Design of damage tolerant and crack-free layered ceramics with textured microstructure
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU134732" target="_blank" >RIV/00216305:26210/20:PU134732 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S095522191930603X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S095522191930603X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2019.09.004" target="_blank" >10.1016/j.jeurceramsoc.2019.09.004</a>
Alternative languages
Result language
angličtina
Original language name
Design of damage tolerant and crack-free layered ceramics with textured microstructure
Original language description
This work demonstrates damage tolerant behavior of ceramic laminates designed with residual stresses and free of surface edge cracks. Non-periodic architectures were designed by embedding 2 textured alumina (TA) layers between 3 equiaxed alumina-zirconia (AZ) layers. Compressive residual stresses of ∼ 250 MPa were induced in the textured layers. Indentation strength tests showed that textured compressive layers arrested the propagation of cracks. Results were compared to periodic architectures with the same volume ratio of TA and AZ materials. Crack propagation was arrested in both periodic and non-periodic designs; the minimum threshold-strength being higher in the latter. Non-periodic architectures with compressive layers as thin as ∼ 200 μm showed no evidence of surface edge cracks, yet still reached minimum threshold strength values of ∼ 300 MPa. In addition, the textured microstructure promoted crack bifurcation in the thin compressive layers and thus enhanced the damage tolerance of the material.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the European Ceramic Society
ISSN
0955-2219
e-ISSN
1873-619X
Volume of the periodical
2020
Issue of the periodical within the volume
40
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
427-435
UT code for WoS article
000498292100029
EID of the result in the Scopus database
2-s2.0-85073068149