GB491948A - Process for the production of hard resistant surfaces on metals - Google Patents
Process for the production of hard resistant surfaces on metalsInfo
- Publication number
- GB491948A GB491948A GB33808/36A GB3380836A GB491948A GB 491948 A GB491948 A GB 491948A GB 33808/36 A GB33808/36 A GB 33808/36A GB 3380836 A GB3380836 A GB 3380836A GB 491948 A GB491948 A GB 491948A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbonyl
- tungsten
- carbide
- metals
- temperature
- 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
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/32—Carbides
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (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)
- Powder Metallurgy (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A hard resistant surface consisting of a carbide such as tungsten or boron carbide is formed on metals, e.g. iron, steel, or light metals, by a method involving the decomposition of the corresponding carbonyl. The object to be coated may be placed in a vacuum or an indifferent atmosphere, the carbonyl introduced, and the object heated to a temperature considerably higher than the decomposition temperature of the carbonyl to cause deposition of the carbide. Alternatively the carbonyl can be introduced in solution in an organic solvent, e.g. benzene, which evaporates when the object is heated. The carbonyl decomposes at a comparatively low temperature, e.g. 300 DEG C. in the case of tungsten, and the tungsten is converted into carbide by the benzene vapour at above 800 DEG C. In another method a layer of tungsten is formed on the object by decomposition of the carbonyl, and this is then heated in a reducing carbon-containing atmosphere, e.g. carbon monoxide or a mixture of carbon monoxide and benzene vapour, to a temperature between 970 and 1300 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH491948X | 1935-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB491948A true GB491948A (en) | 1938-09-12 |
Family
ID=4516631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33808/36A Expired GB491948A (en) | 1935-12-28 | 1936-12-09 | Process for the production of hard resistant surfaces on metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB491948A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2523461A (en) * | 1946-03-15 | 1950-09-26 | John T Young | Plating with metal carbonyl |
| US2602033A (en) * | 1950-01-18 | 1952-07-01 | Bell Telephone Labor Inc | Carbonyl process |
| US2962388A (en) * | 1954-03-12 | 1960-11-29 | Metallgesellschaft Ag | Process for the production of titanium carbide coatings |
| US3368914A (en) * | 1964-08-05 | 1968-02-13 | Texas Instruments Inc | Process for adherently depositing a metal carbide on a metal substrate |
-
1936
- 1936-12-09 GB GB33808/36A patent/GB491948A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2523461A (en) * | 1946-03-15 | 1950-09-26 | John T Young | Plating with metal carbonyl |
| US2602033A (en) * | 1950-01-18 | 1952-07-01 | Bell Telephone Labor Inc | Carbonyl process |
| US2962388A (en) * | 1954-03-12 | 1960-11-29 | Metallgesellschaft Ag | Process for the production of titanium carbide coatings |
| US3368914A (en) * | 1964-08-05 | 1968-02-13 | Texas Instruments Inc | Process for adherently depositing a metal carbide on a metal substrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB596214A (en) | Improvements in production of oxygen-free copper | |
| GB491948A (en) | Process for the production of hard resistant surfaces on metals | |
| GB930089A (en) | Piston ring | |
| GB912970A (en) | Improvements relating to the production of phosphate coatings | |
| GB722915A (en) | Process for producing a hard and wear-resistant surface on ferrous bodies | |
| GB723236A (en) | Process for producing a hard and wear-resistant surface on ferrous bodies | |
| GB860563A (en) | Improved method of surface treatment for non-ferrous bodies | |
| GB180175A (en) | Improvements in, or connected with, the manufacture of carbon bisulphide | |
| GB742131A (en) | Process for the production of coatings of high melting carbides | |
| GB447064A (en) | Process for the protection of metals against electrolytic corrosion, and means for carrying out such process | |
| GB623577A (en) | Process of recovery of hard metal carbides from sintered hard metal scrap | |
| GB272610A (en) | Improvements in and relating to the treatment of metal surfaces | |
| GB709937A (en) | Preparation of articles having at least a coherent and homogeneous surface layer of magnetite | |
| GB465623A (en) | Improvements in or relating to processes for the manufacture of magnesium or alloys thereof | |
| GB495311A (en) | Improvements in or relating to the manufacture of articles with protective or resistant surfaces or surface parts | |
| GB477100A (en) | Improvements in or relating to processes for the manufacture of calcium carbide | |
| GB462448A (en) | A method for vulcanising rubber on to articles of light metal | |
| GB598660A (en) | Improvements in and relating to the production of iron powder | |
| GB633117A (en) | Improvements in processes and apparatus for the treatment of hafnium, zirconium, titanium, thorium and their alloys in the molten state | |
| GB482150A (en) | Improvements in or relating to processes for the manufacture of aluminium | |
| GB193917A (en) | Improved method of cementation of boron into the surface of iron or steel | |
| GB963763A (en) | Method of making tin plate resistant to oxidation | |
| GB362835A (en) | Process for the production of metallic magnesium by electrothermic reduction of magnesium compounds | |
| GB729604A (en) | Improvements in the production of protectively coated metals | |
| GB193918A (en) | Improvements in the method of cementation of boron into the surface of iron or steel |