| SOUČEK, Pavel, Lukáš ZÁBRANSKÝ, Vilma BURŠÍKOVÁ, Jiří BURŠÍK, Stanislava DEBNÁROVÁ, Milan SVOBODA, Vratislav PEŘINA a Petr VAŠINA. Fracture Resistance Enhancement in Hard Mo-B-C Coatings Tailored by Composition and Microstructure. Journal of Nanomaterials. 2018, roč. 2018, March, s. nestránkováno, 7 s. ISSN 1687-4110. doi:10.1155/2018/5184584. |
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@article{1411249,
author = {Souček, Pavel and Zábranský, Lukáš and Buršíková, Vilma and Buršík, Jiří and Debnárová, Stanislava and Svoboda, Milan and Peřina, Vratislav and Vašina, Petr},
article_number = {March},
doi = {http://dx.doi.org/10.1155/2018/5184584},
keywords = {magnetron sputtering; nanolaminates; mechanical properties},
language = {eng},
issn = {1687-4110},
journal = {Journal of Nanomaterials},
title = {Fracture Resistance Enhancement in Hard Mo-B-C Coatings Tailored by Composition and Microstructure},
url = {https://www.hindawi.com/journals/jnm/2018/5184584/},
volume = {2018},
year = {2018}
}
TY - JOUR
ID - 1411249
AU - Souček, Pavel - Zábranský, Lukáš - Buršíková, Vilma - Buršík, Jiří - Debnárová, Stanislava - Svoboda, Milan - Peřina, Vratislav - Vašina, Petr
PY - 2018
TI - Fracture Resistance Enhancement in Hard Mo-B-C Coatings Tailored by Composition and Microstructure
JF - Journal of Nanomaterials
VL - 2018
IS - March
SP - nestránkováno
EP - nestránkováno
SN - 16874110
KW - magnetron sputtering
KW - nanolaminates
KW - mechanical properties
UR - https://www.hindawi.com/journals/jnm/2018/5184584/
N2 - State-of-the-art protective coatings often suffer from brittleness. Therefore, the coatings are intensively sought which would simultaneously exhibit high hardness and stiffness with moderate ductility and fracture resistance. In this paper, we report on the nanostructure designing of coatings containing metal, boron, and carbon enabling the simultaneous presence of stiff boridic and carbidic bonds together with weaker metallic bonds to provide coatings with these desirable properties. Three designs are presented with different relative amounts of nanocrystalline and amorphous phases, ranging from near-amorphous to prevalently crystalline microstructure. All presented coatings exhibit an unusual combination of high fracture resistance and high hardness that cannot be achieved with state-of-the-art protective coatings. Indentation tests at high loads revealed that no cracks are present at the surface of the investigated coatings while state-of-the-art ceramic protective coatings already exhibit significant cracking. Cracks in the bulk of the presented coating are detected only when the deformation is so severe that the substrate itself fails.
ER -
SOUČEK, Pavel, Lukáš ZÁBRANSKÝ, Vilma BURŠÍKOVÁ, Jiří BURŠÍK, Stanislava DEBNÁROVÁ, Milan SVOBODA, Vratislav PEŘINA a Petr VAŠINA. Fracture Resistance Enhancement in Hard Mo-B-C Coatings Tailored by Composition and Microstructure. \textit{Journal of Nanomaterials}. 2018, roč.~2018, March, s.~nestránkováno, 7 s. ISSN~1687-4110. doi:10.1155/2018/5184584.
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