Ageing effect of DBD activated ceramic powders: the impact of
storage humidity on the electrophoretic deposition rate

a 2019

Ageing effect of DBD activated ceramic powders: the impact of storage humidity on the electrophoretic deposition rate

ILČÍKOVÁ, Martina, Jozef RÁHEĽ and Lubomír PROKEŠ

Basic information

Original name

Ageing effect of DBD activated ceramic powders: the impact of storage humidity on the electrophoretic deposition rate

Authors

ILČÍKOVÁ, Martina, Jozef RÁHEĽ and Lubomír PROKEŠ

Edition

APMAS2019 (9th International Advances in Applied Physics & Materials Science Congress & Exhibition), 2019

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

20504 Ceramics

Country of publisher

Turkey

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Organization unit

Faculty of Science

Keywords in English

electrophoretic deposition; Al2O3 powders; dielectric barrier discharge; ageing effect

Změněno: 14/1/2020 15:48, doc. RNDr. Jozef Ráheľ, PhD.

Abstract

V originále

Electrophoretic deposition (EPD) of plasma pre-treated Al2O3 powders results in ceramic layers of substantially improved deposit homogeneity. To evaluate the practical applicability of this phenomenon, we report on the magnitude and dynamics of undesired gradual deterioration on plasma treatment – the ageing effect. Powder samples were treated by diffuse coplanar dielectric barrier discharge (DBD) and sequentially evaluated for their EPD performance for the time span of 30 days. Two sets of powder samples were evaluated. The first was stored in arid environment of 23% RH, the second in humid air of 86% RH. The storage in arid environment resulted in a slow but gradual decline of deposition rate. However, the uniformity of deposited layers remained unaffected. Samples stored in humid environment exhibited a substantially more complex behavior. Already after one week the effect of plasma treatment had disappeared, and the deposition polarity had to be changed from anodic to cathodic. Afterwards gradual increase of deposition rate was observed until the final recurrent decline at fourth week. The results point out the importance of water molecules controlled secondary processes on the treated powder surface.

Links

CZ.1.05/2.1.00/03.0086, interní kód MU

Name: CEPLANT - Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

Investor: Ministry of Education, Youth and Sports of the CR, 2.1 Regional R&D Centres

GA17-05620S, research and development project

Name: Fyzikální aktivace povrchu keramických částic jako nástroj pro zlepšení vlastností jemnozrnné pokročilé keramiky (Acronym: KeramAktiv)

Investor: Czech Science Foundation

LO1411, research and development project

Name: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

ILČÍKOVÁ, Martina, Jozef RÁHEĽ and Lubomír PROKEŠ. Ageing effect of DBD activated ceramic powders: the impact of storage humidity on the electrophoretic deposition rate. In APMAS2019 (9th International Advances in Applied Physics & Materials Science Congress & Exhibition). 2019.

@proceedings{1574487,
   author = {Ilčíková, Martina and Ráheľ, Jozef and Prokeš, Lubomír},
   booktitle = {APMAS2019 (9th International Advances in Applied Physics & Materials Science Congress & Exhibition)},
   keywords = {electrophoretic deposition; Al2O3 powders; dielectric barrier discharge; ageing effect},
   language = {eng},
   title = {Ageing effect of DBD activated ceramic powders: the impact of storage humidity on the electrophoretic deposition rate},
   url = {http://www.apmascongress.org/images/files/apmas2019_abstract_book.pdf},
   year = {2019}
}

TY  - CONF
ID  - 1574487
AU  - Ilčíková, Martina - Ráheľ, Jozef - Prokeš, Lubomír
PY  - 2019
TI  - Ageing effect of DBD activated ceramic powders: the impact of storage humidity on the electrophoretic deposition rate
KW  - electrophoretic deposition
KW  - Al2O3 powders
KW  - dielectric barrier discharge
KW  - ageing effect
UR  - http://www.apmascongress.org/images/files/apmas2019_abstract_book.pdf
N2  - Electrophoretic deposition (EPD) of plasma pre-treated Al2O3 powders results in ceramic layers of substantially improved deposit homogeneity. To evaluate the practical applicability of this phenomenon, we report on the magnitude and dynamics of undesired gradual deterioration on plasma treatment – the ageing effect. Powder samples were treated by diffuse coplanar dielectric barrier discharge (DBD) and sequentially evaluated for their EPD performance for the time span of 30 days. Two sets of powder samples were evaluated. The first was stored in arid environment of 23% RH, the second in humid air of 86% RH. The storage in arid environment resulted in a slow but gradual decline of deposition rate. However, the uniformity of deposited layers remained unaffected. Samples stored in humid environment exhibited a substantially more complex behavior. Already after one week the effect of plasma treatment had disappeared, and the deposition polarity had to be changed from anodic to cathodic. Afterwards gradual increase of deposition rate was observed until the final recurrent decline at fourth week. The results point out the importance of water molecules controlled secondary processes on the treated powder surface.
ER  -

ILČÍKOVÁ, Martina, Jozef RÁHEĽ and Lubomír PROKEŠ. Ageing effect of DBD activated ceramic powders: the impact of storage humidity on the electrophoretic deposition rate. In \textit{APMAS2019 (9th International Advances in Applied Physics \&{} Materials Science Congress \&{} Exhibition)}. 2019.

Detailed Information on Publication Record