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The critical conditions for tribo-demagnetization of perpendicular magnetic recording disk under sliding contact / W. F. Jiang in Transactions of the ASME . Journal of tribology, Vol. 132 N° 2 (Avril 2010) 

Public ISBD [article]  in Transactions of the ASME . Journal of tribology > Vol. 132 N° 2 (Avril 2010) . - 10 p. Titre : The critical conditions for tribo-demagnetization of perpendicular magnetic recording disk under sliding contact Type de document : texte imprimé Auteurs : W. F. Jiang, Auteur ; D. F. Diao, Auteur Année de publication : 2011 Article en page(s) : 10 p. Note générale : Tribology Langues : Anglais (eng) Mots-clés : Demagnetisation  Discs  (structures)  Finite  element  analysis  Magnetic  heads  Perpendicular  magnetic  recording  Stress  effects  Thermomechanical  treatment Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The critical conditions (critical stress and critical temperature) for the demagnetization of perpendicular magnetic recording disks were investigated. A tribo-demagnetization test of a perpendicular magnetic recording disk with a low load ball-on-disk system and the scan of the disk with the magnetic head were sequentially carried out to evaluate the critical force and sliding velocity for the occurrence of demagnetization, and the relationship between the two critical factors. Then, a finite element model using thermomechanical coupling was developed to calculate the critical stress and temperature of the magnetic disk based on the critical force and sliding velocity of the experiment result. Finally, a method based on the tribo-demagnetization test in combination with finite element analysis to calculate the critical conditions for the demagnetization of the perpendicular magnetic recording disk under sliding contact was proposed. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] [article] The critical conditions for tribo-demagnetization of perpendicular magnetic recording disk under sliding contact [texte imprimé] / W. F. Jiang, Auteur ; D. F. Diao, Auteur . - 2011 . - 10 p. Tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 132 N° 2 (Avril 2010) . - 10 p. Mots-clés : Demagnetisation  Discs  (structures)  Finite  element  analysis  Magnetic  heads  Perpendicular  magnetic  recording  Stress  effects  Thermomechanical  treatment Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The critical conditions (critical stress and critical temperature) for the demagnetization of perpendicular magnetic recording disks were investigated. A tribo-demagnetization test of a perpendicular magnetic recording disk with a low load ball-on-disk system and the scan of the disk with the magnetic head were sequentially carried out to evaluate the critical force and sliding velocity for the occurrence of demagnetization, and the relationship between the two critical factors. Then, a finite element model using thermomechanical coupling was developed to calculate the critical stress and temperature of the magnetic disk based on the critical force and sliding velocity of the experiment result. Finally, a method based on the tribo-demagnetization test in combination with finite element analysis to calculate the critical conditions for the demagnetization of the perpendicular magnetic recording disk under sliding contact was proposed. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...]