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GB1444199A - Method of producing a silver cadmium oxide electrically conductive composite material - Google Patents

Method of producing a silver cadmium oxide electrically conductive composite material

Info

Publication number
GB1444199A
GB1444199A GB2640674A GB2640674A GB1444199A GB 1444199 A GB1444199 A GB 1444199A GB 2640674 A GB2640674 A GB 2640674A GB 2640674 A GB2640674 A GB 2640674A GB 1444199 A GB1444199 A GB 1444199A
Authority
GB
United Kingdom
Prior art keywords
powder
composite material
cadmium
silver
alloy
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
GB2640674A
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 GB2640674A priority Critical patent/GB1444199A/en
Priority to DE19752521561 priority patent/DE2521561A1/en
Priority to FR7518257A priority patent/FR2274699A1/en
Priority to IT24307/75A priority patent/IT1038980B/en
Priority to JP50071811A priority patent/JPS5111194A/en
Publication of GB1444199A publication Critical patent/GB1444199A/en
Priority to MX78100360U priority patent/MX3554E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Manufacture Of Switches (AREA)
  • Conductive Materials (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

1444199 Ag-CdO composite material SQUARE D CO 9 April 1975 [14 June 1974] 26406/74 Heading C7D A Ag-Cd O electrically conductive composite material is produced by mixing cadmium metal powder and silver metal powder, heating the mixture in a mildly reducing atmosphere such that oxidation of the cadmium metal is prevented to produce a silver-cadmium alloy in powder form and internally oxidizing the alloy powder to form cadmium oxide. The powder mixture may comprise silver powder particles of less than 350 British Standard mesh and may be produced in a two stage mixing process with an intermediate sieving step and may be heated at 200 to 700‹C in an atmosphere of 97%N 2 3%H 2 and oxidized at a temperature of 180‹C to the melting point of the alloy in air or oxygen. The resulting internally oxidized powder may contain up to 30 wt. per cent Cd O particles the majority of which are less than or equal to 20 microns and may be compacted at 5 to 50 tons per square inch sintered in air, oxygen, inert gas, vacuum or mildly reducing atmosphere such that the Cd O is unaffected at 600 C to the melting point of the powdered material, carried at 60 tons/square inch, resintered, recarried, hot or cold-rolled or extruded into strip or wire form and formed into contact pads or rivets.
GB2640674A 1974-06-14 1974-06-14 Method of producing a silver cadmium oxide electrically conductive composite material Expired GB1444199A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB2640674A GB1444199A (en) 1974-06-14 1974-06-14 Method of producing a silver cadmium oxide electrically conductive composite material
DE19752521561 DE2521561A1 (en) 1974-06-14 1975-05-15 METHOD FOR PRODUCING AN ELECTRICALLY CONDUCTIVE MATERIAL
FR7518257A FR2274699A1 (en) 1974-06-14 1975-06-11 PROCESS FOR THE MANUFACTURING OF AN ELECTRIC CONDUCTIVE COMPOSITE MATERIAL BASED ON CADMIUM OXIDE AND SILVER AND MATERIALS OBTAINED
IT24307/75A IT1038980B (en) 1974-06-14 1975-06-12 METHOD OF PRODUCTION OF AN ELECTRICALLY COMPOSITE MATERIAL WITH DUCTIVE SILVER OXIDE OF CADMIUM
JP50071811A JPS5111194A (en) 1974-06-14 1975-06-13 Gin sankakadomiumudendoseifukugozairyono seizohoho
MX78100360U MX3554E (en) 1974-06-14 1978-06-13 IMPROVED METHOD FOR PRODUCING ELECTRICAL CONTACT MATERIAL OF SILVER AND CADMIUM OXIDE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2640674A GB1444199A (en) 1974-06-14 1974-06-14 Method of producing a silver cadmium oxide electrically conductive composite material

Publications (1)

Publication Number Publication Date
GB1444199A true GB1444199A (en) 1976-07-28

Family

ID=10243150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2640674A Expired GB1444199A (en) 1974-06-14 1974-06-14 Method of producing a silver cadmium oxide electrically conductive composite material

Country Status (6)

Country Link
JP (1) JPS5111194A (en)
DE (1) DE2521561A1 (en)
FR (1) FR2274699A1 (en)
GB (1) GB1444199A (en)
IT (1) IT1038980B (en)
MX (1) MX3554E (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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1397319A (en) * 1972-08-25 1975-06-11 Square D Co Electrically conductive materials
GB1449746A (en) * 1974-06-07 1976-09-15 Square D Co Method of producing a silver-cadmium oxide electricylly conduc tive composite 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
FR2274699A1 (en) 1976-01-09
MX3554E (en) 1981-03-02
JPS5111194A (en) 1976-01-29
DE2521561A1 (en) 1976-01-02
IT1038980B (en) 1979-11-30
IT7524307A1 (en) 1976-12-12
JPS5416443B2 (en) 1979-06-22
FR2274699B1 (en) 1978-09-22

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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