Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication

An advanced head disk interface (HDI) system assisted by gas perfluoropolyether (PFPE) lubrication is discussed in this paper. It is known that lubricant spins off at a high rotation speed and high temperature. Lubricant redistribution after long-term seeking operation with near-contact flying has b...

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Autores principales:	Hiroyuki Matsumoto, Hiroshi Tani
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2011
Materias:	lubrication head disk interface perfluoropolyether reliability Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/0c2e3661faaa458eaca4978f99e9b6a1
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id	oai:doaj.org-article:0c2e3661faaa458eaca4978f99e9b6a1
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spelling	oai:doaj.org-article:0c2e3661faaa458eaca4978f99e9b6a12021-11-05T09:26:17ZAdvanced Head Disk Interface System Assisted by Gas PFPE Lubrication1881-219810.2474/trol.6.96https://doaj.org/article/0c2e3661faaa458eaca4978f99e9b6a12011-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/6/1/6_1_96/_pdf/-char/enhttps://doaj.org/toc/1881-2198An advanced head disk interface (HDI) system assisted by gas perfluoropolyether (PFPE) lubrication is discussed in this paper. It is known that lubricant spins off at a high rotation speed and high temperature. Lubricant redistribution after long-term seeking operation with near-contact flying has been studied. The spin-off and redistribution of lubricant are serious problems for the reliability of hard disk drives (HDDs). An HDI system is proposed that exhibits high performance without lubricant spin-off and redistribution; that is, it allows only a small amount of lubricant to drip on the recirculation filter in the head disk assembly (HDA). This lubricant evaporates in the HDI at a high temperature, and the lubricant gas is adsorbed on the disk surface. Consequently, the thickness of the lubricant layer decreases because of spin-off or degradation. As a result, the spin-off, redistribution, and head contamination are significantly reduced. The lubricant can be maintained for a long time on the magnetic disk. In this study, we focused on the reduction of head contamination by gas lubrication. We confirmed that gas lubrication reduced head contamination caused by long-term HDD operation.Hiroyuki MatsumotoHiroshi TaniJapanese Society of Tribologistsarticlelubricationhead disk interfaceperfluoropolyetherreliabilityPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 6, Iss 1, Pp 96-100 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	lubrication head disk interface perfluoropolyether reliability Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	lubrication head disk interface perfluoropolyether reliability Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Hiroyuki Matsumoto Hiroshi Tani Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication
description	An advanced head disk interface (HDI) system assisted by gas perfluoropolyether (PFPE) lubrication is discussed in this paper. It is known that lubricant spins off at a high rotation speed and high temperature. Lubricant redistribution after long-term seeking operation with near-contact flying has been studied. The spin-off and redistribution of lubricant are serious problems for the reliability of hard disk drives (HDDs). An HDI system is proposed that exhibits high performance without lubricant spin-off and redistribution; that is, it allows only a small amount of lubricant to drip on the recirculation filter in the head disk assembly (HDA). This lubricant evaporates in the HDI at a high temperature, and the lubricant gas is adsorbed on the disk surface. Consequently, the thickness of the lubricant layer decreases because of spin-off or degradation. As a result, the spin-off, redistribution, and head contamination are significantly reduced. The lubricant can be maintained for a long time on the magnetic disk. In this study, we focused on the reduction of head contamination by gas lubrication. We confirmed that gas lubrication reduced head contamination caused by long-term HDD operation.
format	article
author	Hiroyuki Matsumoto Hiroshi Tani
author_facet	Hiroyuki Matsumoto Hiroshi Tani
author_sort	Hiroyuki Matsumoto
title	Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication
title_short	Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication
title_full	Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication
title_fullStr	Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication
title_full_unstemmed	Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication
title_sort	advanced head disk interface system assisted by gas pfpe lubrication
publisher	Japanese Society of Tribologists
publishDate	2011
url	https://doaj.org/article/0c2e3661faaa458eaca4978f99e9b6a1
work_keys_str_mv	AT hiroyukimatsumoto advancedheaddiskinterfacesystemassistedbygaspfpelubrication AT hiroshitani advancedheaddiskinterfacesystemassistedbygaspfpelubrication
_version_	1718444328658927616

Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication

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