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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Role of conduction and convection heat transfer during rapid crack-free sintering of bulk ceramic with low thermal conductivity
Original language description
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
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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