US2886469A - Method of coating metallic bodies with aluminum utilizing vaporous sub-chlorides - Google Patents
Method of coating metallic bodies with aluminum utilizing vaporous sub-chlorides Download PDFInfo
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- US2886469A US2886469A US510320A US51032055A US2886469A US 2886469 A US2886469 A US 2886469A US 510320 A US510320 A US 510320A US 51032055 A US51032055 A US 51032055A US 2886469 A US2886469 A US 2886469A
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- Prior art keywords
- aluminum
- chlorides
- vaporous
- metallic
- subchlorides
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- 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.)
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- 229910052782 aluminium Inorganic materials 0.000 title claims description 36
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 36
- 238000000576 coating method Methods 0.000 title claims description 20
- 239000011248 coating agent Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 7
- 150000001805 chlorine compounds Chemical class 0.000 claims description 7
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000005049 silicon tetrachloride Substances 0.000 claims description 5
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 15
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical class Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 13
- 239000010953 base metal Substances 0.000 description 10
- 239000012159 carrier gas Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910001510 metal chloride Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229940063656 aluminum chloride Drugs 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 101000577696 Homo sapiens Proline-rich transmembrane protein 2 Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 102100028840 Proline-rich transmembrane protein 2 Human genes 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases
- C23C10/08—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases only one element being diffused
Definitions
- coatings of aluminum or aluminum alloys by treating a base metal with vapors o f aluminum chlorides may be produced at elevated temperatures in an atmosphere free of oxygen and water vapors.
- the volatile aluminum chlorides are produced either by va- ⁇ porizing sublimated A1Cl3 or vby chlorination of aluminum or aluminum-containing combinations in contact with chloride or hydrogenchloride or chloride-yielding chlorides such as ammonium chloride. f.
- the invention proposes a method of producing upon metallic bodies aluminum coatings or aluminum alloy coatings.
- the alloy coatings thus produced may be formed as surface layers just as the aluminum coatings.
- the base metal for example, powdered base metal
- the formation of the aluminum alloys or vapor layers of aluminum is effected by treating the surface of the solid base metal with vaporous preferably low-grade aluminum subchlorides obtained directly prior to the vapor reaction from other vaporous metallic chlorides (foreign metallic chlorides) by reaction with aluminum or aluminum alloys, respectively.
- substantially all metallic chlorides' are adapted which assume vapor state at the formation temperature and whichV exhibit at such temperature a more negative value of the formation energy than that of the aluminum chloride.
- substantially only the alkali-chlorides vand the earth alkalichlorides are unsuitable. It has, however, been found in practical work that accurate dosing of the aluminum subchloride in the carrier gas is'of basic importance for obtaining uniform vapor reaction lover the entire metallic surface to be treated. Such dosing may be achieved simply upon using foreign metal chlorides which are fluid or liquid at room temperature. Relatively inexpensive silicon tetrachloride which is liquid at room temperature has been found particularly suitable. Titanium tetrachloride may also be used with advantage provided that attention is paid to an atmosphere free of oxygen and water and also free of nitrogen.
- the method of the invention is excellently adapted for providing iron and alloyed steels with coatings or layers of aluminum alloys; for the forming of such coatings upon nickel and chromium-nickel alloys; for aluminizing molybdenum and its alloys; for producing chromiumaluminum alloys, etc.
- Aluminum, iron-aluminum or nickel-aluminum and other alloys are adapted for yielding the aluminum in the reaction with the foreign metal chlorides.
- Example 1 A gaseous stream, freed of oxygen and water, of 2 parts nitrogen and 1 part hydrogen, by volume, is saturated with silicon tetrachloride at 20 C.
- the resulting gas mixture containing about 20 vol.-percent SiCl., is forced through an aluminum bath held at 900 C. and is then conducted over liquid aluminum (900-1000 C.) to the vaporization furnace, the latter containing a body of nickel which is to be aluminized, such body being held at a temperature from 550-650 C.
