GB754317A - Improvements relating to the surface finishing of tantalum and alloys thereof - Google Patents
Improvements relating to the surface finishing of tantalum and alloys thereofInfo
- Publication number
- GB754317A GB754317A GB31955/54A GB3195554A GB754317A GB 754317 A GB754317 A GB 754317A GB 31955/54 A GB31955/54 A GB 31955/54A GB 3195554 A GB3195554 A GB 3195554A GB 754317 A GB754317 A GB 754317A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- alloys
- parts
- tantalum
- surface finishing
- 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
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Abstract
In a method of chemically polishing and brightening Ta and Ta-base alloys the metal is immersed in a mixture consisting of, by volume, 1-2 parts HNO3, 4-5 parts H2SO4 and 1-2 parts HF. Particularly useful is a mixture consisting of, by volume, 15-40 per cent, preferably 25 per cent, HNO3, 40-80 per cent, preferably 60 per cent, H2SO4, 10-35 per cent, preferably 15 per cent, HF and preferably no water although it may be added in an amount up to 20 per cent. The strengths of the acids used are respectively, by weight, 70 per cent, 95,5 per cent and 48 per cent and the solutions are best used in the temperature range of room temperature to 90 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US754317XA | 1953-12-28 | 1953-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB754317A true GB754317A (en) | 1956-08-08 |
Family
ID=22125703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31955/54A Expired GB754317A (en) | 1953-12-28 | 1954-11-04 | Improvements relating to the surface finishing of tantalum and alloys thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB754317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487268B (en) * | 2020-04-27 | 2023-07-21 | 宁波江丰电子材料股份有限公司 | Surface treatment method for tantalum material EBSD sample |
-
1954
- 1954-11-04 GB GB31955/54A patent/GB754317A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487268B (en) * | 2020-04-27 | 2023-07-21 | 宁波江丰电子材料股份有限公司 | Surface treatment method for tantalum material EBSD sample |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB590852A (en) | Improvements in and relating to the treatment of phosphate-coated metal surfaces | |
| GB712874A (en) | Improvements in or relating to processes for providing aluminium or aluminium alloys with a coating of lead | |
| GB662800A (en) | Improvements in or relating to the preparation of salts of cyclohexylsulphamic acid | |
| US2154455A (en) | Cadmium bright dip | |
| GB754317A (en) | Improvements relating to the surface finishing of tantalum and alloys thereof | |
| GB754188A (en) | Improvements relating to the surface finishing of zirconium and alloys thereof | |
| GB754190A (en) | Improvements relating to the surface finishing of titanium and alloys thereof | |
| DE1009884B (en) | Process for the pretreatment of workpieces made of aluminum or aluminum alloys for the production of high-gloss, anodically oxidized surfaces | |
| GB723945A (en) | An electrolytic process for smoothing and polishing surfaces of gold and gold alloys | |
| GB805781A (en) | Surface treatment of metallic uranium | |
| GB436481A (en) | Improvements in or relating to the production of bright aluminium surfaces | |
| US2315696A (en) | Polishing of metal surfaces | |
| GB597754A (en) | Process for treating ferrous sheets and other ferrous articles | |
| US2349843A (en) | Electrolytic treatment of chromium alloys | |
| GB558727A (en) | Improvements in or relating to method of polishing nickel, and an electrolyte suitable for use in said method | |
| GB655514A (en) | Electrolytic process for the surface treatment of aluminium or aluminium alloys | |
| GB709391A (en) | Improvements in or relating to the surface treatment of aluminium of aluminium alloys | |
| GB464656A (en) | Improvements in and relating to the process of blackening iron and steel, and protecting the same from rust | |
| GB761647A (en) | Improvements relating to metallic foil | |
| GB638321A (en) | A process for the electrolytic polishing and oxidation of aluminium articles | |
| GB618202A (en) | Improvements in and relating to the anodising of aluminium or aluminium base alloys | |
| GB673901A (en) | Improvements in or relating to brazing and like operations | |
| GB556797A (en) | Process for electropolishing metal, especially articles of stainless steel | |
| SU146452A1 (en) | Chemical Polishing Solution for Glassware | |
| GB636736A (en) | Improvements in and relating to the preparation of sintered metal articles for electroplating operation |