puffing

https://doi.org/10.1351/goldbook.P04941
An irreversible expansion of some carbon artifacts during graphitization heat treatment between 1650 and 2700 K.
Note: Puffing is caused by the release of heteroatoms, for instance sulfur atoms, from the coke in association with specific microstructural rearrangements.
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 502 [Terms] [Paper]
Citation: 'puffing' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.P04941 RIS BibTex EndNote
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