Influence of thermal heating on diamond-like carbon film properties prepared byfiltered cathodic arc
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Publication Details
Author list: Khamnualthong N., Siangchaew K., Limsuwan P.
Publisher: Elsevier
Publication year: 2013
Volume number: 544
Start page: 477
End page: 481
Number of pages: 5
ISSN: 0040-6090
eISSN: 1879-2731
Languages: English-Great Britain (EN-GB)
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Abstract
Tetrahedral amorphous diamond-like carbon (ta-DLC) films were deposited on magnetic recording heads using the filtered cathodic arc method. The deposited film thickness was on the order of several nanometers. The DLC films were then annealed to 100 ฐC-300 ฐC for 30 and 60 min, and the structure of the ta-DLC films was investigated using Raman spectroscopy, where the gross changes were observed in the Raman D and G peaks. Detailed interpretation concluded that there was sp2 clustering as a function of temperature, and there was no sp3-to-sp2 conversion after heating up to 300 ฐC. Furthermore, X-ray photoelectron spectroscopy suggested that oxidation of both the ta-DLC film and the adhesion layer occurs at 300 ฐC. Additionally, more film wear was observed with heating as measured by a nanoindenter. ฉ 2013 Elsevier B.V. All rights reserved.
Keywords
Diamond-like carbon, FCA, Heating effect
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