Stable lubrication is essential to slider/disk interface of computer hard disk drive. Inertlubricant perfluoropolyether （PFPE） on magnetic hard disk in computer is still prone to catalyticdecomposition by Al<sub&...Stable lubrication is essential to slider/disk interface of computer hard disk drive. Inertlubricant perfluoropolyether （PFPE） on magnetic hard disk in computer is still prone to catalyticdecomposition by Al<sub>2</sub>O<sub>3</sub>, which is one of the materials in slider. A partial fluorinated hexaphenoxycyclotriphosphazene chemical, X-1 P, was analyzed to research on its function to reduce the cata-lytic decomposition of lubricant. The surface free energy of X-1 P coated on head surface was alsoinvestigated. Contact start-stop （CSS） tester was employed to investigate the reflow effective ofX-1 P on lubricant PFPE. Results indicate that thermal stability and reflow of lubricant will be im-proved in the presence of X-1 P on the slider.展开更多
The characterization of sub-micron features and particles between hard disk interface(HDI) is becoming even more important to the hard disk industry in the fields of corrosion, tribologyand the contamination. In this ...The characterization of sub-micron features and particles between hard disk interface(HDI) is becoming even more important to the hard disk industry in the fields of corrosion, tribologyand the contamination. In this paper, media scratch and particles are characterized with AES,TOF-SIMS, SEM/EDX and LPC. The main causes resulted in serious media scratch have beenanalyzed and discussed.展开更多
Lubricant on magnetic hard disk is essential to the stable lubrication at the head/diskinterface of the computer hard disk drive, The depletion phenomenon of the perfluoropolyalkylether(PFPE) lubricant ZDOL caused by ...Lubricant on magnetic hard disk is essential to the stable lubrication at the head/diskinterface of the computer hard disk drive, The depletion phenomenon of the perfluoropolyalkylether(PFPE) lubricant ZDOL caused by the head was investigated. FC722, a type ofpoly(fiuoroalkylmethacrylate) used as anti-wetting-agent (AWA) on the magnetic head, and its ef-fect on reducing lubricant depletion was study. Time-of-flight secondary ion mass spectrometer(TOF-SIMS) was used to characterize the lubricant ZDOL and AWA. TOF-SIMS results suggestthat the lubricant depletion should be due to dynamic friction between the magnetic head and diskduring the head flying or seeking over the disk surface, the amount of lubricant picked up by thehead varying with the different flying height. The AWA coating layer on head obviously reduces theamount of lubricant picked-up. The possible molecular interaction mechanics of AWA and ZDOLwith DLC overcoat of the head was discussed.展开更多
文摘Stable lubrication is essential to slider/disk interface of computer hard disk drive. Inertlubricant perfluoropolyether （PFPE） on magnetic hard disk in computer is still prone to catalyticdecomposition by Al<sub>2</sub>O<sub>3</sub>, which is one of the materials in slider. A partial fluorinated hexaphenoxycyclotriphosphazene chemical, X-1 P, was analyzed to research on its function to reduce the cata-lytic decomposition of lubricant. The surface free energy of X-1 P coated on head surface was alsoinvestigated. Contact start-stop （CSS） tester was employed to investigate the reflow effective ofX-1 P on lubricant PFPE. Results indicate that thermal stability and reflow of lubricant will be im-proved in the presence of X-1 P on the slider.
文摘The characterization of sub-micron features and particles between hard disk interface(HDI) is becoming even more important to the hard disk industry in the fields of corrosion, tribologyand the contamination. In this paper, media scratch and particles are characterized with AES,TOF-SIMS, SEM/EDX and LPC. The main causes resulted in serious media scratch have beenanalyzed and discussed.
文摘Lubricant on magnetic hard disk is essential to the stable lubrication at the head/diskinterface of the computer hard disk drive, The depletion phenomenon of the perfluoropolyalkylether(PFPE) lubricant ZDOL caused by the head was investigated. FC722, a type ofpoly(fiuoroalkylmethacrylate) used as anti-wetting-agent (AWA) on the magnetic head, and its ef-fect on reducing lubricant depletion was study. Time-of-flight secondary ion mass spectrometer(TOF-SIMS) was used to characterize the lubricant ZDOL and AWA. TOF-SIMS results suggestthat the lubricant depletion should be due to dynamic friction between the magnetic head and diskduring the head flying or seeking over the disk surface, the amount of lubricant picked up by thehead varying with the different flying height. The AWA coating layer on head obviously reduces theamount of lubricant picked-up. The possible molecular interaction mechanics of AWA and ZDOLwith DLC overcoat of the head was discussed.
