Journal article 807 views 137 downloads
Glassy carbon manufacture using rapid photonic curing
,
John Lau,
Arturas Adomkevicius ,
James McGettrick ,
Davide Deganello
Journal of Materials Science, Volume: 57, Issue: 1, Pages: 299 - 310
Swansea University Authors:
Brent de Boode, Christopher Phillips , John Lau, Arturas Adomkevicius , James McGettrick , Davide Deganello
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DOI (Published version): 10.1007/s10853-021-06648-w
Abstract
Photonic curing was explored as a rapid method for producing glassy carbon coatings, reducing processing time from ~ 20 h for conventional thermal processing down to ~ 1 min. A resole-type thermoset polymer resin coated on steel foil was used as a precursor, placed in a nitrogen purged container and...
| Published in: | Journal of Materials Science |
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| ISSN: | 0022-2461 1573-4803 |
| Published: |
Springer Science and Business Media LLC
2022
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa59137 |
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| Abstract: |
Photonic curing was explored as a rapid method for producing glassy carbon coatings, reducing processing time from ~ 20 h for conventional thermal processing down to ~ 1 min. A resole-type thermoset polymer resin coated on steel foil was used as a precursor, placed in a nitrogen purged container and exposed to high energy light (~ 27 J/cm2 per pulse for up to 20 pulses). Comparison samples were produced at 800 °C using a conventional nitrogen purged thermal route. For both photonic and conventionally produced coatings, Raman spectroscopy and primary peak XPS data showed sp2 bonded carbon, indicative of bulk glassy carbon. This transformation evolved with increasing number of pulses, and therefore amount of energy transferred to the coating. The produced coatings were resilient, highly smooth, with no evidence of surface defects. XPS analysis indicated greater sp3 content at the immediate surface (5–10 nm) for photonic cured carbon compared with thermally cured carbon, likely due to the local environment (temperature, atmosphere) around the surface during conversion. The ability to rapidly manufacture glassy carbon coatings provides new opportunities to expand the window of applications of glassy carbons in coatings towards large-scale high volume applications. |
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| College: |
Faculty of Science and Engineering |
| Funders: |
This research was financially supported by the EPSRC (Engineering and Physical Sciences Research
Council) (EP/N509553/1, EP/N013727/1). |
| Issue: |
1 |
| Start Page: |
299 |
| End Page: |
310 |