公开(公告)号：JPH02230510A

公开(公告)日：1990-09-12

申请号：JP1513590

申请日：1990-01-26

Applicant: IBM

Inventor： RICHIYAADO HENRII AAREETO ,  JIEEMUZU KENTO HAWAADO ,  KUWANGU KON KIMU ,  IAN RIYUUZU SANDAAZU ,  ANSONII WAI U

IPC: G11B5/64 ,  G11B5/66 ,  G11B5/72 ,  G11B5/725 ,  G11B5/82

Abstract: PURPOSE: To make it possible for a slider to come into contact with a disk at the time of CSS action without damaging the any parts in a disk device by adding specific additives to a carbon film thereby improving the end wear property of the disk. CONSTITUTION: The film of the magnetic recording disk consisting of a thin-film metal alloy has amorphous carbon or carbon contg. hydrogen and a protective film contg. iron Fe, tungsten W or tungsten carbide WC has the relatively smooth and flat surface of the carbon. The smooth carbon surface has the many lumps of the additives slightly projecting above the surface. These lumps conceivably provide low static wear as the nature of the protective film. Such disk is applicable even to the hard disk device of a contact-start-stop CSS type using the disk of the thin-film metal alloy having the protective film. As a result, the effects of improving the protective film of the thin-film disk, solving the problem of sticking of the head and improving the durability are obtd.

公开(公告)号：JPS5494532A

公开(公告)日：1979-07-26

申请号：JP15276778

申请日：1978-12-12

Applicant: IBM

Inventor： JIYOOJI CHIYOUNII ,  JIEROOMU DAGURASU SUUOOREN ,  ANSONII WAI U

IPC: B05D7/14 ,  B05D1/18 ,  B05D1/20 ,  B05D5/08 ,  B05D7/24 ,  C07C57/52