PREPARATION OF AL2O3 NANOFIBERS BY THERMAL CALCINATION WITH LOW TEMPERATURE PLASMA PRE-TREATMENT

1 SUROVČÍK Juraj
Co-authors:
1,2 MEDVECKÁ Veronika 1,2 KOVÁČIK Dušan 2 KELAR TUČEKOVÁ Zlata 1 ROCH Tomáš 1 ZAHORANOVÁ Anna 1,2 ČERNÁK Mirko
Institutions:
1 Faculty of Mathematics, Physics and Informatics Comenius University in Bratislava, Bratislava, Slovakia, EU juraj.surovcik@fmph.uniba.sk
2 CEPLANT - Department of Physical Electronics, Faculty of Science, Masaryk University, Brno, Czech Republic, EU
Conference:
11th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 16th - 18th 2019
Proceedings:
Proceedings 11th International Conference on Nanomaterials - Research & Application
Pages:
663-667
ISBN:
978-80-87294-95-6
ISSN:
2694-930X
Published:
1st April 2020
Proceedings of the conference have been sent to Web of Science and Scopus for evaluation and potential indexing.
Metrics:
16 views / 2 downloads
Abstract

Inorganic submicron fibers (ISF) are nowadays widely studied material. Usually, they are produced by 2-step process. First, the composite metal-organic fibers are produced from polymer matrix and metallic precursor, typically alkoxides or salts by standard spinning techniques. After this, prepared composite fibers are thermally calcinated to remove polymer and form ceramic fibers. In this study, we used low temperature plasma generated at atmospheric pressure using Diffuse Coplanar Surface Barrier Discharge (DCSBD) to eliminate organics from the composite fibers before thermal treatment to reduce the time required for thermal calcination of Al2O3 fibers. This plasma pre-treatment enables using significantly higher heating rates compared to standard calcination without damaging the fiber structure.

Keywords: Plasma assisted calcination, inorganic fibers, DCSBD, alumina fibers
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