Zirconia spacer electrodes improve microstructural uniformity of flash sintered zirconia ceramics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0198140" target="_blank" >RIV/00216305:26620/26:0198140 - isvavai.cz</a>
Result on the web
<a href="https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijac.15037" target="_blank" >https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijac.15037</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/ijac.15037" target="_blank" >10.1111/ijac.15037</a>
Alternative languages
Result language
angličtina
Original language name
Zirconia spacer electrodes improve microstructural uniformity of flash sintered zirconia ceramics
Original language description
The sample-electrode contact often represents the most problematic part of the flash sintering circuit. We demonstrate that adding 3 mol% yttria-stabilized zirconia (3YSZ) spacer electrodes between a 3YSZ powder compact and steel electrodes positively impacts the final density and microstructure in AC flash sintering. The 3YSZ spacer electrodes, with intrinsically low thermal conductivity, were also heated by Joule heating alongside the 3YSZ sample, reducing the temperature gradient at the specimen-electrode interface and limiting heat loss from the specimen. A reference 3YSZ sample, which was sintered with stainless steel electrodes only, reached 98.2% of relative density with a notable grain size difference between the central (similar to 290 nm) and near-electrode parts (similar to 160 nm). The addition of 3YSZ spacer electrodes improved the final density to 98.9 % and reduced the grain size difference between the central (similar to 300 nm) and near-electrode parts (similar to 220 nm) almost by half compared to the reference sample.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
<a href="/en/project/GN22-30487O" target="_blank" >GN22-30487O: Ultra-fast sintering of advanced ceramic materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International journal of applied ceramic technology
ISSN
1546-542X
e-ISSN
1744-7402
Volume of the periodical
22
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
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UT code for WoS article
001390140800001
EID of the result in the Scopus database
2-s2.0-105001700012