Effect of lateral size of graphene nano-sheets on the mechanical properties and machinability of alumina nano-composites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00457963" target="_blank" >RIV/68081723:_____/16:00457963 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.ceramint.2016.01.160" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2016.01.160</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2016.01.160" target="_blank" >10.1016/j.ceramint.2016.01.160</a>
Alternative languages
Result language
angličtina
Original language name
Effect of lateral size of graphene nano-sheets on the mechanical properties and machinability of alumina nano-composites
Original language description
Graphene Nano-Sheets (GNS) with different lateral sizes (193, 373 and 1070 nm) were produced using liquid phase exfoliation and controlled centrifugation. Alumina-GNS (0.8 vol%) composites with different size GNS were consolidated using spark plasma sintering. The fracture toughness, hardness and elastic modulus of the composites decreased with increasing GNS size. Microstructural investigation of the composites suggested that their mechanical properties were directly related to: (1) average number of GNS present per unit volume in composite and (2) relative size of GNS to alumina grains. Small size GNS resulted in a 35% improvement of fracture toughness of alumina-GNS composite. The mechanism of crack propagation changed as the size of the GNS increased. The smaller size GNS produced various toughening mechanisms, while the larger size GNS, with similar size to the alumina grains, resulted in grain boundary sliding. The composite with larger size GNS was machinable using ordinary tungsten carbide drill bits.
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
20306 - Audio engineering, reliability analysis
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ceramics International
ISSN
0272-8842
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
7533-7542
UT code for WoS article
000372676000120
EID of the result in the Scopus database
2-s2.0-84956862308