Microwave sintering of tin oxide and zinc oxide mixtures – Formation of Zn2SnO4 spinel phase, densification and evolution of microstructure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43931004" target="_blank" >RIV/60461373:22310/25:43931004 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0272884225005528?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0272884225005528?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2025.01.495" target="_blank" >10.1016/j.ceramint.2025.01.495</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microwave sintering of tin oxide and zinc oxide mixtures – Formation of Zn2SnO4 spinel phase, densification and evolution of microstructure

Popis výsledku v původním jazyce

In this work SnO2-ZnO based ceramics were prepared and sintered using both microwave (MW) and conventional (CV) heating. Five different batches of samples were prepared – pure SnO2, ZnO and different weight ratios of these oxides (S80-Z20, S50-Z50, S20-Z80). Microwave sintering was conducted in a multimode cavity at 2.45 GHz in temperature range 900–1400 °C, with different heating rates 50–100 °C/min and dwell times 0–15 min. The changes of linear shrinkage, bulk density, open porosity and phase composition are discussed with respect to the heating rate, dwell time, sintering temperature and type of heating (MW vs. CV). During the MW heating results show changes of the dielectric loss with higher temperature in all prepared samples. MW sintering of composites significantly improved densification compared to CV sintering, due to favorable MW/material interactions. The formation of the Zn₂SnO₄ spinel phase was also observed, with its content varying depending on the initial composition.

Název v anglickém jazyce

Microwave sintering of tin oxide and zinc oxide mixtures – Formation of Zn2SnO4 spinel phase, densification and evolution of microstructure

Popis výsledku anglicky

In this work SnO2-ZnO based ceramics were prepared and sintered using both microwave (MW) and conventional (CV) heating. Five different batches of samples were prepared – pure SnO2, ZnO and different weight ratios of these oxides (S80-Z20, S50-Z50, S20-Z80). Microwave sintering was conducted in a multimode cavity at 2.45 GHz in temperature range 900–1400 °C, with different heating rates 50–100 °C/min and dwell times 0–15 min. The changes of linear shrinkage, bulk density, open porosity and phase composition are discussed with respect to the heating rate, dwell time, sintering temperature and type of heating (MW vs. CV). During the MW heating results show changes of the dielectric loss with higher temperature in all prepared samples. MW sintering of composites significantly improved densification compared to CV sintering, due to favorable MW/material interactions. The formation of the Zn₂SnO₄ spinel phase was also observed, with its content varying depending on the initial composition.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

1873-3956

Svazek periodika

51

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

11

Strana od-do

17215-17225

Kód UT WoS článku

001502696700003

EID výsledku v databázi Scopus

2-s2.0-85216967119