Calculations of Avrami exponent and applicability of Johnson-Mehl-Avrami model on crystallization in Er:LiY(PO3)4 phosphate glass

Kód výsledku v IS VaVaI

RIV/68378271:_____/20:00536253 - isvavai.cz

Výsledek na webu

https://doi.org/10.1007/s10973-019-09068-w

DOI - Digital Object Identifier

10.1007/s10973-019-09068-w

Jazyk výsledku

angličtina

Název v původním jazyce

Calculations of Avrami exponent and applicability of Johnson-Mehl-Avrami model on crystallization in Er:LiY(PO3)4 phosphate glass

Popis výsledku v původním jazyce

Preparation and thermal properties of Er3+- doped lithium–yttrium meta-phosphate glasses with a nominal composition of Er:LiY(PO3)4 were studied as a new scintillating material for neutron detection. The glassy Er:LiY(PO3)4 ingots 10 × 10 × 25 mm3 in size were prepared by quenching of the molten mixture of the starting lithium carbonate, yttrium phosphate, and phosphorus oxide in stoichiometric relations. Crystallization kinetics was experimentally studied on powder samples with particle sizes ranging from 96 to 106 μm, 200 to 212 μm, and on bulk glassy samples using the non-isothermal differential scanning calorimetry. The evaluation of the measured data was performed using the Johnson–Mehl–Avrami, Matusita and Augis–Bennett models, and the y(α) and z(α) functions. Obtained kinetic parameters were used for reconstruction of the crystallization peaks using various models and compared with actual experimental data.

Název v anglickém jazyce

Calculations of Avrami exponent and applicability of Johnson-Mehl-Avrami model on crystallization in Er:LiY(PO3)4 phosphate glass

Popis výsledku anglicky

Preparation and thermal properties of Er3+- doped lithium–yttrium meta-phosphate glasses with a nominal composition of Er:LiY(PO3)4 were studied as a new scintillating material for neutron detection. The glassy Er:LiY(PO3)4 ingots 10 × 10 × 25 mm3 in size were prepared by quenching of the molten mixture of the starting lithium carbonate, yttrium phosphate, and phosphorus oxide in stoichiometric relations. Crystallization kinetics was experimentally studied on powder samples with particle sizes ranging from 96 to 106 μm, 200 to 212 μm, and on bulk glassy samples using the non-isothermal differential scanning calorimetry. The evaluation of the measured data was performed using the Johnson–Mehl–Avrami, Matusita and Augis–Bennett models, and the y(α) and z(α) functions. Obtained kinetic parameters were used for reconstruction of the crystallization peaks using various models and compared with actual experimental data.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

—

Svazek periodika

141

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

9

Strana od-do

1091-1099

Kód UT WoS článku

000557765400002

EID výsledku v databázi Scopus

2-s2.0-85075967915