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@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 = {http://dx.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://dx.doi.org/10.1016/j.jeurceramsoc.2018.11.022.
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