Detail publikačního výsledku

On the determination of the stress-free temperature for alumina-zirconia multilayer structures

CHLUP, Z.; HADRABA, H.; DRDLÍK, D.; MACA, K.; DLOUHÝ, I.; BERMEJO, R.

Originální název

On the determination of the stress-free temperature for alumina-zirconia multilayer structures

Anglický název

On the determination of the stress-free temperature for alumina-zirconia multilayer structures

Druh

Článek WoS

Originální abstrakt

Internal residual stresses can enhance the fracture resistance and mechanical reliability of layered ceramics. The magnitude of the stresses depends on the elastic and thermal properties of the layers and the typically assumed reference (stress-free) temperature, below which internal stresses develop. A novel combined experimental and numerical simulation approach has been developed to determine the reference temperature and experimentally proved in alumina–zirconia ceramic laminates. Dilatometric data of monolithic phases are in put for the numerical simulation and experimental data on the laminate properties are used for the stress-free temperature determination. In contrast to typical assumptions, reference temperature very near the sintering temperature (i.e.approx. Tref=1470C) was found, which should be considered for the estimation of internal (residual) stresses in alumina/zirconia-based layered ceramics.

Anglický abstrakt

Internal residual stresses can enhance the fracture resistance and mechanical reliability of layered ceramics. The magnitude of the stresses depends on the elastic and thermal properties of the layers and the typically assumed reference (stress-free) temperature, below which internal stresses develop. A novel combined experimental and numerical simulation approach has been developed to determine the reference temperature and experimentally proved in alumina–zirconia ceramic laminates. Dilatometric data of monolithic phases are in put for the numerical simulation and experimental data on the laminate properties are used for the stress-free temperature determination. In contrast to typical assumptions, reference temperature very near the sintering temperature (i.e.approx. Tref=1470C) was found, which should be considered for the estimation of internal (residual) stresses in alumina/zirconia-based layered ceramics.

Klíčová slova

Sintering; Thermal expansion; Zirconia; Alumina; Layered ceramics

Klíčová slova v angličtině

Sintering; Thermal expansion; Zirconia; Alumina; Layered ceramics

Autoři

CHLUP, Z.; HADRABA, H.; DRDLÍK, D.; MACA, K.; DLOUHÝ, I.; BERMEJO, R.

Rok RIV

2017

Vydáno

01.05.2014

ISSN

0272-8842

Periodikum

Ceramics International

Svazek

2014 (40)

Číslo

4

Stát

Spojené království Velké Británie a Severního Irska

Strany od

5787

Strany do

5793

Strany počet

7

BibTex

@article{BUT105765,
  author="Zdeněk {Chlup} and Hynek {Hadraba} and Daniel {Drdlík} and Karel {Maca} and Ivo {Dlouhý} and Raul {Bermejo}",
  title="On the determination of the stress-free temperature for alumina-zirconia multilayer structures",
  journal="Ceramics International",
  year="2014",
  volume="2014 (40)",
  number="4",
  pages="5787--5793",
  doi="10.1016/j.ceramint.2013.11.018",
  issn="0272-8842"
}