at Google ScholarTitle data
Yan, Wen ; Schmidt, Anne ; Dudczig, Steffen ; Wetzig, Tony ; Wei, Yaowu ; Li, Yawei ; Schafföner, Stefan ; Aneziris, Christos G.:
Wettability phenomena of molten steel in contact with alumina substrates with alumina and alumina-carbon coatings.
In: Journal of the European Ceramic Society.
Vol. 38
(2018)
Issue 4
.
- pp. 2164-2178.
ISSN 0955-2219
DOI: https://doi.org/10.1016/j.jeurceramsoc.2017.12.001
Abstract in another language
The effects of the surface roughness, carbon content and the additions of carbon nanotubes (CNT) and alumina nanosheets (ANS) on the wettability of molten steel on Al2O3 substrates with and without Al2O3(-C) coatings were investigated by the sessile drop wetting method, SEM and EDS, etc. At the beginning of the wetting experiment, the contact angle increased with an increasing surface roughness. With a longer wetting time, the interfacial reactions between the coatings and molten steel became more influential on the contact angles. When the coatings contained 30 wt% carbon, a new layer presumably consisting of hercynite (FeAl2O4) was formed at the substrate/steel interface stabilizing the contact angles with time. Moreover, compared to the coatings without nano-additives, the additions of CNT and ANS promoted the reactions at lower temperatures and resulted in a faster stabilization of the contact angles. Finally, the interfacial wetting and reaction mechanisms were proposed.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Ceramic Materials Faculties > Faculty of Engineering Science > Chair Ceramic Materials > Chair Ceramic Materials - Univ.-Prof. Dr.-Ing. Stefan Schafföner |
| Result of work at the UBT: | No |
| DDC Subjects: | 600 Technology, medicine, applied sciences 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 25 May 2023 09:25 |
| Last Modified: | 25 May 2023 09:25 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/76191 |