Improved microstructure of alumina ceramics prepared from DBD
plasma activated powders

J 2019

Improved microstructure of alumina ceramics prepared from DBD plasma activated powders

POUCHLÝ, Václav; Jozef RÁHEĽ; Tomáš SPUSTA; Martina ILČÍKOVÁ; David PAVLIŇÁK et al.

Základní údaje

Originální název

Improved microstructure of alumina ceramics prepared from DBD plasma activated powders

Autoři

POUCHLÝ, Václav; Jozef RÁHEĽ; Tomáš SPUSTA; Martina ILČÍKOVÁ; David PAVLIŇÁK; Tomáš MORÁVEK a Karel MACA

Vydání

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, OXFORD, ELSEVIER SCI LTD, 2019, 0955-2219

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

20504 Ceramics

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.495

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/19:00107189

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Alumina; Slip casting; Sintering; Grain size; DBD Plasma treatment

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 1. 4. 2020 15:30, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Submicron Al2O3 powders were activated by Diffuse Coplanar Surface Barrier Discharge (DCSBD) plasma. The influence of the plasma treatment on the powder properties and their impact on the microstructure of dry and wet shaped ceramics were investigated. Raman and FTIR analyses of treated powders showed a substantial increase of the powder’s surface hydroxylation, surface cleaning, and the presence of adsorbed NOx originating from the DCSBD. Sintering of the dry shaped plasma treated powders did not influence sintering behavior. On the other hand, the plasma treated powder was able to form stable water suspension without any chemical stabilization aid. Slip cast samples exhibited finer pore size distribution, a higher sinterability, and a finer final microstructure. The grain size of slip casted plasma treated powder was reduced by a factor of 1.7, which facilitated a grain size of 0.68 um at the relative density of 99.54 % t.d. obtained by pressure-less sintering.

Návaznosti

ED2.1.00/03.0086, projekt VaV

Název: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

GA17-05620S, projekt VaV

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

Investor: Grantová agentura ČR, Fyzikální aktivace povrchu keramických částic jako nástroj pro zlepšení vlastností jemnozrnné pokročilé keramiky

LO1411, projekt VaV

Název: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Akronym: CEPLANT plus)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

LQ1601, projekt VaV

Název: CEITEC 2020 (Akronym: CEITEC2020)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020

Citovat

POUCHLÝ, Václav; Jozef RÁHEĽ; Tomáš SPUSTA; Martina ILČÍKOVÁ; David PAVLIŇÁK; Tomáš MORÁVEK a Karel MACA. Improved microstructure of alumina ceramics prepared from DBD plasma activated powders. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. OXFORD: ELSEVIER SCI LTD, 2019, roč. 39, č. 4, s. 1297-1303. ISSN 0955-2219. Dostupné z: https://doi.org/10.1016/j.jeurceramsoc.2018.11.022.

@article{1468236,
   author = {Pouchlý, Václav and Ráheľ, Jozef and Spusta, Tomáš and Ilčíková, Martina and Pavliňák, David and Morávek, Tomáš and Maca, Karel},
   article_location = {OXFORD},
   article_number = {4},
   doi = {https://doi.org/10.1016/j.jeurceramsoc.2018.11.022},
   keywords = {Alumina; Slip casting; Sintering; Grain size; DBD Plasma treatment},
   language = {eng},
   issn = {0955-2219},
   journal = {JOURNAL OF THE EUROPEAN CERAMIC SOCIETY},
   title = {Improved microstructure of alumina ceramics prepared from DBD plasma activated powders},
   url = {https://www.sciencedirect.com/science/article/pii/S0955221918306873},
   volume = {39},
   year = {2019}
}

TY  - JOUR
ID  - 1468236
AU  - Pouchlý, Václav - Ráheľ, Jozef - Spusta, Tomáš - Ilčíková, Martina - Pavliňák, David - Morávek, Tomáš - Maca, Karel
PY  - 2019
TI  - Improved microstructure of alumina ceramics prepared from DBD plasma activated powders
JF  - JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
VL  - 39
IS  - 4
SP  - 1297-1303
EP  - 1297-1303
PB  - ELSEVIER SCI LTD
SN  - 09552219
KW  - Alumina
KW  - Slip casting
KW  - Sintering
KW  - Grain size
KW  - DBD Plasma treatment
UR  - https://www.sciencedirect.com/science/article/pii/S0955221918306873
L2  - https://www.sciencedirect.com/science/article/pii/S0955221918306873
N2  - Submicron Al2O3 powders were activated by Diffuse Coplanar Surface Barrier Discharge (DCSBD) plasma. The influence of the plasma treatment on the powder properties and their impact on the microstructure of dry and wet shaped ceramics were investigated. Raman and FTIR analyses of treated powders showed a substantial increase of the powder’s surface hydroxylation, surface cleaning, and the presence of adsorbed NOx originating from the DCSBD. Sintering of the dry shaped plasma treated powders did not influence sintering behavior. On the other hand, the plasma treated powder was able to form stable water suspension without any chemical stabilization aid. Slip cast samples exhibited finer pore size distribution, a higher sinterability, and a finer final microstructure. The grain size of slip casted plasma treated powder was reduced by a factor of 1.7, which facilitated a grain size of 0.68 um at the relative density of 99.54 % t.d. obtained by pressure-less sintering.
ER  -

POUCHLÝ, Václav; Jozef RÁHEĽ; Tomáš SPUSTA; Martina ILČÍKOVÁ; David PAVLIŇÁK; Tomáš MORÁVEK a Karel MACA. Improved microstructure of alumina ceramics prepared from DBD plasma activated powders. \textit{JOURNAL OF THE EUROPEAN CERAMIC SOCIETY}. OXFORD: ELSEVIER SCI LTD, 2019, roč.~39, č.~4, s.~1297-1303. ISSN~0955-2219. Dostupné z: https://doi.org/10.1016/j.jeurceramsoc.2018.11.022.

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