Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives

Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives

Lower molecular weight Z-Tetraol films exhibit increased mechanical spacing in the slider-disk interface due to a lower z-profile. An increased resistance to lubricant disturbance on the disk surface (e.g., lube moguls) with decreasing film thickness is attributed to an increasing contribution from...

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Bibliographic Details
Main Authors: R. J. Waltman, H. Deng
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Advances in Tribology
Online Access:http://dx.doi.org/10.1155/2012/964089
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spelling doaj-037bc6fc55cb4a02902b65ac1727eaf92020-11-25T01:56:37ZengHindawi LimitedAdvances in Tribology1687-59151687-59232012-01-01201210.1155/2012/964089964089Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk DrivesR. J. Waltman0H. Deng1Media Development, HGST Western Digital, 5601 Great Oaks Parkway, San Jose, CA 95119-1003, USAMedia Development, HGST Western Digital, 5601 Great Oaks Parkway, San Jose, CA 95119-1003, USALower molecular weight Z-Tetraol films exhibit increased mechanical spacing in the slider-disk interface due to a lower z-profile. An increased resistance to lubricant disturbance on the disk surface (e.g., lube moguls) with decreasing film thickness is attributed to an increasing contribution from the polar component of the disjoining pressure. Evaporative loss at temperatures typically encountered in a hard-disk drive also increases with decreasing molecular weight but is strongly dependent on the initial bonded fraction.http://dx.doi.org/10.1155/2012/964089
collection DOAJ
language English
format Article
sources DOAJ
author R. J. Waltman
H. Deng
spellingShingle R. J. Waltman
H. Deng
Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives
Advances in Tribology
author_facet R. J. Waltman
H. Deng
author_sort R. J. Waltman
title Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives
title_short Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives
title_full Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives
title_fullStr Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives
title_full_unstemmed Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives
title_sort low molecular weight z-tetraol boundary lubricant films in hard disk drives
publisher Hindawi Limited
series Advances in Tribology
issn 1687-5915
1687-5923
publishDate 2012-01-01
description Lower molecular weight Z-Tetraol films exhibit increased mechanical spacing in the slider-disk interface due to a lower z-profile. An increased resistance to lubricant disturbance on the disk surface (e.g., lube moguls) with decreasing film thickness is attributed to an increasing contribution from the polar component of the disjoining pressure. Evaporative loss at temperatures typically encountered in a hard-disk drive also increases with decreasing molecular weight but is strongly dependent on the initial bonded fraction.
url http://dx.doi.org/10.1155/2012/964089
work_keys_str_mv AT rjwaltman lowmolecularweightztetraolboundarylubricantfilmsinharddiskdrives
AT hdeng lowmolecularweightztetraolboundarylubricantfilmsinharddiskdrives
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