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<p>Carbonization is one of the key processes for the preparation of polyacrylonitrile (PAN)-based carbon fibers. During the carbonization process, the pore structure within the fiber undergoes complex changes that can be monitored using small-angle X-ray scattering (SAXS). This paper introduces the carbonization mechanism of PAN-based fibers and the basic principles and methods of SAXS, reviews the application of SAXS in the study of the carbonization process of PAN pre-oxidized fibers, and looks forward to the prospect of using synchrotron radiation as the X-ray source for SAXS <i>in situ</i> study of the fiber carbonization process.</p>

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Application prospect of synchrotron radiation SAXS in in-situ study on carbonization of PAN fibers

  • 期刊论文

  • 发表日期：

    2026年4月10日

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  • Zhuang Li,
  • Yanjun Gong,
  • Lili Dong,
  • Zhihong Li,
  • Dongfeng Li

摘要

Carbonization is one of the key processes for the preparation of polyacrylonitrile (PAN)-based carbon fibers. During the carbonization process, the pore structure within the fiber undergoes complex changes that can be monitored using small-angle X-ray scattering (SAXS). This paper introduces the carbonization mechanism of PAN-based fibers and the basic principles and methods of SAXS, reviews the application of SAXS in the study of the carbonization process of PAN pre-oxidized fibers, and looks forward to the prospect of using synchrotron radiation as the X-ray source for SAXS in situ study of the fiber carbonization process.