Mechanical properties of superhard TiB2 coatings prepared by DC magnetron sputtering

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00023835" target="_blank" >RIV/00216224:14310/07:00023835 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Mechanical properties of superhard TiB2 coatings prepared by DC magnetron sputtering

Original language description

Superhard titanium diboride (TiB2) coatings (Hv&gt; 40 GPa) were deposited in Ar atmosphere from stoichiometric TiB2 target using an unbalanced direct current (d. c.) magnetron. Polished Si (0 0 1), stainless steel, high-speed steel (HSS) and tungsten carbide (WC) substrates were used for deposition. The influence of negative substrate bias, Us, and substrate temperature, Ts, on mechanical properties of TiB2 coatings was studied. X ray diffraction (XRD) analysis showed hexagonal TiB2 structure with (0 001) preferred orientation. The texture of TiB2 coatings was dependent upon the ion bombardment (Us increased from 0 to minus 300 V) and the substrate heating (Ts increased from room temperature (RT) to 700 C). All TiB2 coatings were measured using microhardness tester Fischerscope H100 equipped with Vickers and Berkovich diamond indenters and exhibited high values of hardness Hv up to 34 GPa, effective Young's modulus ranging from 450 to 600 GPa; here E and nu are the Young's modulus an

Czech name

Mechanické vlastnosti supertvrdých TiB2 povlaků připravených DC magnetronovým naprašováním

Czech description

Mechanické vlastnosti supertvrdých TiB2 povlaků připravených DC magnetronovým naprašováním

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Vacuum

ISSN

0042-207X

e-ISSN

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Volume of the periodical

82

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

4

Pages from-to

278-281

UT code for WoS article

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EID of the result in the Scopus database

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