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HADRABA, H. CHLUP, Z. DRDLÍK, D. ŠIŠKA, F.
Original Title
Characterisation of mechanical and fracture behaviour of Al2O3/ZrO2/BaTiO3 laminate by indentation
Type
journal article in Web of Science
Language
English
Original Abstract
The paper describes the preparation of laminate piezo-ceramic composite consisting of Al2O3, ZrO2 and BaTiO3 layers and proves the idea of residual stresses utilization for crack deflection and handling with the brittleness of BaTiO3. The laminate was prepared by alternate electrophoretic deposition. Although the laminate was sintered at 1300 °C and consisted of layers having a density between 57 % (ZrO2) and 73 % (BaTiO3), the hardness and elastic modulus of layers corresponded to those of free sintered monolithic ceramics at a comparable level of porosity. The crack deflection at the interface between individual layers was observed having the same effect and magnitude as deflection observed in the case of fully dense Al2O3/ZrO2 laminates. An interlayer developed on the interface between Al2O3 and BaTiO3 had no negative impact on crack propagation.
Keywords
Laminate; Electrophoretic deposition; Barium titanate; Crack propagation; Energy harvesting
Authors
HADRABA, H.; CHLUP, Z.; DRDLÍK, D.; ŠIŠKA, F.
Released
29. 7. 2020
Publisher
Elsevier
ISBN
0955-2219
Periodical
Journal of the European Ceramic Society
Year of study
40
Number
14
State
United Kingdom of Great Britain and Northern Ireland
Pages from
4799
Pages to
4807
Pages count
9
URL
https://www.sciencedirect.com/science/article/pii/S0955221920302934
BibTex
@article{BUT164623, author="Hynek {Hadraba} and Zdeněk {Chlup} and Daniel {Drdlík} and Filip {Šiška}", title="Characterisation of mechanical and fracture behaviour of Al2O3/ZrO2/BaTiO3 laminate by indentation", journal="Journal of the European Ceramic Society", year="2020", volume="40", number="14", pages="4799--4807", doi="10.1016/j.jeurceramsoc.2020.04.024", issn="0955-2219", url="https://www.sciencedirect.com/science/article/pii/S0955221920302934" }