Detail publikace

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

SALAMON, D. KALOUSEK, R. ZLÁMAL, J. MACA, K.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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

Klíčová slova

Heat transfer; Numerical calculation; Rapid sintering; Zirconia ceramics

Autoři

SALAMON, D.; KALOUSEK, R.; ZLÁMAL, J.; MACA, K.

Vydáno

1. 9. 2016

ISSN

0955-2219

Periodikum

Journal of the European Ceramic Society

Ročník

36

Číslo

12

Stát

Spojené království Velké Británie a Severního Irska

Strany od

2955

Strany do

2959

Strany počet

5

URL

http://www.sciencedirect.com/science/article/pii/S095522191530248X

BibTex

@article{BUT120147,
  author="David {Salamon} and Radek {Kalousek} and Jakub {Zlámal} and Karel {Maca}",
  title="Role of conduction and convection heat transfer during rapid crack-free sintering of bulk ceramic with low thermal conductivity",
  journal="Journal of the European Ceramic Society",
  year="2016",
  volume="36",
  number="12",
  pages="2955--2959",
  doi="10.1016/j.jeurceramsoc.2015.11.034",
  issn="0955-2219",
  url="http://www.sciencedirect.com/science/article/pii/S095522191530248X"
}