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Characterization of diamond MWCNTs composite fiber synthesized under high pressure and high temperature

机译:高压高温合成金刚石MWCNTs复合纤维的表征

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摘要

A regrown composite fiber was synthesized during the sintering of diamond under high pressure 5.8 GPa and high temperature 1500 ℃ for 1 min, using 3wt% MWCNTs as additive. SEM observation of the fiber after alkali and acid treatment revealed that the outer layer of the fiber is composed of nano-polycrystalline diamond. EDS, XPS, XRD and Raman spectrum analysis further identified that the fiber is composed of MWCNTs in the inner part and nano-polycrystalline diamond in the out layer. It is proposed that the untransformed MWCNTs may act as a template for the regrown outer layer of nano diamond fiber under high pressure and high temperature.
机译:以3wt%的MWCNTs为添加剂,在5.8 MPa的高压和1500℃的高温下烧结1分钟合成了再生长复合纤维。碱和酸处理后的纤维的SEM观察表明,纤维的外层由纳米多晶金刚石组成。 EDS,XPS,XRD和拉曼光谱分析进一步确定,该纤维由内部的MWCNT和外层的纳米多晶金刚石组成。提出了未转化的MWCNT可以在高压和高温下充当纳米金刚石纤维的再生长外层的模板。

著录项

  • 来源
  • 会议地点 Zhengzhou(CN)
  • 作者单位

    Deng Fuming@Department of Materials Science and Engineering, China;

    University of Mining and Technology, Beijing Campus, Beijing 100083, China;

    Department of Physics, Zhejiang University, Hangzhou 310027, China--Lu Xuejun@Department of Materials Science and Engineering, China;

    University of Mining and Technology, Beijing Campus, Beijing 100083, China;

    Beijing Institute of Electro-machining. Beijing 100083. China--Liu Ruiping@Department of Materials Science and Engineering, China;

    University of Mining and Technology, Beijing Campus, Beijing 100083, China--Xu Guojun@Beijing Institute of Electro-machining. Beijing 100083. China--Chen Quwu@Department of Materials Science and Engineering, China;

    University of Mining and Technology, Beijing Campus, Beijing 100083, China--Li Wenzhu@Department of Physic;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TTB30;
  • 关键词

    Mullti-walled carbon nanotubes (MWCNTs); Nano-polycrystalline diamond fiber High pressure /high temperature (HP-HT) Sintering;

    机译:多壁碳纳米管;纳米多晶金刚石纤维高压/高温(HP-HT)烧结;

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