Processing of zirconia nanoceramics from a coarse powder

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F15%3APU112286" target="_blank" >RIV/00216305:26620/15:PU112286 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2014.10.022" target="_blank" >http://dx.doi.org/10.1016/j.jeurceramsoc.2014.10.022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2014.10.022" target="_blank" >10.1016/j.jeurceramsoc.2014.10.022</a>

Result language

angličtina

Original language name

Processing of zirconia nanoceramics from a coarse powder

Original language description

We have merged the benefits of coarse-grained and nanocrystalline powders by the consolidation and sintering of coarse, yet nanostructured,mesoporous Y-TZP powder. The powder was composed of loosely aggregated, nanoscale crystallites, which can be seen as secondary particles oragglomerates. Their homogeneous, defect-free packing proved to be a viable pathway for the processing of zirconia nanoceramics. The powderconsolidation yielded homogeneous green bodies with hierarchical heterogeneities in terms of intra- and inter-particle pore packing. The hierarchicalheterogeneities had a pronounced effect on the densification and grain growth. The intra-particle pore coalescence along with a frozen inter-particle porosity, prolonged the pore-pinning effect, separating the densification and grain-growth mechanisms. Increased heating rates promoted thegrain growth and densification via a competitive mechanism of primary crystallite ordered coalescence, while by applying pressure, the crystallitegrowth was completely prevented, making such a coarse powder suitable for the fabrication of zirconia nanoceramics.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20504 - Ceramics

Project

<a href="/en/project/GP13-08717P" target="_blank" >GP13-08717P: Effect of electro-magnetic field on sintering of advanced ceramic materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

1873-619X

Volume of the periodical

35

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

1285-1295

UT code for WoS article

000348084300016

EID of the result in the Scopus database

2-s2.0-84920533496