Crystallization kinetics and structural properties of nanocrystalline europium-yttrium-titanate (Eu0.5Y0.5)2Ti2O7

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F22%3A00555755" target="_blank" >RIV/67985831:_____/22:00555755 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985882:_____/22:00555755 RIV/70883521:28110/22:63552058 RIV/70883521:28610/22:63552058

Výsledek na webu

<a href="https://doi.org/10.1016/j.apt.2022.103501" target="_blank" >https://doi.org/10.1016/j.apt.2022.103501</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apt.2022.103501" target="_blank" >10.1016/j.apt.2022.103501</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Crystallization kinetics and structural properties of nanocrystalline europium-yttrium-titanate (Eu0.5Y0.5)2Ti2O7

Popis výsledku v původním jazyce

We present a versatile sol–gel approach for nanocrystalline (Eu0.5Y0.5)2Ti2O7. We determined the crystallization kinetics of the nucleation and the nucleation mechanism. The crystallization temperature was 1050.1 ± 0.8 K, and the activation energy of crystallization was 605 kJ mol−1. The nanocrystal growth started by homogenous nucleation with a constant nucleation rate, and the nanocrystal growth was limited by mass transfer through the phase boundary. The crystal structure of (Eu0.5Y0.5)2Ti2O7 was refined from the powder diffraction data using the Rietveld method, and the results were compared with the data recorded for the isostructural compounds, Eu2Ti2O7 and Y2Ti2O7. We proved the existence of a single phase of (Eu0.5Y0.5)2Ti2O7 and the regular distribution of Eu3+ and Y3+ ions inside the crystal lattice. The results provide key information regarding the crystallization properties and crystal structure of nanocrystalline (Eu0.5Y0.5)2Ti2O7. This knowledge is necessary for preparing pure nanocrystalline powders with tailored structural properties that are suitable for photonic applications

Název v anglickém jazyce

Crystallization kinetics and structural properties of nanocrystalline europium-yttrium-titanate (Eu0.5Y0.5)2Ti2O7

Popis výsledku anglicky

We present a versatile sol–gel approach for nanocrystalline (Eu0.5Y0.5)2Ti2O7. We determined the crystallization kinetics of the nucleation and the nucleation mechanism. The crystallization temperature was 1050.1 ± 0.8 K, and the activation energy of crystallization was 605 kJ mol−1. The nanocrystal growth started by homogenous nucleation with a constant nucleation rate, and the nanocrystal growth was limited by mass transfer through the phase boundary. The crystal structure of (Eu0.5Y0.5)2Ti2O7 was refined from the powder diffraction data using the Rietveld method, and the results were compared with the data recorded for the isostructural compounds, Eu2Ti2O7 and Y2Ti2O7. We proved the existence of a single phase of (Eu0.5Y0.5)2Ti2O7 and the regular distribution of Eu3+ and Y3+ ions inside the crystal lattice. The results provide key information regarding the crystallization properties and crystal structure of nanocrystalline (Eu0.5Y0.5)2Ti2O7. This knowledge is necessary for preparing pure nanocrystalline powders with tailored structural properties that are suitable for photonic applications

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GF21-45431L" target="_blank" >GF21-45431L: Nová nanostrukturovaná optická vlákna pro vláknové lasery pracující na dvou vlnových délkách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Advanced Powder Technology

ISSN

0921-8831

e-ISSN

1568-5527

Svazek periodika

33

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

103501

Kód UT WoS článku

000829861000012

EID výsledku v databázi Scopus

2-s2.0-85124799480