Please use this identifier to cite or link to this item:
https://doi.org/10.1088/0022-3727/44/11/115502
DC Field | Value | |
---|---|---|
dc.title | Effect of pre-treatment of the substrate surface by energetic C+ ion bombardment on structure and nano-tribological characteristics of ultra-thin tetrahedral amorphous carbon (ta-C) protective coatings | |
dc.contributor.author | Rismani, E. | |
dc.contributor.author | Sinha, S.K. | |
dc.contributor.author | Tripathy, S. | |
dc.contributor.author | Yang, H. | |
dc.contributor.author | Bhatia, C.S. | |
dc.date.accessioned | 2014-10-07T04:26:37Z | |
dc.date.available | 2014-10-07T04:26:37Z | |
dc.date.issued | 2011-03-23 | |
dc.identifier.citation | Rismani, E., Sinha, S.K., Tripathy, S., Yang, H., Bhatia, C.S. (2011-03-23). Effect of pre-treatment of the substrate surface by energetic C+ ion bombardment on structure and nano-tribological characteristics of ultra-thin tetrahedral amorphous carbon (ta-C) protective coatings. Journal of Physics D: Applied Physics 44 (11) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0022-3727/44/11/115502 | |
dc.identifier.issn | 00223727 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/82206 | |
dc.description.abstract | Depositing an ultra-thin tetrahedral amorphous carbon (ta-C) protective coating on the surface of the recording heads in magnetic tape drives can improve the tribological problems at the head/tape interface. In this work the effect of pre-treatment of the surface of AlTiC substrate (main bearing surface of head in contact with tape) by C+ ions of moderate energy (smaller than 400 eV) on the structural and tribo-mechanical behaviours of the coated surfaces is studied. Sample preparation consisted of two separate stages of surface pre-treatment and deposition of the protective film, and was done by means of filtered cathodic vacuum arc. Structure of the ta-C film and its interface with the substrate were studied by transmission electron microscopy and time-of-flight secondary ion mass spectrometry depth profiling. The results revealed the formation of a broader, dense atomically mixed layer at the ta-C film-substrate interface of the pre-treated samples comparing with that of the samples without pre-treatment. Chemical characterization of thin diamond-like carbon coatings was conducted by means of x-ray photoelectron spectroscopy and the surface pre-treatment was found to have a remarkable effect on increasing the sp3 hybridization fraction in the ta-C overcoat. Nano-tribological properties of the treated surfaces were examined using ball-on-flat wear test at very low load (20 mN). There was a good correlation between the surface and structure characteristics of the film, and the tribological results and the pre-treated surfaces presented a very low coefficient of friction and higher wear life. The experimental results demonstrate the effectiveness of bombardment of the surface with C+ ions of moderate ion energy to improve the structural and tribo-mechanical properties of the protective ta-C films on the magnetic head substrate material. © 2011 IOP Publishing Ltd. | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1088/0022-3727/44/11/115502 | |
dc.description.sourcetitle | Journal of Physics D: Applied Physics | |
dc.description.volume | 44 | |
dc.description.issue | 11 | |
dc.description.page | - | |
dc.description.coden | JPAPB | |
dc.identifier.isiut | 000288207500018 | |
Appears in Collections: | Staff Publications |
Show simple item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.