Y2O3 transparent nanoceramics via SPS and ZrO2-doping

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933380" target="_blank" >RIV/60461373:22310/25:43933380 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.oceram.2025.100784" target="_blank" >https://doi.org/10.1016/j.oceram.2025.100784</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.oceram.2025.100784" target="_blank" >10.1016/j.oceram.2025.100784</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Y2O3 transparent nanoceramics via SPS and ZrO2-doping

Popis výsledku v původním jazyce

The synergistic effect of spark plasma sintering (SPS) and 0–15 mol. % of ZrO₂ doping on the microstructure, mechanical and optical properties of Y&lt;inf&gt;2&lt;/inf&gt;O&lt;inf&gt;3&lt;/inf&gt; transparent ceramics was investigated. ZrO&lt;inf&gt;2&lt;/inf&gt;-doped Y&lt;inf&gt;2&lt;/inf&gt;O&lt;inf&gt;3&lt;/inf&gt; were obtained by SPS at 1300–1600 °C. Sintering at 1500 °C leads to defect-free, fully dense material with submicron grain size. The grain size of ceramics decreases from 5.2 to 0.11 µm for Y0Z and Y15Z, respectively, since ZrO&lt;inf&gt;2&lt;/inf&gt; acts as a grain growth inhibitor. The optimal concentration of ZrO&lt;inf&gt;2&lt;/inf&gt; to achieve the highest transparency of yttria is 3 mol. % (82.5 % for λ=5 μm). Increasing concentration of Zr4+ ions increases the number of interstitials O&lt;inf&gt;i&lt;/inf&gt;″, leading to a less efficient elimination of porosity. Vickers microhardness increased from 7.06 to 11.17 GPa with an increase in ZrO&lt;inf&gt;2&lt;/inf&gt; concentration, while opposite behavior was observed for fracture toughness. The influence of grain size and ZrO&lt;inf&gt;2&lt;/inf&gt; concentration on elastic modulus, shear modulus and Poisson&apos;s ratio was not revealed. © 2025 The Authors

Název v anglickém jazyce

Y2O3 transparent nanoceramics via SPS and ZrO2-doping

Popis výsledku anglicky

The synergistic effect of spark plasma sintering (SPS) and 0–15 mol. % of ZrO₂ doping on the microstructure, mechanical and optical properties of Y&lt;inf&gt;2&lt;/inf&gt;O&lt;inf&gt;3&lt;/inf&gt; transparent ceramics was investigated. ZrO&lt;inf&gt;2&lt;/inf&gt;-doped Y&lt;inf&gt;2&lt;/inf&gt;O&lt;inf&gt;3&lt;/inf&gt; were obtained by SPS at 1300–1600 °C. Sintering at 1500 °C leads to defect-free, fully dense material with submicron grain size. The grain size of ceramics decreases from 5.2 to 0.11 µm for Y0Z and Y15Z, respectively, since ZrO&lt;inf&gt;2&lt;/inf&gt; acts as a grain growth inhibitor. The optimal concentration of ZrO&lt;inf&gt;2&lt;/inf&gt; to achieve the highest transparency of yttria is 3 mol. % (82.5 % for λ=5 μm). Increasing concentration of Zr4+ ions increases the number of interstitials O&lt;inf&gt;i&lt;/inf&gt;″, leading to a less efficient elimination of porosity. Vickers microhardness increased from 7.06 to 11.17 GPa with an increase in ZrO&lt;inf&gt;2&lt;/inf&gt; concentration, while opposite behavior was observed for fracture toughness. The influence of grain size and ZrO&lt;inf&gt;2&lt;/inf&gt; concentration on elastic modulus, shear modulus and Poisson&apos;s ratio was not revealed. © 2025 The Authors

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Open Ceramics

ISSN

2666-5395

e-ISSN

2666-5395

Svazek periodika

22

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

100784

Kód UT WoS článku

001487758200002

EID výsledku v databázi Scopus

2-s2.0-105004072716