Temperature dependence of Young's modulus and damping of uniaxially pressed and partially sintered mullite ceramics and mullite-alumina composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43928641" target="_blank" >RIV/60461373:22310/24:43928641 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221923007161?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221923007161?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2023.09.015" target="_blank" >10.1016/j.jeurceramsoc.2023.09.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature dependence of Young's modulus and damping of uniaxially pressed and partially sintered mullite ceramics and mullite-alumina composites

Popis výsledku v původním jazyce

Partially sintered mullite ceramics and mullite-alumina (MA) composites have been prepared by uniaxial pressing and conventional sintering in the temperature range 1570–1620 °C. The temperature dependence of Young&apos;s modulus and damping is determined by impulse excitation from room temperature to 1400 °C. For the mullite ceramics the temperature dependence of Young&apos;s modulus exhibits the typical behavior expected for the majority of oxide ceramics, i.e. a continuous decrease with increasing temperature which can be conveniently described by master curves. The damping curves are unspectacular, showing only the usual steep increase at high temperature. For the MA composites the temperature dependence of Young&apos;s modulus exhibits an anomaly, viz. an increase from 800° to 900°C to a maximum at 1050–1100 °C, which is discussed in terms of two hypotheses from the literature (“glass phase hypothesis” and “phase transition hypothesis”), although the ultimate reason for this anomaly remains unclear. © 2023 Elsevier Ltd

Název v anglickém jazyce

Temperature dependence of Young's modulus and damping of uniaxially pressed and partially sintered mullite ceramics and mullite-alumina composites

Popis výsledku anglicky

Partially sintered mullite ceramics and mullite-alumina (MA) composites have been prepared by uniaxial pressing and conventional sintering in the temperature range 1570–1620 °C. The temperature dependence of Young&apos;s modulus and damping is determined by impulse excitation from room temperature to 1400 °C. For the mullite ceramics the temperature dependence of Young&apos;s modulus exhibits the typical behavior expected for the majority of oxide ceramics, i.e. a continuous decrease with increasing temperature which can be conveniently described by master curves. The damping curves are unspectacular, showing only the usual steep increase at high temperature. For the MA composites the temperature dependence of Young&apos;s modulus exhibits an anomaly, viz. an increase from 800° to 900°C to a maximum at 1050–1100 °C, which is discussed in terms of two hypotheses from the literature (“glass phase hypothesis” and “phase transition hypothesis”), although the ultimate reason for this anomaly remains unclear. © 2023 Elsevier Ltd

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GA22-25562S" target="_blank" >GA22-25562S: Impulzní excitace jako nekonvenční metoda k monitorování fázových přeměn a mikrostrukturních změn během tepelného zatížení materiálů</a><br>

Návaznosti

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

Rok uplatnění

2024

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

1873-619X

Svazek periodika

44

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

1081-1094

Kód UT WoS článku

001106290100001

EID výsledku v databázi Scopus

2-s2.0-85171857733