Pore coalescence as an inherent problem in the sintering of zirconia nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F25%3APU156354" target="_blank" >RIV/00216305:26620/25:PU156354 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221925000925?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221925000925?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2025.117272" target="_blank" >10.1016/j.jeurceramsoc.2025.117272</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pore coalescence as an inherent problem in the sintering of zirconia nanoparticles

Popis výsledku v původním jazyce

This article investigates the densification behaviour of zirconia nanoparticle compacts sintered at high temperatures. It was shown that zirconia nanoparticle compacts exhibited pore growth and related density decrease after sintering at temperatures above 1100 degrees C. Extensive analytical testing was performed to elucidate this behaviour. The de-densification effect was explained as pore coalescence and swelling. Intensive grain growth at high sintering temperatures induced coalescence of residual pores that remained in the dense structure. The overpressure of a non-diffusing gas entrapped in coalesced pores resulted in their expansion and ceramics swelling. The ceramics swelling was modelled and compared with experimental data. This de-densification behaviour seems to be inherent to all nanozirconia compacts accompanied by large grain coarsening in a dense structure.

Název v anglickém jazyce

Pore coalescence as an inherent problem in the sintering of zirconia nanoparticles

Popis výsledku anglicky

This article investigates the densification behaviour of zirconia nanoparticle compacts sintered at high temperatures. It was shown that zirconia nanoparticle compacts exhibited pore growth and related density decrease after sintering at temperatures above 1100 degrees C. Extensive analytical testing was performed to elucidate this behaviour. The de-densification effect was explained as pore coalescence and swelling. Intensive grain growth at high sintering temperatures induced coalescence of residual pores that remained in the dense structure. The overpressure of a non-diffusing gas entrapped in coalesced pores resulted in their expansion and ceramics swelling. The ceramics swelling was modelled and compared with experimental data. This de-densification behaviour seems to be inherent to all nanozirconia compacts accompanied by large grain coarsening in a dense structure.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/LM2023051" target="_blank" >LM2023051: Výzkumná infrastruktura CzechNanoLab</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

ISSN

0955-2219

e-ISSN

1873-619X

Svazek periodika

45

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

„“-„“

Kód UT WoS článku

001427877200001

EID výsledku v databázi Scopus

2-s2.0-85217845618