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Reinforcing effects of carbon nanotubes in structural aluminum matrix nanocomposites

机译:碳纳米管对铝结构纳米复合材料的增强作用

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摘要

The reinforcing effects of carbon nanotubes (CNTs) are investigated for aluminum matrix composites. The composites present a strong bonding between CNTs and the aluminum matrix using a controlled mechanical milling process, producing a network structure of aluminum atoms around CNTs. At the same time, CNTs that are dispersed during the milling process can be located inside aluminum powders, thereby providing an easy consolidation route via thermomechanical processes. A composite containing 4.5 vol% multiwalled CNTs exhibits a yield strength of 620 MPa and fracture toughness of 61 MPa·mm~(1/2), the values of which are nearly 15 and seven times higher than those of the corresponding starting aluminum, respectively.
机译:研究了碳纳米管对铝基复合材料的增强作用。使用受控的机械研磨工艺,复合材料在CNT与铝基体之间呈现出牢固的结合,从而在CNT周围产生铝原子的网络结构。同时,在研磨过程中分散的CNT可以位于铝粉内部,从而通过热机械过程提供了一种简单的固结途径。含有4.5%(体积)的多壁碳纳米管的复合材料的屈服强度为620 MPa,断裂韧性为61 MPa·mm〜(1/2),其值分别比相应的起始铝高近15倍和7倍。 。

著录项

  • 来源
    《Journal of Materials Research》 |2009年第8期|2610-2616|共7页
  • 作者单位

    Division of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea;

    Division of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea;

    Division of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea;

    Division of Advanced Materials Engineering, Hanbat University, Daejoen 305-719, Korea;

    Division of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea;

  • 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
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