GB824091A - Improvements in or relating to composite metal powder - Google Patents
Improvements in or relating to composite metal powderInfo
- Publication number
- GB824091A GB824091A GB4827/57A GB482757A GB824091A GB 824091 A GB824091 A GB 824091A GB 4827/57 A GB4827/57 A GB 4827/57A GB 482757 A GB482757 A GB 482757A GB 824091 A GB824091 A GB 824091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- metals
- compound
- gas
- group
- 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
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
- B22F9/26—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions using gaseous reductors
Abstract
Particles of one or more metals of the group Cu, Ag, Au, Be, Zn, Cd, B, Al, In, Ti, Ge, Zr, Sn, Hf, Pb, V, Nb, Sb, Ta, Bi, Cr, Mo, W, Mn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt, U and Th are coated with a different metal selected from the group Os, Rh, Ru, Ir, Au, Pt, Pd, Ag, Cu, As, Sn, Ni and Co by being dispersed in ammoniated solution containing a compound of the coating metal and reacting the solution with a reducing gas at a temperature above 200 DEG F. and under a positive partial pressure of reducing gas above 4 atmospheres and under a total pressure sufficient to prevent boiling. Coatings containing two or more metals may be produced by successive reduction of a solution containing compounds of the metals. The solution may be organic or inorganic and acid, basic or neutral, and the compound of the coating metal may be the sulphate, chloride, carbonate, hydroxide, fluosilicate or acetate. If necessary, a hydrogenation catalyst such as ferrous sulphate or sodium sulphide and potassium cyanide, is added to the solution. Reducing gases mentioned are hydrogen, carbon monoxide, methane, producer gas and natural gas. The resulting coated powder may be compacted and/or sintered. Specification 824,092 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA824091X | 1956-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB824091A true GB824091A (en) | 1959-11-25 |
Family
ID=4172598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4827/57A Expired GB824091A (en) | 1956-04-10 | 1957-02-12 | Improvements in or relating to composite metal powder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB824091A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3218135A (en) * | 1962-01-31 | 1965-11-16 | Du Pont | Powder metal compositions containing dispersed refractory oxide |
| US3520680A (en) * | 1968-07-22 | 1970-07-14 | Pfizer & Co C | Process of producing steel |
| DE1783191B1 (en) * | 1966-09-22 | 1976-11-25 | Eutectic Corp | WELDING POWDER |
| DE3115725A1 (en) * | 1980-04-24 | 1982-05-06 | Commonwealth Scientific and Industrial Research Organization, 2033 Kensington, N.S.W. | DEVICE AND METHOD FOR COATING PARTICLES |
| DE3322637A1 (en) * | 1982-06-28 | 1984-01-05 | S.A.E.S. Getters S.p.A., Milano | PELLETS FOR HYDROGEN ISOTOPENSORPTION AND THEIR USE |
| GB2126204A (en) * | 1982-07-09 | 1984-03-21 | Kernforschungsz Karlsruhe | Apparatus for separating gaseous hydrogen isotopes |
| GB2157711A (en) * | 1984-04-04 | 1985-10-30 | Krebsoege Gmbh Sintermetall | Improvements relating to tough material for tools and/or wearing parts |
| US4652465A (en) * | 1984-05-14 | 1987-03-24 | Nissan Chemical Industries Ltd. | Process for the production of a silver coated copper powder and conductive coating composition |
-
1957
- 1957-02-12 GB GB4827/57A patent/GB824091A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3218135A (en) * | 1962-01-31 | 1965-11-16 | Du Pont | Powder metal compositions containing dispersed refractory oxide |
| DE1783191B1 (en) * | 1966-09-22 | 1976-11-25 | Eutectic Corp | WELDING POWDER |
| US3520680A (en) * | 1968-07-22 | 1970-07-14 | Pfizer & Co C | Process of producing steel |
| DE3115725A1 (en) * | 1980-04-24 | 1982-05-06 | Commonwealth Scientific and Industrial Research Organization, 2033 Kensington, N.S.W. | DEVICE AND METHOD FOR COATING PARTICLES |
| DE3322637A1 (en) * | 1982-06-28 | 1984-01-05 | S.A.E.S. Getters S.p.A., Milano | PELLETS FOR HYDROGEN ISOTOPENSORPTION AND THEIR USE |
| GB2123805A (en) * | 1982-06-28 | 1984-02-08 | Getters Spa | Separating hydrogen isotopes |
| GB2126204A (en) * | 1982-07-09 | 1984-03-21 | Kernforschungsz Karlsruhe | Apparatus for separating gaseous hydrogen isotopes |
| GB2157711A (en) * | 1984-04-04 | 1985-10-30 | Krebsoege Gmbh Sintermetall | Improvements relating to tough material for tools and/or wearing parts |
| US4652465A (en) * | 1984-05-14 | 1987-03-24 | Nissan Chemical Industries Ltd. | Process for the production of a silver coated copper powder and conductive coating composition |
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