Effect of the additive X-1P on the tribological performance and migration behavior of PFPE lubricant at the head-disk interface

2000 ◽  
Vol 36 (5) ◽  
pp. 2708-2710 ◽  
Author(s):  
Chao-Yuan Chen ◽  
D.B. Bogy ◽  
Tai Cheng ◽  
C. Singh Bhalia
Keyword(s):  
Tribological Performance ◽  
Migration Behavior ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Pfpe Lubricant ◽  
And Migration

Effects of Backbone and Endgroup on the Decomposition Mechanisms of PFPE Lubricants and Their Tribological Performance at the Head-Disk Interface

2000 ◽  
Vol 123 (2) ◽  
pp. 364-367 ◽  
Author(s):  
Chao-Yuan Chen ◽  
David B. Bogy ◽  
C. Singh Bhatia
Keyword(s):  
Removal Rate ◽  
Catalytic Decomposition ◽  
Degradation Process ◽  
Catalytic Degradation ◽  
Carbon Surface ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Pfpe Lubricant ◽  
Carbon Coated ◽  
Chemical Studies

Tribo-chemical studies of the lubricant endgroup effect on the tribology of the head-disk interface were conducted using carbon disks coated with PFPE lubricant. The studies involved drag tests with uncoated and carbon-coated Al2O3-TiC sliders in an ultrahigh-vacuum (UHV) tribochamber. The UHV drag tests show that a good lubricant should have one active OH endgroup and one nonactive endgroup. The active one insures the lubricant is adsorbed very well onto the disk carbon surface, resulting in a lower removal rate of the lubricants during the contact sliding. The nonactive one prevents the catalytic decomposition of the lubricant in the presence of the Al2O3 surface of the uncoated slider. The studies also demonstrate that the catalytic degradation process of ZDOL in the presence of Lewis acid occurs most readily at the acetal units -O-CF2-O within the internal backbones (CF2O and CF2CF2O) instead of the endgroup functionals. Therefore, demnum, without any acetal units, experiences less catalytic degradation with the uncoated Al2O3/TiC sliders as compared to ZDOL.

1308 Vapor lubrication of PFPE lubricant to head disk interface

2011 ◽  
Vol 2011.86 (0) ◽  
pp. _13-8_
Author(s):  
Takahiko Okano ◽  
Norio TAGAWA ◽  
Hiroshi TANI
Keyword(s):  
Head Disk Interface ◽  
Disk Interface ◽  
Pfpe Lubricant ◽  
Vapor Lubrication

Effect of media overcoat on van der Waals interaction at the head–disk interface

2005 ◽  
Vol 97 (12) ◽  
pp. 126106 ◽  
Author(s):  
Raymond R. Dagastine ◽  
Lee R. White ◽  
Paul M. Jones ◽  
Yiao-Tee Hsia
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Interaction ◽  
Head Disk Interface ◽  
Disk Interface

Head–Disk Interface Materials Issues in Heat-Assisted Magnetic Recording

2014 ◽  
Vol 50 (3) ◽  
pp. 137-143 ◽  
Author(s):  
Bruno Marchon ◽  
Xing-Cai Guo ◽  
Bala Krishna Pathem ◽  
Franck Rose ◽  
Qing Dai ◽  
...  
Keyword(s):  
Magnetic Recording ◽  
Head Disk Interface ◽  
Heat Assisted Magnetic Recording ◽  
Disk Interface ◽  
Interface Materials
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