US3874941A - Silver-metal oxide contact materials - Google Patents
Silver-metal oxide contact materials Download PDFInfo
- Publication number
- US3874941A US3874941A US442632*A US44263274A US3874941A US 3874941 A US3874941 A US 3874941A US 44263274 A US44263274 A US 44263274A US 3874941 A US3874941 A US 3874941A
- Authority
- US
- United States
- Prior art keywords
- alloy
- weight percent
- silver
- electrical contact
- contact material
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 title claims abstract description 26
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title description 11
- 229910044991 metal oxide Inorganic materials 0.000 title description 3
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 25
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 10
- 239000004332 silver Substances 0.000 claims abstract description 10
- 229910052709 silver Inorganic materials 0.000 claims abstract description 9
- 229910052738 indium Inorganic materials 0.000 claims abstract description 8
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 7
- 229910003437 indium oxide Inorganic materials 0.000 description 6
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- NSAODVHAXBZWGW-UHFFFAOYSA-N cadmium silver Chemical compound [Ag].[Cd] NSAODVHAXBZWGW-UHFFFAOYSA-N 0.000 description 2
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical class [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 241000382928 Oxya Species 0.000 description 1
- ASMQPJTXPYCZBL-UHFFFAOYSA-N [O-2].[Cd+2].[Ag+] Chemical class [O-2].[Cd+2].[Ag+] ASMQPJTXPYCZBL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- YZASAXHKAQYPEH-UHFFFAOYSA-N indium silver Chemical compound [Ag].[In] YZASAXHKAQYPEH-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
-
- 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
Definitions
- acteristic of the contact material thus obtained were found to be equal or even superior to those of silvercadmium alloy material having comparable composition. It is found that when the weight percentage of tin While silver-cadmium oxides are popular as a com- 5 falls below 0.5 weight the refractoriness ofthe mateposite contact material. practical examples of the rial is adversely affected on account of the lowered contact material consisting of silver and oxides other oxide concentration. It is also found that addition of than cadmium oxides that may be produced by the more than 2.5 weight "/1 of tin retards the progress of method of internal oxidation are rather few. in effect. the internal oxidation and.
- the Ag-CdO material consisting of silver and cadmium oxides which alloy, the aforementioned elements. such as those of are internally oxidized has excellent antifusibility and. Ills il'tm amily. hil I dde in r k ilm nlh l for this reason. it is considered an indispensable matemilkb the Structure Uniform rial for producing electrical contacts to be used for in- Th0 CllCht properties of the contact material of dustrial devices especially under medium load operatthis invention 1111 LXhlhlwd especially in 611595 ing conditions.
- indium oxides are noticeable mkcs Plucc duc m thC clcvlm-d tcllllwmtul'c Caused y Oncs bchcuusc d u cmmlining as much as 12 are generation. and thus the oxide concentration on the weight pcrccm of indium is internally Oxidimblc amp surface of the material is not lowered as in the case of furthcr bccuusc this all").
- h,1S prcfcmncc Our Silva; 2Q Ag-CdO alloy material and contacts made thereof. cadmium alloy from the view point of combatting the i problem of pollution. This alloy.
- T bl 2 The inventor has made a study of components which can be added to a silver-indium alloy for improving the Samplcs Number of Occurrence of Weld refractory property of indium oxides thereof. and has found that the addition of Sn is effective for the pur' pose.
- indium oxides are precipitated in the silver matrix as compound oxides with Sn with the progress of the internal oxidation. by adding Sn in more than 0.5 weight percent. thus producing the hard contact material dispersed with refractory oxides.
- the sample (3) in the Table 2 represents a product of this invention obtained through the internal oxidation of the material of the composition given in said Table, which was 6 mm in diameter and 2 mm in thickness.
