ES299269A1 - IMPROVEMENTS IN THE PROCEDURES FOR PREPARING Pseudo-alloys - Google Patents
IMPROVEMENTS IN THE PROCEDURES FOR PREPARING Pseudo-alloysInfo
- Publication number
- ES299269A1 ES299269A1 ES0299269A ES299269A ES299269A1 ES 299269 A1 ES299269 A1 ES 299269A1 ES 0299269 A ES0299269 A ES 0299269A ES 299269 A ES299269 A ES 299269A ES 299269 A1 ES299269 A1 ES 299269A1
- Authority
- ES
- Spain
- 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
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
- 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
- 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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (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.
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 |
|---|---|
| ES299269A1 true ES299269A1 (en) | 1964-06-16 |
Family
ID=8802611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0299269A Expired ES299269A1 (en) | 1963-04-29 | 1964-04-28 | IMPROVEMENTS IN THE PROCEDURES FOR PREPARING Pseudo-alloys |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1608760A1 (en) |
| ES (1) | ES299269A1 (en) |
| FR (1) | FR1363294A (en) |
| GB (1) | GB1012584A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3472654A (en) * | 1967-01-03 | 1969-10-14 | Texas Instruments Inc | Silver base alloy for making electrical contacts |
| EP0323067B1 (en) * | 1987-12-12 | 1993-10-27 | Fujitsu Limited | Sintered magnesium-based composite material and process for preparing same |
-
1963
- 1963-04-29 FR FR932986A patent/FR1363294A/en not_active Expired
-
1964
- 1964-04-27 DE DE19641608760 patent/DE1608760A1/en active Pending
- 1964-04-28 ES ES0299269A patent/ES299269A1/en not_active Expired
- 1964-04-29 GB GB17775/64A patent/GB1012584A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1363294A (en) | 1964-06-12 |
| DE1608760A1 (en) | 1970-12-10 |
| GB1012584A (en) | 1965-12-08 |
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