Title: mesophase pitch-based carbon fibres Long Title: IUPAC Gold Book - mesophase pitch-based carbon fibres DOI: 10.1351/goldbook.M03851 Status: current Definition Mesophase pitch-based carbon fibres (MPP-based carbon fibres) are carbon fibres obtained from mesogenic pitch after it has been transformed into mesophase pitch (MPP) at least during the process of spinning, and after the spun mesophase pitch fibres have been made non-fusible (stabilized) and carbonized. Related Terms - carbon fibres: https://goldbook.iupac.org//terms/view/C00831 - mesogenic pitch: https://goldbook.iupac.org//terms/view/M03841 - mesophase pitch: https://goldbook.iupac.org//terms/view/M03850 Source - PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 496 (https://doi.org/10.1351/pac199567030473) Other Outputs - html: https://goldbook.iupac.org/terms/view/M03851/html - json: https://goldbook.iupac.org/terms/view/M03851/json - xml: https://goldbook.iupac.org/terms/view/M03851/xml Citation: Citation: 'mesophase pitch-based carbon fibres' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.M03851 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-04-19T02:49:11+00:00