GB1054002A - - Google Patents
Info
- Publication number
- GB1054002A GB1054002A GB1054002DA GB1054002A GB 1054002 A GB1054002 A GB 1054002A GB 1054002D A GB1054002D A GB 1054002DA GB 1054002 A GB1054002 A GB 1054002A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zirconium
- carbides
- hafnium
- tantalum
- heating
- 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.)
- Active
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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
-
- 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
- C23C24/00—Coating starting from inorganic powder
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Carbon And Carbon Compounds (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
1,054,002. A carbide flame spray material. METCO Inc. April 7, 1965 [Aug. 21, 1964], No. 14753/65. Heading C1A. [Also in Division C7] A flame spray material consists of carbides of tantalum, hafnium and zirconium; the tantalum is present in an amount 20-90 atomic per cent, preferably 75-85%, of the total metal content, the hafnium being 0.5 to 95%, preferably 0.5 to 25% of the HF + Zr metal content, the remaining metal content being zirconium. 45-55% of the composition may be carbon. The material may be in powder form of particle size-100 mesh to + 5 Á, preferably - 230 mesh to 10 Á, there being aggregates each containing (i) sub-grains of the carbides of Ta, Zr, HF; or (ii) sub-grains of tantalum carbide and a solid solution of zirconium and hafnium carbides; or (iii) a solid solution carbide of tantalum, hafnium and zirconium. The material may be softened by heating in a plasma flame and sprayed against the surface to be coated. It may be prepared (i) by mixing the metal oxides in the correct proportions with sufficient carbon for the reduction and carburization of the oxides, compacting, and sintering in a reducing atmosphere; (ii) by heating the mixed metal powders with carbon; or (iii) by mixing preformed carbide powders and heating e.g. in vacuo, at e.g. 2900-4000‹ F. to diffuse the carbides; or (iv) by heating the hydrides with carbon.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1054002A true GB1054002A (en) |
Family
ID=1757891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1054002D Active GB1054002A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1054002A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3017907A1 (en) * | 1979-05-10 | 1980-11-20 | Nippon Piston Ring Co Ltd | WEAR-RESISTANT SLIDING ELEMENT FOR INTERNAL COMBUSTION ENGINES |
-
0
- GB GB1054002D patent/GB1054002A/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3017907A1 (en) * | 1979-05-10 | 1980-11-20 | Nippon Piston Ring Co Ltd | WEAR-RESISTANT SLIDING ELEMENT FOR INTERNAL COMBUSTION ENGINES |
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