Zobrazeno 1 - 10
of 385
pro vyhledávání: '"Myung S. Jhon"'
Publikováno v:
AIP Advances, Vol 7, Iss 5, Pp 056514-056514-7 (2017)
Heat assisted magnetic recording (HAMR) which locally reduces coercivity with a laser pulse, is currently the most promising technology to achieve areal density beyond 10 Tbit/in2. However, due to the extreme operating condition of HAMR, the head-dis
Externí odkaz:
https://doaj.org/article/ca9b5f46591743aca7830b1278c32b2f
Publikováno v:
AIP Advances, Vol 7, Iss 5, Pp 056520-056520-5 (2017)
During the operation of hard disk drive (HDD), the perfluoropolyether (PFPE) lubricant experiences elastic or viscous shear/elongation deformations, which affect the performance and reliability of the HDD. Therefore, the viscoelastic responses of PFP
Externí odkaz:
https://doaj.org/article/22a82dd996884441beac065414497c14
Publikováno v:
Advances in Tribology, Vol 2013 (2013)
The challenges in designing future head disk interface (HDI) demand efficient theoretical modeling tools with flexibility in investigating various combinations of perfluoropolyether (PFPE) and carbon overcoat (COC) materials. For broad range of time
Externí odkaz:
https://doaj.org/article/9577053d554344a893d16fec75627a80
Publikováno v:
IEEE Transactions on Magnetics. 52:1-4
During the intermittent contact between the head and the disk of the hard disk drive (HDD), the perfluoropolyether (PFPE) lubricant experiences shear/elongation deformation. Therefore, the molecular rheology of PFPE becomes critically important in de
Publikováno v:
Soft Matter. 12:2816-2825
Molecularly thin perfluoropolyether (PFPE) has been used extensively as a high-performance lubricant in various applications and, more importantly, on carbon overcoats to enhance the reliability and lubrication of micro-/nanoelectro-mechanical system
Publikováno v:
IEEE Transactions on Magnetics. 51:1-4
Due to the nanoscale dimensions of the lubricant, overcoat, and media layers, the usual fast and efficient continuum models, such as Fourier law, fail to describe the thermal effects occurring during the heat-assisted magnetic recording (HAMR) operat
Publikováno v:
IEEE Transactions on Magnetics. 51:1-4
As the head-media spacing of head-disk interface (HDI) is reduced to 7 nm, interfacial configurations of molecularly thin perfluoropolyether (PFPE) lubricant film such as surface morphology and film conformation become critical for the stability of h
Autor:
Myung S. Jhon, Pil Seung Chung
Publikováno v:
IEEE Transactions on Magnetics. 51:1-4
Increasing magnetic recording density requires reduction in head-media spacing (HMS) down to 7 nm and introduction of new recording techniques (e.g., heat-assisted magnetic recording). Future head-disk interface (HDI) configuration demands stable pro
Accurate estimation of surface wettability for various degrees of hydrophobicity becomes increasingly important in the molecular design of membrane. In this paper, we develop simple yet physically realistic model for estimating contact angle via hybr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::449bff1bb4d5b4ec546aa4a8fac94a1c
Publikováno v:
IEEE Transactions on Magnetics. 50:1-4
Heat-assisted magnetic recording (HAMR) is one of the most promising techniques to extend the recording density in hard disk drives beyond 4 Tb/in 2 . This places a range of stringent operating requirements in the head disk interface, including heati