Transparent alumina ceramics: Effect of standard and plasma generated stabilizing approaches in colloidal processing
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU133531" target="_blank" >RIV/00216305:26620/19:PU133531 - isvavai.cz</a>
Výsledek na webu
<a href="https://ceramics.onlinelibrary.wiley.com/doi/full/10.1111/jace.16630" target="_blank" >https://ceramics.onlinelibrary.wiley.com/doi/full/10.1111/jace.16630</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jace.16630" target="_blank" >10.1111/jace.16630</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Transparent alumina ceramics: Effect of standard and plasma generated stabilizing approaches in colloidal processing
Popis výsledku v původním jazyce
The study is focused on an optimization of the slip‐casting process used for the fabrication of the transparent/translucent alumina ceramics; more precisely, on specifying the most appropriate way to stabilize the cast alumina suspensions. An innovative method of the particles’ stabilization by plasma treatment was compared with the classical electrostatic and the most frequently used electrosteric approach. Properties of green bodies (pore size distribution, density) and sintered samples (density, mean grain size, real in‐line transmittance) were measured in term to evaluate the impact of the individual stabilization mechanism on the final properties of the transparent/translucent ceramics. The results showed that all tested approaches enable the preparation of the transparent/translucent alumina ceramics by Hot Isostatic Pressing. Ceramics prepared from the plasma treated as well as the electrostatically stabilized powders exhibited narrower pore size distribution, higher density, and lower mean grain size in comparison to ceramics fabricated from only electrosterically stabilized powders. Despite these promising properties the plasma‐treated samples resulted in an unexpectedly low RIT of 36% caused by the presence of thin cracks. However, the electrostatically stabilized samples achieved the highest RIT value of 57%.
Název v anglickém jazyce
Transparent alumina ceramics: Effect of standard and plasma generated stabilizing approaches in colloidal processing
Popis výsledku anglicky
The study is focused on an optimization of the slip‐casting process used for the fabrication of the transparent/translucent alumina ceramics; more precisely, on specifying the most appropriate way to stabilize the cast alumina suspensions. An innovative method of the particles’ stabilization by plasma treatment was compared with the classical electrostatic and the most frequently used electrosteric approach. Properties of green bodies (pore size distribution, density) and sintered samples (density, mean grain size, real in‐line transmittance) were measured in term to evaluate the impact of the individual stabilization mechanism on the final properties of the transparent/translucent ceramics. The results showed that all tested approaches enable the preparation of the transparent/translucent alumina ceramics by Hot Isostatic Pressing. Ceramics prepared from the plasma treated as well as the electrostatically stabilized powders exhibited narrower pore size distribution, higher density, and lower mean grain size in comparison to ceramics fabricated from only electrosterically stabilized powders. Despite these promising properties the plasma‐treated samples resulted in an unexpectedly low RIT of 36% caused by the presence of thin cracks. However, the electrostatically stabilized samples achieved the highest RIT value of 57%.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
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OECD FORD obor
20504 - Ceramics
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN
0002-7820
e-ISSN
1551-2916
Svazek periodika
102
Číslo periodika v rámci svazku
12
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
8
Strana od-do
7137-7144
Kód UT WoS článku
000488744700010
EID výsledku v databázi Scopus
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