HK1020075A1 - Magnetic disk substrates formed of ceramic-metal matrix composites with or without metal cladding. - Google Patents

Magnetic disk substrates formed of ceramic-metal matrix composites with or without metal cladding.

Info

Publication number
HK1020075A1
HK1020075A1 HK99105198A HK99105198A HK1020075A1 HK 1020075 A1 HK1020075 A1 HK 1020075A1 HK 99105198 A HK99105198 A HK 99105198A HK 99105198 A HK99105198 A HK 99105198A HK 1020075 A1 HK1020075 A1 HK 1020075A1
Authority
HK
Hong Kong
Prior art keywords
ceramic
metal
metal matrix
magnetic disk
cladding
Prior art date
Application number
HK99105198A
Other languages
English (en)
Inventor
Robin A Carden
Raymond L Stanish
William C Harrigan
Original Assignee
Dyson Us Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/674,140 external-priority patent/US5712014A/en
Priority claimed from US08/791,831 external-priority patent/US5895696A/en
Priority claimed from US08/795,384 external-priority patent/US5948495A/en
Application filed by Dyson Us Holdings Inc filed Critical Dyson Us Holdings Inc
Publication of HK1020075A1 publication Critical patent/HK1020075A1/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2204/00—End product comprising different layers, coatings or parts of cermet

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Chemically Coating (AREA)
  • Soft Magnetic Materials (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
HK99105198A 1996-07-01 1999-11-11 Magnetic disk substrates formed of ceramic-metal matrix composites with or without metal cladding. HK1020075A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/674,140 US5712014A (en) 1996-07-01 1996-07-01 Metal matrix compositions for substrates used to make magnetic disks for hard disk drives
US08/791,831 US5895696A (en) 1996-07-01 1997-01-30 Metal-clad ceramic-metal matrix composites for magnetic disk substrates for hard disk drives
US08/795,384 US5948495A (en) 1996-07-01 1997-02-04 Ceramic-metal matrix composites for magnetic disk substrates for hard disk drives
PCT/US1997/009399 WO1998000572A1 (en) 1996-07-01 1997-05-21 Magnetic disk substrates formed of ceramic-metal matrix composites with or without metal cladding

Publications (1)

Publication Number Publication Date
HK1020075A1 true HK1020075A1 (en) 2000-03-10

Family

ID=27418279

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99105198A HK1020075A1 (en) 1996-07-01 1999-11-11 Magnetic disk substrates formed of ceramic-metal matrix composites with or without metal cladding.

Country Status (9)

Country Link
EP (1) EP0914488B1 (xx)
JP (1) JP2000514501A (xx)
AT (1) ATE286297T1 (xx)
CA (1) CA2259483A1 (xx)
DE (1) DE69732112T2 (xx)
ES (1) ES2235237T3 (xx)
HK (1) HK1020075A1 (xx)
PT (1) PT914488E (xx)
WO (1) WO1998000572A1 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100449616C (zh) 1999-02-12 2009-01-07 通用电气公司 数据存储介质及其形成方法、压印衬底及检索数据的方法
FR2882948B1 (fr) 2005-03-14 2007-05-04 Forges De Bologne Soc Par Acti Procede ameliore de preparation de composites a matrice metallique et dispositif de mise en oeuvre d'un tel procede
WO2018118095A1 (en) * 2016-12-23 2018-06-28 Intel Corporation Multiferroic recording media and readout sensor
WO2018118093A1 (en) * 2016-12-23 2018-06-28 Intel Corporation Quaternary and six state magnetic media and read heads

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623388A (en) * 1983-06-24 1986-11-18 Inco Alloys International, Inc. Process for producing composite material
US4605440A (en) * 1985-05-06 1986-08-12 The United States Of America As Represented By The United States Department Of Energy Boron-carbide-aluminum and boron-carbide-reactive metal cermets
DE3873016T2 (de) * 1987-10-23 1993-03-11 Mitsubishi Rayon Co Optisch aktive, delta-valerolacton-ring enthaltende verbindung und dieselbe enthaltende fluessigkristalline zusammensetzung.
US5486223A (en) * 1994-01-19 1996-01-23 Alyn Corporation Metal matrix compositions and method of manufacture thereof
US5480695A (en) * 1994-08-10 1996-01-02 Tenhover; Michael A. Ceramic substrates and magnetic data storage components prepared therefrom
US5780164A (en) * 1994-12-12 1998-07-14 The Dow Chemical Company Computer disk substrate, the process for making same, and the material made therefrom

Also Published As

Publication number Publication date
CA2259483A1 (en) 1998-01-08
DE69732112D1 (de) 2005-02-03
EP0914488B1 (en) 2004-12-29
PT914488E (pt) 2005-02-28
DE69732112T2 (de) 2005-12-08
JP2000514501A (ja) 2000-10-31
ES2235237T3 (es) 2005-07-01
WO1998000572A1 (en) 1998-01-08
ATE286297T1 (de) 2005-01-15
EP0914488A4 (en) 2000-10-04
EP0914488A1 (en) 1999-05-12

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20090521