Preparation and Properties of Layered SiC-Graphene Composites for EDM
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F21%3A00543429" target="_blank" >RIV/68081723:_____/21:00543429 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1996-1944/14/11/2916" target="_blank" >https://www.mdpi.com/1996-1944/14/11/2916</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma14112916" target="_blank" >10.3390/ma14112916</a>
Alternative languages
Result language
angličtina
Original language name
Preparation and Properties of Layered SiC-Graphene Composites for EDM
Original language description
Three and five-layered silicon carbide-based composites containing 0, 5, and 15 wt.% of graphene nanoplatelets (GNPs) were prepared with the aim to obtain a sufficiently high electrical conductivity in the surface layer suitable for electric discharge machining (EDM). The layer sequence in the asymmetric three-layered composites was SiC/SiC-5GNPs/SiC-15GNPs, while in the symmetric five-layered composite, the order of layers was SiC-15GNPs/SiC-5GNPs/SiC/SiC-5GNPs/SiC-15GNPs. The layered samples were prepared by rapid hot-pressing (RHP) applying various pressures, and it was shown that for the preparation of dense 3- or 5-layered SiC/GNPs composites, at least 30 MPa of the applied load was required during sintering. The electrical conductivity of 3-layered and 5-layered composites increased significantly with increasing sintering pressure when measured on the SiC surface layer containing 15 wt.% of GNPs. The increasing GNPs content had a positive influence on the electrical conductivity of individual layers, while their instrumented hardness and elastic modulus decreased. The scratch tests confirmed that the materials consisted of well-defined layers with straight interfaces without any delamination, which suggests good adhesion between the individual layers.
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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials
ISSN
1996-1944
e-ISSN
1996-1944
Volume of the periodical
14
Issue of the periodical within the volume
11
Country of publishing house
CH - SWITZERLAND
Number of pages
14
Pages from-to
2916
UT code for WoS article
000660279600001
EID of the result in the Scopus database
2-s2.0-85107352106