Mechanical properties and deformation mechanism of Al2O3 determined from in situ transmission electron microscopy compression
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00504601" target="_blank" >RIV/68378271:_____/17:00504601 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/2053-1591/aa7832" target="_blank" >https://doi.org/10.1088/2053-1591/aa7832</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2053-1591/aa7832" target="_blank" >10.1088/2053-1591/aa7832</a>
Alternative languages
Result language
angličtina
Original language name
Mechanical properties and deformation mechanism of Al2O3 determined from in situ transmission electron microscopy compression
Original language description
The mechanical properties and deformation mechanism of alumina (Al2O3) ceramic nanopillars and microstructures have been studied using in situ transmission electron microscopy (TEM) compression and nanoindentation experiments. It has been found that the Young's modulus of Al2O3 nanopillars significantly increases with a decrease of its thickness, it ranges from 54.8 GPa for the nanopillar of radius 175 nm to 347.5 GPa for the one of radius of 75 nm. The hardness of Al2O3 microstructures estimated by the nanoindentation is between 3.19 to 20.60 GPa. The Raman spectra of Al2O3 substrate has a production peak (577.3 cm−1) between 418.3 and 645.2 (cm−1) peaks. The strain hardening behavior of Al2O3 microstructures has been observed and the impact of size on the compressive and bending behavior of Al2O3 micro-pillared structures is also examined and explained.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Research Express
ISSN
2053-1591
e-ISSN
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Volume of the periodical
4
Issue of the periodical within the volume
7
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
1-9
UT code for WoS article
000406142700003
EID of the result in the Scopus database
2-s2.0-85027126128