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Description:

The tensile properties of polyacrylonitrile (PAN)-based and pitch-based single carbon fibers were assessed using Raman scattering. Parameters and ratios related to Raman scattering and stress measurement for the G- and D-bands were analyzed. These include peak values of Raman shifts (RG, RD), full width at half maximum (FWHMG, FWHMD), peak value slopes (|AG|, |AD|), peak value intercepts (BG, BD), intensity ratio (ID/IG), peak value ratio (RD/RG), full width at half maximum ratio (FWHMD/FWHMG), slope ratio (AD/AG), and intercept ratio (BD/BG). These parameters and ratios were determined by analyzing the PAN-based and pitch-based carbon fibers and were correlated to the tensile modulus (E), interlayer spacing (d002), lattice spacing (d10), and crystalline size (Lc and La). In addition, a linear relationship was identified between the Raman scattering, stress measurement parameters, ratios and E, d002, d10, as well as between the Raman scattering, stress measurement parameters, ratios and La and LC on the log–log scale.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: carbon fiber, Raman scattering, Raman stress measurement, tensile test

Date published: 2024-10-10

Publisher: MDPI AG

Journal:

• Fibers (ISSN: 20796439) vol. 12 issue. 10 88

Funding:

• New Energy and Industrial Technology Development Organization
• Acquisition, Technology & Logistics Agency JPJ004596

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.3390/fib12100088

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Updated at: 2024-10-13 08:30:26 +0900

Published on MDR: 2024-10-13 08:30:26 +0900