Nanotribological Investigation of Sliding Properties of Transition Metal Dichalcogenide Thin Film Coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU140234" target="_blank" >RIV/00216305:26620/20:PU140234 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/20:00344382

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsami.0c16789" target="_blank" >https://pubs.acs.org/doi/10.1021/acsami.0c16789</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsami.0c16789" target="_blank" >10.1021/acsami.0c16789</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanotribological Investigation of Sliding Properties of Transition Metal Dichalcogenide Thin Film Coatings

Popis výsledku v původním jazyce

Transition metal dichalcogenide (TMD)-based coatings are known for their low friction performance, which is attributed to the formation of a tribolayer consisting almost exclusively of pure well-ordered TMD. However, the formation of such a tribolayer and its wear track coverage is still unknown. In this study, we employed surface mapping and nanotribological techniques to study the properties of the wear tracks of composite W-S-C coatings. Our analysis revealed that the as-deposited coating consisted of two phases, with significantly different nanoscale frictional properties. We attributed the phases to nanocrystalline WS2 (low friction) and amorphous solution of carbon and WS2 (high friction). The two phases wear at different rates, especially at lower loads, where we observed faster depletion of nanocrystalline WS2. In the wear track, sparse flat WS2 flakes were identified, suggesting that the recrystallization of the WS2 phase occurs only at the spots where the contact pressure is the highest.

Název v anglickém jazyce

Nanotribological Investigation of Sliding Properties of Transition Metal Dichalcogenide Thin Film Coatings

Popis výsledku anglicky

Transition metal dichalcogenide (TMD)-based coatings are known for their low friction performance, which is attributed to the formation of a tribolayer consisting almost exclusively of pure well-ordered TMD. However, the formation of such a tribolayer and its wear track coverage is still unknown. In this study, we employed surface mapping and nanotribological techniques to study the properties of the wear tracks of composite W-S-C coatings. Our analysis revealed that the as-deposited coating consisted of two phases, with significantly different nanoscale frictional properties. We attributed the phases to nanocrystalline WS2 (low friction) and amorphous solution of carbon and WS2 (high friction). The two phases wear at different rates, especially at lower loads, where we observed faster depletion of nanocrystalline WS2. In the wear track, sparse flat WS2 flakes were identified, suggesting that the recrystallization of the WS2 phase occurs only at the spots where the contact pressure is the highest.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/EF16_026%2F0008396" target="_blank" >EF16_026/0008396: Nové nanostruktury pro inženýrské aplikace umožněné kombinací moderních technologií a pokročilých simulací</a><br>

Návaznosti

—

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

ACS APPL MATER INTER

ISSN

1944-8244

e-ISSN

1944-8252

Svazek periodika

12

Číslo periodika v rámci svazku

48

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

54191-54202

Kód UT WoS článku

000596876400063

EID výsledku v databázi Scopus

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