- a composite electrical contact material consisting of an alloy composed of 6 to IE weight percent of indium. and 0.5 to 5 weight percent of tin, the balance being silver. said alloy being formed into a desired configuration and subjected to an internal oxidation.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Contacts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3313373A JPS5536699B2 (enrdf_load_stackoverflow) | 1973-03-22 | 1973-03-22 | |
| JP8070473A JPS5417294B2 (enrdf_load_stackoverflow) | 1973-07-20 | 1973-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3874941A true US3874941A (en) | 1975-04-01 |
Family
ID=26371770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US442632*A Expired - Lifetime US3874941A (en) | 1973-03-22 | 1974-02-14 | Silver-metal oxide contact materials |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3874941A (enrdf_load_stackoverflow) |
| CA (1) | CA1005664A (enrdf_load_stackoverflow) |
| DE (1) | DE2411322C2 (enrdf_load_stackoverflow) |
| FR (1) | FR2222448B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1438044A (enrdf_load_stackoverflow) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050930A (en) * | 1975-06-24 | 1977-09-27 | Sumitomo Electric Industries, Ltd. | Electrical contact material |
| US4053728A (en) * | 1975-10-24 | 1977-10-11 | General Electric Company | Brazed joint between a beryllium-base part and a part primarily of a metal that is retractable with beryllium to form a brittle intermetallic compound |
| US4072515A (en) * | 1973-07-05 | 1978-02-07 | Sumitomo Electric Industries, Ltd. | Electrical contact material |
| US4170471A (en) * | 1978-07-27 | 1979-10-09 | Rockwell International Corporation | Silver alloys for metallization of magnetic bubble domain devices |
| JPS6177211A (ja) * | 1984-08-24 | 1986-04-19 | 中外電気工業株式会社 | コンタクタ−用複合電気接点材 |
| 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 |
| GB2182674A (en) * | 1984-11-08 | 1987-05-20 | Chugai Electric Ind Co Ltd | Electrical contact material |
| US4904317A (en) * | 1988-05-16 | 1990-02-27 | Technitrol, Inc. | Erosion resistant Ag-SnO2 electrical contact material |
| EP0877403A4 (en) * | 1995-10-12 | 1999-08-04 | Omron Tateisi Electronics Co | COUNTER |
| US20040253137A1 (en) * | 2003-06-16 | 2004-12-16 | W.C. Heraeus Gmbh & Co., Kg | Alloy and its use |
| US20050202610A1 (en) * | 2001-06-01 | 2005-09-15 | Sato Sadeo | Method for manufacturing ag-oxide-based electric contact material and product of the same |
| EP1584696A4 (en) * | 2002-08-15 | 2005-10-12 | Tokuriki Honten Company Ltd | MANUFACTURING METHOD FOR ELECTRIC CONTACT MATERIAL ON AG-OXIDBASIS AND ITS PRODUCT |
| CN104493174A (zh) * | 2014-12-30 | 2015-04-08 | 桂林电器科学研究院有限公司 | 一种制备银氧化锡氧化物电触头材料的方法 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3933485A (en) * | 1973-07-20 | 1976-01-20 | Chugai Denki Kogyo Kabushiki-Kaisha | Electrical contact material |
| JPS607328B2 (ja) * | 1977-06-16 | 1985-02-23 | 中外電気工業株式会社 | Ａｇ−ＳｎＯ系合金を使つた複合電気接点 |
| MX149630A (es) * | 1977-06-20 | 1983-12-06 | Chugai Electric Ind Co Ltd | Mejoras en metodo para fabricar un contacto electrico |
| US4150982A (en) * | 1978-03-13 | 1979-04-24 | Chugai Denki Kogyo Kabushiki-Kaisha | AG-Metal oxides electrical contact materials containing internally oxidized indium oxides and/or tin oxides |
| JPS6013051B2 (ja) * | 1978-08-11 | 1985-04-04 | 中外電気工業株式会社 | 銀↓−錫↓−ビスマス系合金を内部酸化した電気接点材料の改良 |
| DE3123357A1 (de) * | 1981-06-12 | 1982-12-30 | Degussa Ag, 6000 Frankfurt | "elektrisches kontaktstueck" |
| US4457787A (en) * | 1982-09-21 | 1984-07-03 | Chugai Denki Kogyo Kabushiki-Kaisha | Internal oxidation method of Ag alloys |
| FR2814179A1 (fr) * | 2000-09-15 | 2002-03-22 | Franco Belge Combustibles | Alliage a base d'argent a resistance au fluage amelioree pour la realisation d'elements absorbants les neutrons et procede de fabrication de barreaux en cet alliage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2572662A (en) * | 1945-07-12 | 1951-10-23 | Cutler Hammer Inc | Electrical contact |
| US2796346A (en) * | 1955-04-28 | 1957-06-18 | Baker & Co Inc | Electrical contact material |
| US3607244A (en) * | 1967-03-11 | 1971-09-21 | Sumitomo Electric Industries | Electric contact material and method of making the same |
