IT938587B - Processo di ossidazione per leghe cobalto nichel - Google Patents

Processo di ossidazione per leghe cobalto nichel

Info

Publication number
IT938587B
IT938587B IT7499/71A IT749971A IT938587B IT 938587 B IT938587 B IT 938587B IT 7499/71 A IT7499/71 A IT 7499/71A IT 749971 A IT749971 A IT 749971A IT 938587 B IT938587 B IT 938587B
Authority
IT
Italy
Prior art keywords
oxidation process
nickel alloys
cobalt nickel
cobalt
alloys
Prior art date
Application number
IT7499/71A
Other languages
English (en)
Original Assignee
Ncr Co
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
Application filed by Ncr Co filed Critical Ncr Co
Application granted granted Critical
Publication of IT938587B publication Critical patent/IT938587B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/46—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/58—Treatment of other metallic material
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
IT7499/71A 1970-07-23 1971-07-20 Processo di ossidazione per leghe cobalto nichel IT938587B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5767170A 1970-07-23 1970-07-23

Publications (1)

Publication Number Publication Date
IT938587B true IT938587B (it) 1973-01-25

Family

ID=22012034

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7499/71A IT938587B (it) 1970-07-23 1971-07-20 Processo di ossidazione per leghe cobalto nichel

Country Status (10)

Country Link
US (1) US3674554A (it)
JP (1) JPS5030443B1 (it)
AU (1) AU3114771A (it)
BE (1) BE770367A (it)
CA (1) CA943440A (it)
DE (1) DE2135899C3 (it)
FR (1) FR2099536B1 (it)
GB (1) GB1298536A (it)
IT (1) IT938587B (it)
ZA (1) ZA714618B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050901A (it) * 1973-09-04 1975-05-07
US4029541A (en) * 1974-07-05 1977-06-14 Ampex Corporation Magnetic recording disc of improved durability having tin-nickel undercoating
DE2608022C2 (de) 1976-02-27 1984-03-29 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung magnetischer Aufzeichnungsträger mit verschleißfester Oberfläche
FR2473209A1 (fr) * 1980-01-08 1981-07-10 Sagem Procede pour former une couche de protection sur une couche magnetique et couche magnetique protegee obtenue par ce procede
JPS57191830A (en) * 1981-05-22 1982-11-25 Sony Corp Magnetic recording medium
GB8718010D0 (en) * 1986-08-21 1987-09-03 Ici Plc Surface treatment for recording media
GB2309980B (en) * 1996-02-06 1998-12-16 Abbey Treatment of ferrous metal surfaces
CN112919896B (zh) * 2020-12-28 2022-01-18 横店集团东磁股份有限公司 一种高致密度永磁铁氧体材料的制备方法

Also Published As

Publication number Publication date
FR2099536A1 (it) 1972-03-17
CA943440A (en) 1974-03-12
BE770367A (fr) 1971-12-01
FR2099536B1 (it) 1976-04-02
AU3114771A (en) 1973-01-18
JPS5030443B1 (it) 1975-10-01
ZA714618B (en) 1972-07-26
DE2135899C3 (de) 1975-09-25
US3674554A (en) 1972-07-04
DE2135899B2 (de) 1975-02-06
GB1298536A (en) 1972-12-06
DE2135899A1 (de) 1972-02-17

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