Phase equilibria modelling in Bi-Sr-Co-O system Towards crystal growth and melt-assisted material processing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43913505" target="_blank" >RIV/60461373:22310/18:43913505 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221917305745" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221917305745</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/Ljeurceramsoc.2017.08.035" target="_blank" >10.1016/Ljeurceramsoc.2017.08.035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Phase equilibria modelling in Bi-Sr-Co-O system Towards crystal growth and melt-assisted material processing

Popis výsledku v původním jazyce

In this contribution, high-temperature phase equilibria of the partly open Bi-Sr-Co-(O) system with oxygen content given by its activity in the surrounding atmosphere, were modelled based on the experimental phase diagram determined previously. For the assessment, we also used the previously reported thermodynamic data and phase equilibria for the quasibinary Bi-Co-(O), Sr-Co-(O) and Bi-Sr-(O) subsystems as well as the thermodynamic data of quaternary phases obtained from calorimetry and simultaneous thermal analysis. Namely, the oxide melt was described based on the Redlich-Kister parameters of the corresponding quasibinary systems and the solid oxides were considered as stoichiometric. Their heat capacity and entropy were determined from calorimetry and the enthalpy of formation was refined to reproduce their melting behaviour. The constructed phase diagram focused on solid-liquid equilibria is particularly important for designing the experiments of single crystal growth and melt assisted material processing of these highly significant cobaltites.

Název v anglickém jazyce

Phase equilibria modelling in Bi-Sr-Co-O system Towards crystal growth and melt-assisted material processing

Popis výsledku anglicky

In this contribution, high-temperature phase equilibria of the partly open Bi-Sr-Co-(O) system with oxygen content given by its activity in the surrounding atmosphere, were modelled based on the experimental phase diagram determined previously. For the assessment, we also used the previously reported thermodynamic data and phase equilibria for the quasibinary Bi-Co-(O), Sr-Co-(O) and Bi-Sr-(O) subsystems as well as the thermodynamic data of quaternary phases obtained from calorimetry and simultaneous thermal analysis. Namely, the oxide melt was described based on the Redlich-Kister parameters of the corresponding quasibinary systems and the solid oxides were considered as stoichiometric. Their heat capacity and entropy were determined from calorimetry and the enthalpy of formation was refined to reproduce their melting behaviour. The constructed phase diagram focused on solid-liquid equilibria is particularly important for designing the experiments of single crystal growth and melt assisted material processing of these highly significant cobaltites.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA17-13161S" target="_blank" >GA17-13161S: Vliv nestechiometrie a nanostrukturování na materiálové vlastnosti oxidů kovů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

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

—

Svazek periodika

38

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

5

Strana od-do

131-135

Kód UT WoS článku

000414117500014

EID výsledku v databázi Scopus

2-s2.0-85028697500