Publication detail

2Y-TZP ceramics with high strength and toughness by optimizing the microstructure

TRUNEC, M. ŠŤASTNÝ, P. KAŠTYL, J. ROUPCOVÁ, P. CHLUP, Z.

Original Title

2Y-TZP ceramics with high strength and toughness by optimizing the microstructure

Type

journal article in Web of Science

Language

English

Original Abstract

Low-yttria doped zirconia polycrystals (Y-TZP) have recently emerged as new fine-grained zirconia ceramics exhibiting a promising combination of high fracture toughness and strength. In this investigation, we optimized the strength and fracture toughness of 2Y-TZP ceramics prepared by gelcasting and pressureless sintering. The 2Y-TZP ceramics with optimized processing reached a mean biaxial strength of 1070 MPa, similar to the strength obtained for the standard 3Y-TZP ceramics. However, a higher transformability of tetragonal grains in 2Y-TZP ceramics resulted in a stronger transformation toughening effect compared with 3Y-TZP ceramics. The fracture toughness obtained for 2Y-TZP exceeded that of 3Y-TZP (7.7 vs. 5.2 MPa m0.5). The differences in the microstructure and toughening mechanism between 2Y-TZP and 3Y-TZP were described, and the potential benefits of the 2Y-TZP were discussed.

Keywords

Zirconia; Gelcasting; Microstructure; Transformation toughening; Mechanical properties

Authors

TRUNEC, M.; ŠŤASTNÝ, P.; KAŠTYL, J.; ROUPCOVÁ, P.; CHLUP, Z.

Released

1. 5. 2024

Publisher

ELSEVIER SCI LTD

Location

London

ISBN

1873-619X

Periodical

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

Year of study

44

Number

5

State

United Kingdom of Great Britain and Northern Ireland

Pages from

3258

Pages to

3266

Pages count

9

URL

https://www.sciencedirect.com/science/article/pii/S0955221923010403?via%3Dihub

BibTex

@article{BUT188955,
  author="Martin {Trunec} and Přemysl {Šťastný} and Jaroslav {Kaštyl} and Pavla {Roupcová} and Zdeněk {Chlup}",
  title="2Y-TZP ceramics with high strength and toughness by optimizing the microstructure",
  journal="JOURNAL OF THE EUROPEAN CERAMIC SOCIETY",
  year="2024",
  volume="44",
  number="5",
  pages="3258--3266",
  doi="10.1016/j.jeurceramsoc.2023.12.057",
  issn="1873-619X",
  url="https://www.sciencedirect.com/science/article/pii/S0955221923010403?via%3Dihub"
}