- a treatment of about 40 min. will produce a uniform aluminum silicon alloy coating about 0.02 to 0.05 mm. thick. See Fig. 1.
- Example 2 Iron pipes may be treated to provide aluminum alloy coatings or layers on the inside as diagrammatically indicated in Fig. 2.
- a perforated ceramic carrier tube is introduced into the iron pipe, with a few millimeters subchloride formed according to the invention penetrates the perforated carrier tube, ows to the inside pipe wall and is exhausted at one end of the pipe.
- An aluminumtitanium alloy coating with a thickness on the order of about O-.l to 0.2 mm. may be producedl by a treatment lasting/fromy about 20 to about 30 min.
- Such interiorly coated pipes are proof against burningv out in oxygen and water Vapor up to about l000 C. without cracking of the coating.
- the interior treatment described above may be-advantageously combined with known dilusion annealing on the outside of the pipe.
- the outer annealing may be carried out without protective ⁇ gas while the interior protective gas treatment according to the invention may be simply accomplished by sealing.
- Example 3 Molybdenum powder is converted to molybdenumaluminate powder, iny a flowing bed, by treatment' with a gas stream containing aluminum-chloride-hydrogen at 1200I C.
- the production of the aluminum chloride is according to the invention accomplished by reaction of a mixture of SiCl4-H2 at l2501300 C. with an aluminum melt.
- the conversion of the molybdenum powder into molybdenumaluminate is accomplishedv in a few minutes. This example has not been illustrated because it is believed self-explanatory in view ofthe preceding description.
- a method of coating metallic bodies with aluminum alloys comprising the following steps, namely, reacting with aluminum, at temperatures within the range from above 500 C; toabove 900 C., metallic chloride selected from the class of chlorides consisting of silicon tetrachloride and titanium tetrachloride contained in a hydrogen carrier gas, to produce low grade vaporous aluminum subchloride ⁇ and silicon subchlorides or titanium subchlorides, respectively,r and conducting said low grade subchlorides directly upon formation thereof, with said carrier gas, to a metallic body to be coated, for interaction with said body at a temperature which is below the temperature at which said subchlorides are formed, to cause deposit on said metallic body of an aluminum alloy coating.
- a method of coating metallic bodies with aluminum comprisingV the vfollowing steps, namely, reacting with aluminum, at temperatures within the range from above 500 ⁇ C. tolfaboveY 900' C., metallic chloride which is liquid at room temperature and selected from the class of chlorides consisting of silicon tetrachloride and titanium tetrachloride contained. in a hydrogen carrier gas, to produce low grade vaporous aluminum subchloride, and conducting said lowy grade aluminum ⁇ subchloride directly upon formation thereof, with said carrier gas, to a metallic body to be coated, for interaction with said body at a temperature which is below the temperature at' which said aluminum subchloride is formed, to cause deposit on said metallic body of an aluminum alloy coatlng.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
Description
May 12, 1959 2,886,469 INUM j 1 FITZER METHOD OF COATING METALLIC BODIES WITH ALUM UTILIZING VAPOROUS SUB-CHLORIDES Filed May 23, 1955 METHOD F `COATINGv METALLIC BODIES WITH ALUMINUM UTILIZING VAPOROUS SUB-CHLO- Erich Fitzer, Vienna, Austria, assignor to Siemens-Planiawerke Aktiengesellschaft fr Kohlefabrikate, Meitingen, near Augsburg, Germany, a corporation of Germany Application May 23, 1955, Serial No. 510,320 'Claims priority, application Austria May 31, 1954 z claims. .'(cl. 111-107) This invention relates to a method of coating metallic bodies with aluminum.
It is known that coatings of aluminum or aluminum alloys by treating a base metal with vapors o f aluminum chlorides may be produced at elevated temperatures in an atmosphere free of oxygen and water vapors. The volatile aluminum chlorides are produced either by va-` porizing sublimated A1Cl3 or vby chlorination of aluminum or aluminum-containing combinations in contact with chloride or hydrogenchloride or chloride-yielding chlorides such as ammonium chloride. f.
