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@proceedings{1407528,
author = {Mirzaei, Saeed and Alishahi, Mostafa and Souček, Pavel and Zábranský, Lukáš and Buršíková, Vilma and Peřina, Vratislav and Vašina, Petr},
booktitle = {CEITEC PhD Retreat II},
keywords = {Magnetron sputtering; hard coating; Nanoindentation},
language = {eng},
title = {Magnetron sputtered W-B-C coatings},
year = {2017}
}
TY - CONF
ID - 1407528
AU - Mirzaei, Saeed - Alishahi, Mostafa - Souček, Pavel - Zábranský, Lukáš - Buršíková, Vilma - Peřina, Vratislav - Vašina, Petr
PY - 2017
TI - Magnetron sputtered W-B-C coatings
KW - Magnetron sputtering
KW - hard coating
KW - Nanoindentation
N2 - 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.
ER -
MIRZAEI, Saeed, Mostafa ALISHAHI, Pavel SOUČEK, Lukáš ZÁBRANSKÝ, Vilma BURŠÍKOVÁ, Vratislav PEŘINA and Petr VAŠINA. Magnetron sputtered W-B-C coatings. In \textit{CEITEC PhD Retreat II}. 2017.
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