کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
703005 891121 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel hybrid facing targets sputtered amorphous carbon overcoat for ultra-high density hard disk media
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Novel hybrid facing targets sputtered amorphous carbon overcoat for ultra-high density hard disk media
چکیده انگلیسی

Amorphous carbon films form a critical protective layer on magnetic hard disk media. A novel in-house configured hybrid facing targets sputtering (HyFTS) utilizing a special magnetron arrangement was used to deposit amorphous carbon (a-C) overcoats. The corrosion inhibition ability and mechanical property were investigated and compared with that of the a-C overcoats deposited by conventional magnetron sputtering (CMS). Studies were done using electrochemical techniques and nano-scratch analysis to determine how corrosion inhibition ability changes at thickness of 2 nm and 5 nm and the scratch resistance of the two types of a-C overcoats, respectively. Electrochemical impedance spectroscopy and potentiodynamic polarization investigations have shown that a-C films deposited by HyFTS have good corrosion resistance even at 2 nm thickness. But at 2 nm, CMS deposited a-C overcoat shows sign of corrosion. Nano-scratch test has also shown improved scratch resistance of the HyFTS deposited a-C. This may be attributed to the better quality film with higher sp3 content deposited by HyFTS as a result of it having a higher amount of ionized species generated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 16, Issue 2, February 2007, Pages 379–387
نویسندگان
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