It has however been discovered that in such treatment, the base metal is strongly and detrimentally attacked by the chloride. Also, the appearance of a'low-grade aluminum-chloride (aluminum-subchloride) has underl predetermined conditions -been observed.- f The subchloride is formed by a reaction of AlCl3 vapor with molten aluminum. For technical processes, the use of the solid, moisture-sensitive aluminum chloride is however connected with great diiculties, for example, in the dosing or in its continuous vaporization in a stream of a carrier gas. Great diiculties also appear in the technical handling of the known analogously produced aluminum subchloride.
The invention proposes a method of producing upon metallic bodies aluminum coatings or aluminum alloy coatings. The alloy coatings thus produced may be formed as surface layers just as the aluminum coatings. With suthciently long treatment of the base metal, for example, powdered base metal, it will be possible to obtain the penetrating reaction thereof into-the desired aluminum alloy. In the method according to the invention, the formation of the aluminum alloys or vapor layers of aluminum is effected by treating the surface of the solid base metal with vaporous preferably low-grade aluminum subchlorides obtained directly prior to the vapor reaction from other vaporous metallic chlorides (foreign metallic chlorides) by reaction with aluminum or aluminum alloys, respectively.
Based upon thermodynamic data of aluminum chlorides, a reaction with nobler base metals could not be expected at all or only with very low yield. It was, however, found that the aluminum subchlorides formed according to the invention, exhibit extremely active reaction, being easily reacted with the corresponding base metals without attacking them by increased formation of chloride. This surprising effect is believed to be due to catalytic decomposition of the lsubchlorides through the l metal surface without causing appearance of free chloride.
It has been found that aluminum subchlorides especially adapted for quick reaction with the base metal, are produced when the formation thereof by reaction ofthe foreign metal chlorides with aluminum or aluminum alloys takes place at temperatures within a range from above 500 C. to above 900 C., exceeding the reaction temperature with the base metal (vaporization tempera- ICCA ture), and lwhen the formed vaporous aluminum subchlorides do not go through an intermediatecooling, Ibetween their formation and the reaction with the base metal.
By the forming of the aluminum subchlorides according to the invention, substantially all metallic chlorides' are adapted which assume vapor state at the formation temperature and whichV exhibit at such temperature a more negative value of the formation energy than that of the aluminum chloride. vAccordingly, substantially only the alkali-chlorides vand the earth alkalichlorides are unsuitable. It has, however, been found in practical work that accurate dosing of the aluminum subchloride in the carrier gas is'of basic importance for obtaining uniform vapor reaction lover the entire metallic surface to be treated. Such dosing may be achieved simply upon using foreign metal chlorides which are fluid or liquid at room temperature. Relatively inexpensive silicon tetrachloride which is liquid at room temperature has been found particularly suitable. Titanium tetrachloride may also be used with advantage provided that attention is paid to an atmosphere free of oxygen and water and also free of nitrogen.
Practical work will be in most cases carried on with an inert ora reducing carrier gas stream which is loaded with the vaporous foreign metal chlorides, for example, by saturation at predetermined temperature or by feeding liquid,v foreign' metal chloride in drops to the carrier gas, and conducting such carrier gas stream for the reaction over or through the liuid aluminum and conducting the aluminum ysubchlorides formed in such carrier gas stream to the metal surface to be coated..
The method of the invention is excellently adapted for providing iron and alloyed steels with coatings or layers of aluminum alloys; for the forming of such coatings upon nickel and chromium-nickel alloys; for aluminizing molybdenum and its alloys; for producing chromiumaluminum alloys, etc. Aluminum, iron-aluminum or nickel-aluminum and other alloys are adapted for yielding the aluminum in the reaction with the foreign metal chlorides.
