Role of conduction and convection heat transfer during rapid crack-free sintering of bulk ceramic with low thermal conductivity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F16%3APU117231" target="_blank" >RIV/00216305:26620/16:PU117231 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S095522191530248X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S095522191530248X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2015.11.034" target="_blank" >10.1016/j.jeurceramsoc.2015.11.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Role of conduction and convection heat transfer during rapid crack-free sintering of bulk ceramic with low thermal conductivity

Popis výsledku v původním jazyce

Rapid sintering is nowadays a domain of novel methods such as spark plasma sintering (SPS) or flash sintering. These methods deal with special heating and, therefore, it is difficult to describe obtained results by a conventional pressure-less sintering mechanism. This work deals with specially designed pressure-less rapid sintering furnace, which allows heating rates on level of hundreds degrees per minute. Sample with volume over 30cm3 from low thermally conductive tetragonal zirconia stabilized with 3mol% Y2O3 (3Y-TZP) was rapidly sintered to relative density of 86% without crack formation. Experimental data were used for numerical calculations of conduction/convection heat transfer. Obtained results reveal that the maximum temperature in the sample does not exceed 1200°C if only heating by conduction and convection is considered. Our results indicate that during rapid sintering of low thermally conductive materials radiation heat transfer is dominant in both conventional and SPS conditions

Název v anglickém jazyce

Role of conduction and convection heat transfer during rapid crack-free sintering of bulk ceramic with low thermal conductivity

Popis výsledku anglicky

Rapid sintering is nowadays a domain of novel methods such as spark plasma sintering (SPS) or flash sintering. These methods deal with special heating and, therefore, it is difficult to describe obtained results by a conventional pressure-less sintering mechanism. This work deals with specially designed pressure-less rapid sintering furnace, which allows heating rates on level of hundreds degrees per minute. Sample with volume over 30cm3 from low thermally conductive tetragonal zirconia stabilized with 3mol% Y2O3 (3Y-TZP) was rapidly sintered to relative density of 86% without crack formation. Experimental data were used for numerical calculations of conduction/convection heat transfer. Obtained results reveal that the maximum temperature in the sample does not exceed 1200°C if only heating by conduction and convection is considered. Our results indicate that during rapid sintering of low thermally conductive materials radiation heat transfer is dominant in both conventional and SPS conditions

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

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

Návaznosti

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

Rok uplatnění

2016

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

36

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

2955-2959

Kód UT WoS článku

000378362800013

EID výsledku v databázi Scopus

2-s2.0-84950121904