Mechanické vlastnosti supertvrdých TiB2 povlaků připravených DC magnetronovým naprašováním

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical properties of superhard TiB2 coatings prepared by DC magnetron sputtering

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Mechanical properties of superhard TiB2 coatings prepared by DC magnetron sputtering

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Vacuum

ISSN

0042-207X

e-ISSN

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Svazek periodika

82

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

278-281

Kód UT WoS článku

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EID výsledku v databázi Scopus

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