Publication detail
Pore coalescence as an inherent problem in the sintering of zirconia nanoparticles
TRUNEC, M. ŠŤASTNÝ, P. ŠIŠKA VIRÁGOVÁ, E. SOBOLA, D.
Original Title
Pore coalescence as an inherent problem in the sintering of zirconia nanoparticles
Type
journal article in Web of Science
Language
English
Original Abstract
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.
Keywords
Zirconia; Nanoparticles; Sintering; Grain growth; Pore coalescence
Authors
TRUNEC, M.; ŠŤASTNÝ, P.; ŠIŠKA VIRÁGOVÁ, E.; SOBOLA, D.
Released
1. 7. 2025
Publisher
ELSEVIER SCI LTD
Location
London
ISBN
1873-619X
Periodical
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Year of study
45
Number
8
State
United Kingdom of Great Britain and Northern Ireland
Pages count
7
URL
BibTex
@article{BUT197812,
author="Martin {Trunec} and Přemysl {Šťastný} and Dinara {Sobola} and Eliška {Šiška Virágová}",
title="Pore coalescence as an inherent problem in the sintering of zirconia nanoparticles",
journal="JOURNAL OF THE EUROPEAN CERAMIC SOCIETY",
year="2025",
volume="45",
number="8",
pages="7",
doi="10.1016/j.jeurceramsoc.2025.117272",
issn="1873-619X",
url="https://www.sciencedirect.com/science/article/pii/S0955221925000925?via%3Dihub"
}