GB1012584A - Improvements in processes for the preparation of alloys with an oxide dispersed phase - Google Patents

Improvements in processes for the preparation of alloys with an oxide dispersed phase

Info

Publication number
GB1012584A
GB1012584A GB1777564A GB1777564A GB1012584A GB 1012584 A GB1012584 A GB 1012584A GB 1777564 A GB1777564 A GB 1777564A GB 1777564 A GB1777564 A GB 1777564A GB 1012584 A GB1012584 A GB 1012584A
Authority
GB
United Kingdom
Prior art keywords
alloy
powders
sintered
added
air
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1777564A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Comptoir Lyon-Alemand Louyot and Cie
Original Assignee
Comptoir Lyon-Alemand Louyot and Cie
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 Comptoir Lyon-Alemand Louyot and Cie filed Critical Comptoir Lyon-Alemand Louyot and Cie
Publication of GB1012584A publication Critical patent/GB1012584A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
    • H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
    • H01H1/02374—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component CdO
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1078—Alloys containing non-metals by internal oxidation of material in solid state
    • 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
    • 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
    • C22C32/001—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 with only oxides
    • C22C32/0015—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 with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
  • Conductive Materials (AREA)

Abstract

A sintered alloy body containing an oxide phase, such as a Ag-CdO alloy used for electrical contacts is produced by heating a compact of the mixed metal powders in oxygen to form the required oxide phase followed by recompaction and sintering. Metals which form stable oxides such as Mg, Al, Si, Be, Ca, Ti and Na may be added to the Ag and Cd powders and in addition Co may also be added either as the metal or as the nitrate. The compressed powder mixture may be partially sintered e.g. at 500 DEG C. in hydrogen prior to the oxidizing treatment at 800 DEG C. in air. Final sintering e.g. at 700 DEG C. or 800 DEG C. is carried out in air and the sintered compact may then be rolled or extruded. A Ag-Mg alloy may be used in place of Ag. Several examples are given and in a modification of the process coated articles may be formed by compressing superposed layers of different powders e.g. Ag-CdO alloy may be formed on a Ag strip.
GB1777564A 1963-04-29 1964-04-29 Improvements in processes for the preparation of alloys with an oxide dispersed phase Expired GB1012584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR932986A FR1363294A (en) 1963-04-29 1963-04-29 Improvements in pseudo-alloy preparation processes

Publications (1)

Publication Number Publication Date
GB1012584A true GB1012584A (en) 1965-12-08

Family

ID=8802611

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1777564A Expired GB1012584A (en) 1963-04-29 1964-04-29 Improvements in processes for the preparation of alloys with an oxide dispersed phase

Country Status (4)

Country Link
DE (1) DE1608760A1 (en)
ES (1) ES299269A1 (en)
FR (1) FR1363294A (en)
GB (1) GB1012584A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1558689B1 (en) * 1967-01-03 1972-03-16 Texas Instruments Inc Alloy for erosion-proof electrical contacts
EP0488996A2 (en) * 1987-12-12 1992-06-03 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1558689B1 (en) * 1967-01-03 1972-03-16 Texas Instruments Inc Alloy for erosion-proof electrical contacts
DE1558666B2 (en) * 1967-01-03 1972-05-31 Texas Instruments Inc ALLOY FOR BURN-PROOF ELECTRICAL CONTACTS
EP0488996A2 (en) * 1987-12-12 1992-06-03 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same
EP0488996A3 (en) * 1987-12-12 1992-07-08 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same

Also Published As

Publication number Publication date
FR1363294A (en) 1964-06-12
ES299269A1 (en) 1964-06-16
DE1608760A1 (en) 1970-12-10

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