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GB1397319A - Electrically conductive materials - Google Patents

Electrically conductive materials

Info

Publication number
GB1397319A
GB1397319A GB3966472A GB3966472A GB1397319A GB 1397319 A GB1397319 A GB 1397319A GB 3966472 A GB3966472 A GB 3966472A GB 3966472 A GB3966472 A GB 3966472A GB 1397319 A GB1397319 A GB 1397319A
Authority
GB
United Kingdom
Prior art keywords
oxide
metal
electrically conductive
silver
conductive materials
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
GB3966472A
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.)
Schneider Electric USA Inc
Original Assignee
Square D 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 Square D Co filed Critical Square D Co
Priority to GB3966472A priority Critical patent/GB1397319A/en
Priority to DE2341729A priority patent/DE2341729C3/en
Priority to FR7330555A priority patent/FR2197210B1/fr
Priority to JP9448473A priority patent/JPS5443470B2/ja
Priority to CH32374A priority patent/CH599658A5/en
Priority to BE139779A priority patent/BE809711A/en
Publication of GB1397319A publication Critical patent/GB1397319A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/001—Starting from powder comprising reducible metal compounds
    • 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
    • C22C5/00—Alloys based on noble metals
    • C22C5/06—Alloys based on silver

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Conductive Materials (AREA)
  • Contacts (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture Of Switches (AREA)

Abstract

1397319 Producing oxide-containing alloys SQUARED CO 30 July 1973 [25 Aug 1972] 39664/72 Heading C7D Electrically conductive materials containing a first metal and an oxide of a second metal are produced by mixing the powdered first metal and second metal oxide, heating in a reducing atmosphere to form an alloy of the two metals and internally oxidizing the second metal. Examples include the preparation of silver/cadmium oxide, or silver with the oxides of tin or zinc; and copper with either cadmium oxide or zinc oxide. In an alternative embodiment, mercury oxide can be incorporated in the starting material and is reduced/oxidized in the same way as the second metal oxide; also an alkali metal oxide which remains unchanged throughout can be utilized. In the case of e.g. Ag/CdO, the reduction temperature should be between 200 and 700‹C to minimize sintering, while the internal oxidation is performed at 500 to 700‹C. The resulting particles can be compacted, sintered and coined to form, e.g. electrical contacts.
GB3966472A 1972-08-25 1972-08-25 Electrically conductive materials Expired GB1397319A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB3966472A GB1397319A (en) 1972-08-25 1972-08-25 Electrically conductive materials
DE2341729A DE2341729C3 (en) 1972-08-25 1973-08-17 Process for the production of an electrically conductive composite powder
FR7330555A FR2197210B1 (en) 1972-08-25 1973-08-23
JP9448473A JPS5443470B2 (en) 1972-08-25 1973-08-24
CH32374A CH599658A5 (en) 1972-08-25 1974-01-11 Electrically conducting material, esp. silver contg. cadmium oxide
BE139779A BE809711A (en) 1972-08-25 1974-01-14 COMPOUND MATERIALS CONDUCTING ELECTRICITY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3966472A GB1397319A (en) 1972-08-25 1972-08-25 Electrically conductive materials
CH32374A CH599658A5 (en) 1972-08-25 1974-01-11 Electrically conducting material, esp. silver contg. cadmium oxide

Publications (1)

Publication Number Publication Date
GB1397319A true GB1397319A (en) 1975-06-11

Family

ID=25684220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3966472A Expired GB1397319A (en) 1972-08-25 1972-08-25 Electrically conductive materials

Country Status (6)

Country Link
JP (1) JPS5443470B2 (en)
BE (1) BE809711A (en)
CH (1) CH599658A5 (en)
DE (1) DE2341729C3 (en)
FR (1) FR2197210B1 (en)
GB (1) GB1397319A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609525A (en) * 1981-11-26 1986-09-02 Siemens Aktiengesellschaft Cadmium-free silver and metal oxide composite useful for electrical contacts and a method for its manufacture

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1449746A (en) * 1974-06-07 1976-09-15 Square D Co Method of producing a silver-cadmium oxide electricylly conduc tive composite material
GB1444199A (en) * 1974-06-14 1976-07-28 Square D Co Method of producing a silver cadmium oxide electrically conductive composite material
GB1469976A (en) * 1974-06-15 1977-04-14 Square D Co Method for producing an electrical power contact
US4095977A (en) * 1976-08-13 1978-06-20 Square D Company Material for making electrical contacts, process for making materials, and contacts made with the material
US4502899A (en) * 1981-06-30 1985-03-05 Matsushita Electric Works, Ltd. Electric joint material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609525A (en) * 1981-11-26 1986-09-02 Siemens Aktiengesellschaft Cadmium-free silver and metal oxide composite useful for electrical contacts and a method for its manufacture

Also Published As

Publication number Publication date
BE809711A (en) 1974-05-02
FR2197210B1 (en) 1978-05-26
DE2341729C3 (en) 1979-03-15
DE2341729B2 (en) 1978-07-06
JPS5443470B2 (en) 1979-12-20
CH599658A5 (en) 1978-05-31
JPS49108585A (en) 1974-10-16
DE2341729A1 (en) 1974-03-07
FR2197210A1 (en) 1974-03-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee