Detail publikace

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

TRUNEC, M. ŠŤASTNÝ, P. ŠIŠKA VIRÁGOVÁ, E. SOBOLA, D.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Zirconia; Nanoparticles; Sintering; Grain growth; Pore coalescence

Autoři

TRUNEC, M.; ŠŤASTNÝ, P.; ŠIŠKA VIRÁGOVÁ, E.; SOBOLA, D.

Vydáno

1. 7. 2025

Nakladatel

ELSEVIER SCI LTD

Místo

London

ISSN

1873-619X

Periodikum

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

Ročník

45

Číslo

8

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

7

URL

https://www.sciencedirect.com/science/article/pii/S0955221925000925?via%3Dihub

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"
}