2019
INVESTIGATION OF ATMOSPHERIC PRESSURE PLASMA SURFACE MODIFIED ALUMINIUM OXIDE NANOPOWDER BY THERMAL DESORPTION SPECTROSCOPY
DUGÁČEK, Ján; Lubomír PROKEŠ; Pavel SŤAHEL; Jozef RÁHEĽ; Martina ILČÍKOVÁ et. al.Základní údaje
Originální název
INVESTIGATION OF ATMOSPHERIC PRESSURE PLASMA SURFACE MODIFIED ALUMINIUM OXIDE NANOPOWDER BY THERMAL DESORPTION SPECTROSCOPY
Autoři
DUGÁČEK, Ján (703 Slovensko, garant, domácí); Lubomír PROKEŠ (203 Česká republika, domácí); Pavel SŤAHEL (203 Česká republika, domácí); Jozef RÁHEĽ (703 Slovensko, domácí) a Martina ILČÍKOVÁ (703 Slovensko, domácí)
Vydání
OSTRAVA, 10TH ANNIVERSARY INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION (NANOCON 2018 (R)), od s. 682-687, 6 s. 2019
Nakladatel
TANGER LTD
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
21000 2.10 Nano-technology
Utajení
není předmětem státního či obchodního tajemství
Forma vydání
elektronická verze "online"
Odkazy
Kód RIV
RIV/00216224:14310/19:00108249
Organizační jednotka
Přírodovědecká fakulta
ISBN
978-80-87294-89-5
UT WoS
000513131900117
EID Scopus
2-s2.0-85062977147
Klíčová slova anglicky
Alumina; sintering; electrophoretic method; plasma treatment; Thermal Desorption Spectroscopy
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 6. 4. 2020 12:58, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Aluminium oxide nanopowder is used for sintering into ceramic materials with attractive mechanical properties. The simplest and most common sintering methods are wet methods during which the nanopowder is dispersed in a liquid. High surface energy increases the quality of the sintered material. Atmospheric pressure plasma is known improve its wetting properties and the quality of ceramic sintered using the electrophoretic method. However, polarisation abnormalities during the deposition suggested an addition of negatively charged species on the powder's surface during the treatment, probably NOX molecules. To verify this hypothesis, we have used the Thermal Desorption Spectroscopy on the treated and the untreated nanopowder to study the changes that occurred during the treatment. We have found that a large number of additional NO, NO2, CO2 and hydroxyl were attached to the surface, at least some of them were grafted rather than adsorbed. This provided additional evidence that the abnormalities were caused by NOX molecules on the surface.
Návaznosti
ED2.1.00/03.0086, projekt VaV |
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GA17-05620S, projekt VaV |
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LO1411, projekt VaV |
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