Novel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC film

A novel combined in-situ system, integrating Raman spectroscopy and depth-sensing techniques, was applied to analyze the wear induced transformation on the microstructure of diamond-like carbon (DLC) film deposited on Si substrates using a filtered cathodic arc vacuum (FCVA) deposition system. Using...

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Main Authors: Mehdi Rouhani, Jonathan Hobley, Franklin Chau-Nan Hong, Yeau-Ren Jeng
Format: Article
Language:English
Published: AIP Publishing LLC 2019-06-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5107474
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author Mehdi Rouhani
Jonathan Hobley
Franklin Chau-Nan Hong
Yeau-Ren Jeng
author_facet Mehdi Rouhani
Jonathan Hobley
Franklin Chau-Nan Hong
Yeau-Ren Jeng
author_sort Mehdi Rouhani
collection DOAJ
description A novel combined in-situ system, integrating Raman spectroscopy and depth-sensing techniques, was applied to analyze the wear induced transformation on the microstructure of diamond-like carbon (DLC) film deposited on Si substrates using a filtered cathodic arc vacuum (FCVA) deposition system. Using this synchronized characterization technique it was demonstrated that upon wear-induced removal of upper surface layers, the intensity ratio (ID/IG) for the area inside wear tracks decreases. On the other hand, while the peak position for the D line (PD) shifts to higher wavenumbers, the peak position for the G line (PG) shifts to lower wavenumbers. The coefficient of friction shows significant reduction upon increasing the depth of the wear tracks. These results confirm our previous preliminary report on the possible existence of layers rich in sp2 in the surface region. It was also shown that the wear debris is more graphitized.
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spelling doaj.art-d0c59527612e4928aa11c17486663f902022-12-22T02:38:09ZengAIP Publishing LLCAIP Advances2158-32262019-06-0196065215065215-510.1063/1.5107474068906ADVNovel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC filmMehdi Rouhani0Jonathan Hobley1Franklin Chau-Nan Hong2Yeau-Ren Jeng3Mechanical Engineering Department, National Chung Cheng University, 168 University Road, Ming-Hsiung Township, Chia-Yi 62102, TaiwanOndaLabs Consultancy, Deca Homes, Clark Freeport, Barangay Margot, Angeles 2009, PhilippinesDepartment of Chemical Engineering, National Cheng Kung University, 1 University Road, Tainan City 70101, TaiwanDepartment of Biomedical Engineering, National Cheng Kung University, 1 University Road, Tainan City 70101, TaiwanA novel combined in-situ system, integrating Raman spectroscopy and depth-sensing techniques, was applied to analyze the wear induced transformation on the microstructure of diamond-like carbon (DLC) film deposited on Si substrates using a filtered cathodic arc vacuum (FCVA) deposition system. Using this synchronized characterization technique it was demonstrated that upon wear-induced removal of upper surface layers, the intensity ratio (ID/IG) for the area inside wear tracks decreases. On the other hand, while the peak position for the D line (PD) shifts to higher wavenumbers, the peak position for the G line (PG) shifts to lower wavenumbers. The coefficient of friction shows significant reduction upon increasing the depth of the wear tracks. These results confirm our previous preliminary report on the possible existence of layers rich in sp2 in the surface region. It was also shown that the wear debris is more graphitized.http://dx.doi.org/10.1063/1.5107474
spellingShingle Mehdi Rouhani
Jonathan Hobley
Franklin Chau-Nan Hong
Yeau-Ren Jeng
Novel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC film
AIP Advances
title Novel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC film
title_full Novel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC film
title_fullStr Novel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC film
title_full_unstemmed Novel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC film
title_short Novel spatially coordinated in-situ Raman and nanoscale wear analysis of FCVA-deposited DLC film
title_sort novel spatially coordinated in situ raman and nanoscale wear analysis of fcva deposited dlc film
url http://dx.doi.org/10.1063/1.5107474
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