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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
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
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.
Klíčová slova
Sintering; Thermal expansion; Zirconia; Alumina; Layered ceramics
Autoři
CHLUP, Z.; HADRABA, H.; DRDLÍK, D.; MACA, K.; DLOUHÝ, I.; BERMEJO, R.
Rok RIV
2014
Vydáno
1. 5. 2014
ISSN
0272-8842
Periodikum
Ceramics International
Ročník
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" }