2019
Effect of bonding structure on hardness and fracture resistance of W-B-C coatings with varying B/W ratio
MIRZAEI, Saeed; Mostafa ALISHAHI; Pavel SOUČEK; Lukáš ZÁBRANSKÝ; Vilma BURŠÍKOVÁ et al.Základní údaje
Originální název
Effect of bonding structure on hardness and fracture resistance of W-B-C coatings with varying B/W ratio
Autoři
MIRZAEI, Saeed; Mostafa ALISHAHI; Pavel SOUČEK; Lukáš ZÁBRANSKÝ; Vilma BURŠÍKOVÁ; Monika STUPAVSKÁ; Vratislav PEŘINA; Katalin BALÁZSI; Zsolt CZIGÁNY a Petr VAŠINA
Vydání
Surface & coatings technology, Lausanne, Elsevier, 2019, 0257-8972
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10305 Fluids and plasma physics
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.784
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/19:00107207
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Magnetron sputtering Protective coating Nanocomposite Hardness
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 3. 2020 15:54, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Low ductility and brittle deformation behaviors are major drawbacks of currently used commercial hard ceramic-based protective coatings. Recent ab-initio calculations revealed that the coexistence of metallic, boride and carbide bonds in a nanolaminate structure of crystalline W2BC system provides a combination of high hardness together with moderate ductility. The present paper deals with coatings containing W, B and C with different compositions and investigates the effect of the boron to tungsten ratio (B/W) on the structural and mechanical properties of W-B-C coatings prepared by pulsed-DC magnetron sputtering at a moderate temperature. Coatings with low B/W were deposited in a nanocomposite structure, whereas coatings with high B/W ratios were near-amorphous. The structure of the coatings was not a decisive factor in determining their mechanical properties. These were, however, directly correlated with the chemical bonds present. All the coatings exhibited high fracture resistance. These properties together with good adhesion to cemented tungsten carbides make W-B-C coatings promising candidates for the future protective coatings of tools which undergo large deformation in their working cycle.
Návaznosti
| ED2.1.00/03.0086, projekt VaV |
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| GA15-17875S, projekt VaV |
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| LO1411, projekt VaV |
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