等离子体烧结（SPS）制造的。富勒烯和MWCNT烟灰的孔隙率水平可能分别在0％和28.6％之间。孔隙率和渗透率取决于碳添加的类型和数量。复合材料的电阻率从7个数量级降低到14个数量级，而分别用富勒烯或MWCNT烟灰增强的膜的硬度在2到19 GPa之间。该复合材料是膜应用的理想选择。

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  • 来源
    《Materials Chemistry and Physics》 |2013年第3期|651-658|共8页
  • 作者

    Andres E. Fals; V.G. Hadjiev; F.C. Robles Hernandez;

  • 作者单位

    Department of Mechanical Engineering Technology, College of Technology, University of Houston, 304 Technology Building, Houston,TX 77204-4020, USA;

    Texas Center for Superconductivity, University of Houston, TX 77204-5002, USA,Department of Mechanical Engineering, University of Houston, TX 77204-5002, USA;

    Department of Mechanical Engineering Technology, College of Technology, University of Houston, 304 Technology Building, Houston,TX 77204-4020, USA;

  • 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

    Ceramics; Microporous materials; Powder metallurgy; Electron microscopy; Electrical properties; Sintering;

    机译：陶瓷;微孔材料;粉末冶金;电子显微镜;电气性能;烧结;

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