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CHLUP, Z. NOVOTNÁ, L. ŠIŠKA, F. DRDLÍK, D. HADRABA, H.
Originální název
Effect of residual stresses to the crack path in alumina/zirconia laminates
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Laminates with alternating layers are well known from nature. The strongly bonded alumina/zirconia (Al2O3/ZrO2) layers can combine high fracture resistance with high strength and stiffness when properly tailored. The presence of compressive residual stresses formed in Al2O3 layers can suppress and deflect cracks propagating through the layers. The crack path is governed by both the elastic properties and the internal stress field of individual layers. The laminates with various layer-thickness ratios ranging from 0.1 to 3 were used to investigate the effect of residual stresses and influence of crack formation pattern on the crack path development. The indentation surface cracks observed in various alumina-zirconia laminates exhibit the same crack deflection independently on the level of internal stresses. The crack deflection observed on the fracture surfaces of bending specimens was related to the indentations cracks. The complicated crack path was explained experimentally by 3D reconstruction with the support of numerical simulations.
Klíčová slova
Laminates; Alumina; Zirconia; Residual/internal stresses; Crack path
Autoři
CHLUP, Z.; NOVOTNÁ, L.; ŠIŠKA, F.; DRDLÍK, D.; HADRABA, H.
Vydáno
13. 8. 2020
ISSN
0955-2219
Periodikum
Journal of the European Ceramic Society
Ročník
40
Číslo
15
Stát
Spojené království Velké Británie a Severního Irska
Strany od
5810
Strany do
5818
Strany počet
9
URL
https://www.sciencedirect.com/science/article/pii/S0955221920305148
BibTex
@article{BUT164765, author="Zdeněk {Chlup} and Lenka {Novotná} and Filip {Šiška} and Daniel {Drdlík} and Hynek {Hadraba}", title="Effect of residual stresses to the crack path in alumina/zirconia laminates", journal="Journal of the European Ceramic Society", year="2020", volume="40", number="15", pages="5810--5818", doi="10.1016/j.jeurceramsoc.2020.06.044", issn="0955-2219", url="https://www.sciencedirect.com/science/article/pii/S0955221920305148" }