Electrochemical Characterization of Ultra-thin Carbon Overcoats for Magnetic Hard Disk Components

2019 ◽  
Vol 25 (29) ◽  
pp. 151-167
Author(s):  
Worawarit Kobsiriphat ◽  
Laddawan Supadee ◽  
Krisda Siangchaew

2016 ◽  
Vol 23 (6) ◽  
pp. 2275-2283 ◽  
Author(s):  
Wah Lawrence Ng ◽  
Amalina Balqis binti Abu Bakar ◽  
Mohammad Azrul Firdhaus bin Azmi ◽  
Khoo Wee Shen ◽  
Yonggang Meng

2003 ◽  
Vol 125 (4) ◽  
pp. 850-853 ◽  
Author(s):  
Junho Choi ◽  
Masahiro Kawaguchi ◽  
Takahisa Kato

Organosilane monolayer of 1H,1H,2H,2H-perfluorodecyltrichlorosilane and PFPE lubricant films were deposited on magnetic hard disk surfaces protected with amorphous carbon overcoats, and their frictional properties were investigated by a ball-on-flat tribotester. The thickness of PFPE films having only an immobile layer or both immobile and mobile layers was varied from about 0.6 nm to 4 nm. The friction coefficient of the organosilane monolayer coated surface is comparable to that of the PFPE coated surface with a 1.0 nm thick immobile layer and lower than that of the PFPE coated surface with a 0.6 nm thick immobile layer. The thickness of the lubricant has to decrease to less than 1 nm to further increase recording density. In that case, the mobile portion of PFPE lubricant is negligible. This study suggests that organosilane monolayers (with shorter chain lengths) may be used as an alternate lubricant in hard disk drive systems.


2016 ◽  
Vol 12 (6) ◽  
pp. 602-611 ◽  
Author(s):  
O. Sotelo-Mazón ◽  
Cecilia Cuevas-Arteaga ◽  
J. Porcayo-Calderón ◽  
G. Izquierdo-Montalvo

2021 ◽  
pp. 138502
Author(s):  
Yuanming Wang ◽  
Yunhong Song ◽  
Chunling Ma ◽  
Hong-qi Xia ◽  
Ranran Wu ◽  
...  

2021 ◽  
Vol 2021 (15) ◽  
pp. 1498-1504
Author(s):  
Dominik Natke ◽  
Annika Preiss ◽  
Stephen Klimke ◽  
Takuya Shiga ◽  
Roman Boca ◽  
...  

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