| US3694197A (en) * | 1970-11-12 | 1972-09-26 | Mallory & Co Inc P R | Electrical contact materials of silver-cadmium oxide containing additives |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1050551B (de) * | 1959-02-12 | Siemens Schuckertw erke Aktien gesellschaft Berlin und Erlangen | PuK ermetallischcs Verfahren zur Her stellung eines Kontaktwerkstoffs auf Silber Cadmiumox>d Basis | |
| DE1106967B (de) * | 1953-11-21 | 1961-05-18 | Siemens Ag | Verwendung indiumhaltiger Legierungen als Werkstoff zur Herstellung von Kontakten |
| DE1033815B (de) * | 1957-02-12 | 1958-07-10 | Siemens Ag | Gut loetbarer Kontaktkoerper aus Verbundstoff mit eingelagerten Metalloxyden |
| DE1173764B (de) * | 1957-05-23 | 1964-07-09 | Siemens Ag | Verfahren zur Herstellung abriebfester Oberflaechenschichten grosser Haerte und Leitfaehigkeit, insbesondere fuer elektrische Gleit- und Reibkontakte |
| DE1153178B (de) * | 1959-08-01 | 1963-08-22 | Duerrwaechter E Dr Doduco | Verwendung eines verformbaren Silber-Metalloxyd-Werkstoffes fuer elektrische Kontakte |
| FR2007490A1 (en) * | 1968-04-22 | 1970-01-09 | Mallory & Co Inc P R | Electrical contact of cdo/ag with integrally bonded layer - of ag or other metal |
-
1974
- 1974-02-14 US US442632*A patent/US3874941A/en not_active Expired - Lifetime
- 1974-03-09 DE DE2411322A patent/DE2411322C2/de not_active Expired
- 1974-03-14 GB GB1134874A patent/GB1438044A/en not_active Expired
- 1974-03-19 CA CA195,409A patent/CA1005664A/en not_active Expired
- 1974-03-19 FR FR7409180A patent/FR2222448B1/fr not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2572662A (en) * | 1945-07-12 | 1951-10-23 | Cutler Hammer Inc | Electrical contact |
| US2796346A (en) * | 1955-04-28 | 1957-06-18 | Baker & Co Inc | Electrical contact material |
| US3607244A (en) * | 1967-03-11 | 1971-09-21 | Sumitomo Electric Industries | Electric contact material and method of making the same |
| US3694197A (en) * | 1970-11-12 | 1972-09-26 | Mallory & Co Inc P R | Electrical contact materials of silver-cadmium oxide containing additives |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072515A (en) * | 1973-07-05 | 1978-02-07 | Sumitomo Electric Industries, Ltd. | Electrical contact material |
| US4050930A (en) * | 1975-06-24 | 1977-09-27 | Sumitomo Electric Industries, Ltd. | Electrical contact material |
| US4053728A (en) * | 1975-10-24 | 1977-10-11 | General Electric Company | Brazed joint between a beryllium-base part and a part primarily of a metal that is retractable with beryllium to form a brittle intermetallic compound |
| US4170471A (en) * | 1978-07-27 | 1979-10-09 | Rockwell International Corporation | Silver alloys for metallization of magnetic bubble domain devices |
| 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 |
| JPS6177211A (ja) * | 1984-08-24 | 1986-04-19 | 中外電気工業株式会社 | コンタクタ−用複合電気接点材 |
| GB2182674A (en) * | 1984-11-08 | 1987-05-20 | Chugai Electric Ind Co Ltd | Electrical contact material |
| GB2182674B (en) * | 1984-11-08 | 1989-10-04 | Chugai Electric Ind Co Ltd | Electrical contact material |
| US4904317A (en) * | 1988-05-16 | 1990-02-27 | Technitrol, Inc. | Erosion resistant Ag-SnO2 electrical contact material |
| EP0877403A4 (en) * | 1995-10-12 | 1999-08-04 | Omron Tateisi Electronics Co | COUNTER |
| US20050202610A1 (en) * | 2001-06-01 | 2005-09-15 | Sato Sadeo | Method for manufacturing ag-oxide-based electric contact material and product of the same |
| US7189656B2 (en) | 2001-06-01 | 2007-03-13 | Tokuriki Honten Co. Ltd. | Method for manufacturing ag-oxide-based electric contact material and product of the same |
| EP1584696A4 (en) * | 2002-08-15 | 2005-10-12 | Tokuriki Honten Company Ltd | MANUFACTURING METHOD FOR ELECTRIC CONTACT MATERIAL ON AG-OXIDBASIS AND ITS PRODUCT |
| US20040253137A1 (en) * | 2003-06-16 | 2004-12-16 | W.C. Heraeus Gmbh & Co., Kg | Alloy and its use |
| EP1489193A1 (de) * | 2003-06-16 | 2004-12-22 | W. C. Heraeus GmbH & Co. KG | Silber-legierung und deren Verwendung |
| US20070062810A1 (en) * | 2003-06-16 | 2007-03-22 | W.C. Heraeus Gmbh & Co., Kg | Sputtering system using silver-based alloy |
| CN104493174A (zh) * | 2014-12-30 | 2015-04-08 | 桂林电器科学研究院有限公司 | 一种制备银氧化锡氧化物电触头材料的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2222448A1 (enrdf_load_stackoverflow) | 1974-10-18 |
| FR2222448B1 (enrdf_load_stackoverflow) | 1977-10-07 |
| DE2411322C2 (de) | 1984-10-18 |
| CA1005664A (en) | 1977-02-22 |
| DE2411322A1 (de) | 1974-09-26 |
| GB1438044A (en) | 1976-06-03 |
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