Thermal properties and homogenity range of Bi24 xCo2-xO39 ceramics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F13%3A43895433" target="_blank" >RIV/60461373:22340/13:43895433 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/13:43895433

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermal properties and homogenity range of Bi24 xCo2-xO39 ceramics

Popis výsledku v původním jazyce

Samples with different Bi2O3/Co2O3, ratio were prepared by ceramic route. Based on the results of DTA, XRD and SEM - EDX a section of phase diagram of the Bi-Co-O diagram in air atmosphere was calculated using the FactSage software. The sillenite structure of Bi24+xCo2-xO39 was confirmed and described. The Rietveld analysis confirmed SEM - EDX results. The heat capacity and enthalpy increments of Bi24Co2O39 were measured by differential scanning calorimetry (DSC) from 258 K to 355 K and by the drop calorimetry from 573 K to 973 K Above room temperature the temperature dependence of the molar heat capacity in the form C-pm = (1467.87 + 0.299410 . T - 15888378 . T-2) J K-1 mol(-1) was derived by least-squares method from the experimental data

Název v anglickém jazyce

Thermal properties and homogenity range of Bi24 xCo2-xO39 ceramics

Popis výsledku anglicky

Samples with different Bi2O3/Co2O3, ratio were prepared by ceramic route. Based on the results of DTA, XRD and SEM - EDX a section of phase diagram of the Bi-Co-O diagram in air atmosphere was calculated using the FactSage software. The sillenite structure of Bi24+xCo2-xO39 was confirmed and described. The Rietveld analysis confirmed SEM - EDX results. The heat capacity and enthalpy increments of Bi24Co2O39 were measured by differential scanning calorimetry (DSC) from 258 K to 355 K and by the drop calorimetry from 573 K to 973 K Above room temperature the temperature dependence of the molar heat capacity in the form C-pm = (1467.87 + 0.299410 . T - 15888378 . T-2) J K-1 mol(-1) was derived by least-squares method from the experimental data

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

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Svazek periodika

57

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

83-86

Kód UT WoS článku

000324568600001

EID výsledku v databázi Scopus

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