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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU151603" target="_blank" >RIV/00216305:26620/24:PU151603 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/24:00583142

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221923010403?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221923010403?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2023.12.057" target="_blank" >10.1016/j.jeurceramsoc.2023.12.057</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/GA20-20175S" target="_blank" >GA20-20175S: Nanokrystalická keramika z tetragonálního oxidu zirkoničitého s vysokou lomovou houževnatostí a pevností</a><br>

Návaznosti

—

Rok uplatnění

2024

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

44

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

3258-3266

Kód UT WoS článku

001168487100001

EID výsledku v databázi Scopus

2-s2.0-85181241614