GB402916A - An improved process for coating articles with molybdenum - Google Patents
An improved process for coating articles with molybdenumInfo
- Publication number
- GB402916A GB402916A GB27956/32A GB2795632A GB402916A GB 402916 A GB402916 A GB 402916A GB 27956/32 A GB27956/32 A GB 27956/32A GB 2795632 A GB2795632 A GB 2795632A GB 402916 A GB402916 A GB 402916A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molybdenum
- colloidal
- heating
- alloys
- specifications
- 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
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Molybdenum trioxide is prepared in the colloidal condition by heating crystalline ammonium molybdate in a vacuum to about 300 DEG C. Specifications 22746/07, [Class 82, Metals and alloys], and 385,496, [Group II], are referred to.ALSO:Continuous coatings of molybdenum are applied to articles of other materials e.g. iron or nickel, by applying to the article a thin coating of a molybdenum compound in a colloidal state and heating in a reducing atmosphere at over 900 DEG C. Colloidal molybdic acid formed by heating crystalline ammonium molybdate in vacuo, is a suitable compound. The coated articles are suitable for medical apparatus, and internal parts, such as support wires, of gas filled electric incandescent or glow discharge lamps. In the lamps the molybdenum prevents the release of gaseous impurities from the cores, and absorbs gaseous impurities in the filling. Specifications 22746/07, [Class 82, Metals and alloys], and 385,496 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE402916X | 1932-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB402916A true GB402916A (en) | 1933-12-14 |
Family
ID=6414226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27956/32A Expired GB402916A (en) | 1932-02-01 | 1932-10-07 | An improved process for coating articles with molybdenum |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB402916A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229181A (en) * | 2022-09-23 | 2022-10-25 | 西安稀有金属材料研究院有限公司 | Method for preparing superfine molybdenum dioxide and molybdenum powder based on nano-scale solid-liquid mixed deposition |
-
1932
- 1932-10-07 GB GB27956/32A patent/GB402916A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229181A (en) * | 2022-09-23 | 2022-10-25 | 西安稀有金属材料研究院有限公司 | Method for preparing superfine molybdenum dioxide and molybdenum powder based on nano-scale solid-liquid mixed deposition |
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