2017
Magnetron sputtered W-B-C coatings
MIRZAEI, Saeed; Mostafa ALISHAHI; Pavel SOUČEK; Lukáš ZÁBRANSKÝ; Vilma BURŠÍKOVÁ et al.Základní údaje
Originální název
Magnetron sputtered W-B-C coatings
Autoři
MIRZAEI, Saeed; Mostafa ALISHAHI; Pavel SOUČEK; Lukáš ZÁBRANSKÝ; Vilma BURŠÍKOVÁ; Vratislav PEŘINA a Petr VAŠINA
Vydání
CEITEC PhD Retreat II, 2017
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
10305 Fluids and plasma physics
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/17:00095482
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
Magnetron sputtering; hard coating; Nanoindentation
Změněno: 20. 3. 2018 14:26, doc. Mgr. Pavel Souček, Ph.D.
Anotace
V originále
In the present work, the microstructure and mechanical properties of new boron carbide family WBC thin films were studied, experimentally. A series of nanostructured W-B-C films were deposited by magnetron co-sputtering of W, B4C and C targets. The mechanical behavior of prepared films was analyzed by different nanoindentation techniques. Their composition has been analyzed by using Energy-dispersive X-ray spectroscopy (EDS) and Rutherford backscattering spectrometry (RBS). The incorporation of tungsten and carbon content in the films were in the range of 41-60.9 and 7.1-27.7 at %, respectively. It is illustrated that, as the carbon to tungsten ratio (C/W) increases, the growth of the films experiences a transition from the granular structure into porous columnar one which accompanies by initiation of cracks first in the corner then on the side of the indents. In addition, as a result of decreae in the C/W content, the hardness and reduced elastic modulus of the coatings are increasing considerably from 21.6 to 28.4 GPa and 299 to 346 GPa, respectively.
Návaznosti
| GA15-17875S, projekt VaV |
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| LO1411, projekt VaV |
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