FR2007490A1 - Electrical contact of cdo/ag with integrally bonded layer - of ag or other metal - Google Patents

Electrical contact of cdo/ag with integrally bonded layer - of ag or other metal

Info

Publication number
FR2007490A1
FR2007490A1 FR6912135A FR6912135A FR2007490A1 FR 2007490 A1 FR2007490 A1 FR 2007490A1 FR 6912135 A FR6912135 A FR 6912135A FR 6912135 A FR6912135 A FR 6912135A FR 2007490 A1 FR2007490 A1 FR 2007490A1
Authority
FR
France
Prior art keywords
cdo
metal
degrees
electrical contact
integrally bonded
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.)
Withdrawn
Application number
FR6912135A
Other languages
French (fr)
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.)
Duracell Inc USA
Original Assignee
PR Mallory and Co 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
Application filed by PR Mallory and Co Inc filed Critical PR Mallory and Co Inc
Publication of FR2007490A1 publication Critical patent/FR2007490A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • H01H1/0231—Composite material having a noble metal as the basic material provided with a solder layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Contacts (AREA)

Abstract

Cd/Ag alloy strip is first partially oxidised, then thermally bonded to a metal of high electrical and thermal conductivity and finally fully oxidised. The conditions for pre-oxidisation are 15-20 mins. at 800-850 degrees C, for thermal bonding with reduction in thickness 300-450 degrees C. Final oxidation is also at 800-850 degrees C for a time depending upon the thickness of the strip. The metal layer may be Ag, Cu, Al, or Au but is preferably Ag. The two-stage oxidation prevents the formation of a thick layer of CdO at the silver-CdO/Ag interface, with a resultant increase in mechanical strength, giving a product readily brazed or soldered to a support such as stainless steel. CdO composition in range 2-17 wt.%.
FR6912135A 1968-04-22 1969-04-18 Electrical contact of cdo/ag with integrally bonded layer - of ag or other metal Withdrawn FR2007490A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72295668A 1968-04-22 1968-04-22

Publications (1)

Publication Number Publication Date
FR2007490A1 true FR2007490A1 (en) 1970-01-09

Family

ID=24904161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6912135A Withdrawn FR2007490A1 (en) 1968-04-22 1969-04-18 Electrical contact of cdo/ag with integrally bonded layer - of ag or other metal

Country Status (2)

Country Link
DE (1) DE1920412A1 (en)
FR (1) FR2007490A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4883392A (en) * 1972-02-15 1973-11-07
US3874941A (en) * 1973-03-22 1975-04-01 Chugai Electric Ind Co Ltd Silver-metal oxide contact materials

Also Published As

Publication number Publication date
DE1920412A1 (en) 1970-08-27

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Legal Events

Date Code Title Description
ST Notification of lapse