Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/29843
Title: | Controlled atmosphere dependent tribological properties of thermally annealed ultrananocrystalline diamond films | Authors: | Kumar, N. Kozakov, A. T. KAMATCHI JOTHIRAMALINGAM, Sankaran Sidashov, A. V. Lin, I-Nan |
Issue Date: | 2019 | Publisher: | ELSEVIER SCIENCE SA | Source: | DIAMOND AND RELATED MATERIALS, 97 (Art N° 107437) | Abstract: | Tribological properties of ultrananocrystalline diamond (UNCD) films were investigated in the ambient atmospheric and high-vacuum in the dynamic transition of tribo-atmospheric condition. The UNCD film with trans-polyacetylene (t-PA) phase showed high friction value in the ambient atmospheric condition and this value became significantly less in the transition of atmosphere to high-vacuum. In contrast, thermally annealed similar UNCD film showed ultralow friction value in the ambient atmospheric condition and this value was high in the transition to high-vacuum tribo-condition. The UNCD film with t-PA phase oxidized in the ambient atmospheric tribological condition which was the main reason for high friction. However, intrinsic hydrogen present in the UNCD films passivated the dangling bonds in high-vacuum tribological condition. Chemical passivation of carbon dangling bonds was efficient for thermally annealed UNCD film in the ambient atmosphere and such passivation was restricted in the high-vacuum. Chemical analysis of the wear track was investigated by the Auger X-ray and X-ray photoelectron spectroscopies for revealing the comprehensive friction mechanisms. | Notes: | [Kumar, N.] Indira Gandhi Ctr Atom Res, Mat Sci Grp, Kalpakkam, Tamil Nadu, India. [Kozakov, A. T.] Southern Fed Univ, Sci Res Inst Phys, 194 Stachki, Rostov Na Donu 344090, Russia. [Sankaran, K. J.] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Sankaran, K. J.] IMEC VZW, IMOMEC, B-3590 Diepenbeek, Belgium. [Sidashov, A., V] Rostov State Transport Univ, Rostov Na Donu 344008, Russia. [Lin, I-Nan] Tamkang Univ, Dept Phys, Tamsui, Taiwan. | Keywords: | Ultrananocrystalline diamondfilms; trans-polyacetylene; Tribofilm; Ambient atmosphere and vacuum tribologyX-ray photoelectron and auger; X-rayspectroscopy;Ultrananocrystalline diamond films; trans-polyacetylene; Tribofilm; Ambient atmosphere and vacuum tribology; X-ray photoelectron and auger X-ray spectroscopy | Document URI: | http://hdl.handle.net/1942/29843 | ISSN: | 0925-9635 | e-ISSN: | 1879-0062 | DOI: | 10.1016/j.diamond.2019.05.022 | ISI #: | 000486134300009 | Rights: | 2019 Elsevier B.V. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
kumar 2.pdf Restricted Access | Published version | 1.45 MB | Adobe PDF | View/Open Request a copy |
SCOPUSTM
Citations
1
checked on Sep 3, 2020
WEB OF SCIENCETM
Citations
6
checked on Oct 12, 2024
Page view(s)
134
checked on Sep 6, 2022
Download(s)
114
checked on Sep 6, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.