Synthesis and characterization of Ta–B–C coatings prepared by DCMS and HiPIMS co-sputtering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00125392" target="_blank" >RIV/00216224:14310/22:00125392 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.vacuum.2022.110937" target="_blank" >https://doi.org/10.1016/j.vacuum.2022.110937</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.vacuum.2022.110937" target="_blank" >10.1016/j.vacuum.2022.110937</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis and characterization of Ta–B–C coatings prepared by DCMS and HiPIMS co-sputtering
Original language description
This study reports on the deposition and properties of Ta–B–C coatings by the co-sputtering of tantalum, boron carbide, and graphite targets using High Power Impulse Magnetron Sputtering (HiPIMS). It was possible to affect the microstructure of the deposited coatings by altering the deposition temperature or by the application of RF induced self-bias on the substrates without changing their chemical composition. The only identified crystalline phase from the Ta–B–C system present was TaC. The boron content in the coatings shows that the TaC crystallite size can be changed by a factor of 10 by changing the power to the boron carbide target. Mechanical properties of the coatings measured directly after the synthesis yield hardness higher than 40 GPa. After the relaxation of internal stress in the coatings (after one year) and changes in the structure, the hardness of all coatings was close to 36 GPa. According to ab initio calculations, the B incorporation in the fcc lattice of TaC in combination with C vacancies lead to lower (higher) shear-to-bulk modulus ratio (Poisson’s ratio), providing a good basis for improved ductility. All in all, Ta–B–C system shows a good potential as a novel hard protective coating.
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
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Vacuum
ISSN
0042-207X
e-ISSN
1879-2715
Volume of the periodical
199
Issue of the periodical within the volume
May
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
1-9
UT code for WoS article
000790489700003
EID of the result in the Scopus database
2-s2.0-85124488383