J 2024

Development of a-C:H coatings doped with trimethylsilyl acetate prepared using plasma enhanced chemical vapor deposition

KELAROVÁ, Štěpánka, Richard VÁCLAVIK, Roman PŘIBYL, Monika STUPAVSKÁ, Vilma BURŠÍKOVÁ et. al.

Basic information

Original name

Development of a-C:H coatings doped with trimethylsilyl acetate prepared using plasma enhanced chemical vapor deposition

Authors

KELAROVÁ, Štěpánka (203 Czech Republic, belonging to the institution), Richard VÁCLAVIK (703 Slovakia, belonging to the institution), Roman PŘIBYL (203 Czech Republic, belonging to the institution), Monika STUPAVSKÁ (703 Slovakia, belonging to the institution) and Vilma BURŠÍKOVÁ (203 Czech Republic, belonging to the institution)

Edition

Diamond and Related Materials, Elsevier, 2024, 0925-9635

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10300 1.3 Physical sciences

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.100 in 2022

Organization unit

Faculty of Science

UT WoS

001258541800001

Keywords in English

Trimethylsilyl acetate; PECVD; Nanoindentation; FTIR; & Oslash;S

Tags

Tags

International impact, Reviewed
Změněno: 11/9/2024 10:03, Mgr. Marie Šípková, DiS.

Abstract

V originále

The main aim of the present study was to develop hard a-C:H:SiOx coatings prepared from the unique gaseous mixture of trimethylsilyl acetate (TMSAc) with methane using plasma of RF capacitively coupled glow discharge. Studied coatings were prepared using different methane ratios in TMSAc/CH4 gaseous mixtures ranging from 7.1 % to 85.7 %. Simultaneously, the influence of the power supplied to the discharge (25–100 W) on the properties of resulting coatings was investigated. The presented research work discusses in detail the evolution of chemical composition, mechanical characteristics, and optical properties of resulting coatings depending on variable CH4 ratio and discharge power. Within this study, various materials with the smooth surface structure were achieved. Applying low CH4 ratio and 25 W power led to the formation of soft SiOx CyHz coatings with high content of Si–O and –CH3 groups exhibiting hardness of approx. 0.95 GPa. Gradually increasing the CH4 ratio and discharge power up to the specified limit values (85 % and 100 W, respectively) induced structural changes, resulting in a-C:H:SiOx coatings with a remarkable hardness of 11 GPa and excellent fracture resistance. These attributes are of utmost importance in numerous industrial applications, including anticorrosive coatings, low-friction wear-resistant coatings to prolong the lifetime of car engines, biocompatible coatings, components for plastic molds, as well as parts for optical disc molds and textile machinery.

Links

GA23-06263S, research and development project
Name: Termofyzikální charakterizace tenkých vrstev
Investor: Czech Science Foundation
LM2018097, research and development project
Name: Centrum výzkumu a vývoje plazmatu a nanotechnologických povrchových úprav (Acronym: CEPLANT)
Investor: Ministry of Education, Youth and Sports of the CR
LM2023039, research and development project
Name: Centrum výzkumu a vývoje plazmatu a nanotechnologických povrchových úprav
Investor: Ministry of Education, Youth and Sports of the CR