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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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