The invention will now be described `by explaining a few examples: Y
Example 1 A gaseous stream, freed of oxygen and water, of 2 parts nitrogen and 1 part hydrogen, by volume, is saturated with silicon tetrachloride at 20 C. The resulting gas mixture containing about 20 vol.-percent SiCl., is forced through an aluminum bath held at 900 C. and is then conducted over liquid aluminum (900-1000 C.) to the vaporization furnace, the latter containing a body of nickel which is to be aluminized, such body being held at a temperature from 550-650 C. A treatment of about 40 min. will produce a uniform aluminum silicon alloy coating about 0.02 to 0.05 mm. thick. See Fig. 1.
Example 2 Iron pipes may be treated to provide aluminum alloy coatings or layers on the inside as diagrammatically indicated in Fig. 2. A perforated ceramic carrier tube is introduced into the iron pipe, with a few millimeters subchloride formed according to the invention penetrates the perforated carrier tube, ows to the inside pipe wall and is exhausted at one end of the pipe. An aluminumtitanium alloy coating with a thickness on the order of about O-.l to 0.2 mm. may be producedl by a treatment lasting/fromy about 20 to about 30 min. Such interiorly coated pipes are proof against burningv out in oxygen and water Vapor up to about l000 C. without cracking of the coating. The interior treatment described above may be-advantageously combined with known dilusion annealing on the outside of the pipe. For example, by using sprayed aluminum coatings with silicate cover layers, the outer annealing may be carried out without protective `gas while the interior protective gas treatment according to the invention may be simply accomplished by sealing.
the pipe at its ends.
Example 3 Molybdenum powder is converted to molybdenumaluminate powder, iny a flowing bed, by treatment' with a gas stream containing aluminum-chloride-hydrogen at 1200I C. The production of the aluminum chloride is according to the invention accomplished by reaction of a mixture of SiCl4-H2 at l2501300 C. with an aluminum melt. The conversion of the molybdenum powder into molybdenumaluminate is accomplishedv in a few minutes. This example has not been illustrated because it is believed self-explanatory in view ofthe preceding description.
Changes may be made within the scopel and spirit of the appended claims.
I claim:
1. A method of coating metallic bodies with aluminum alloys, comprising the following steps, namely, reacting with aluminum, at temperatures within the range from above 500 C; toabove 900 C., metallic chloride selected from the class of chlorides consisting of silicon tetrachloride and titanium tetrachloride contained in a hydrogen carrier gas, to produce low grade vaporous aluminum subchloride `and silicon subchlorides or titanium subchlorides, respectively,r and conducting said low grade subchlorides directly upon formation thereof, with said carrier gas, to a metallic body to be coated, for interaction with said body at a temperature which is below the temperature at which said subchlorides are formed, to cause deposit on said metallic body of an aluminum alloy coating.
2. A method of coating metallic bodies with aluminum, comprisingV the vfollowing steps, namely, reacting with aluminum, at temperatures within the range from above 500` C. tolfaboveY 900' C., metallic chloride which is liquid at room temperature and selected from the class of chlorides consisting of silicon tetrachloride and titanium tetrachloride contained. in a hydrogen carrier gas, to produce low grade vaporous aluminum subchloride, and conducting said lowy grade aluminum `subchloride directly upon formation thereof, with said carrier gas, to a metallic body to be coated, for interaction with said body at a temperature which is below the temperature at' which said aluminum subchloride is formed, to cause deposit on said metallic body of an aluminum alloy coatlng.
References Cited in the le of this patent UNITED STATES PATENTS 1,770,177' Martin Jury s, 1930 2,516,058 Lander July 18, 1950 2,643,959 Fischer June30, 1953
Claims (1)
1. A METHOD OF COATING METALLIC BODIES WITH ALUMINUM ALLOYS, COMPRISING THE FOLLOWING STEPS, NAMELY, REACTING WITH ALUMINUM, AT TEMPERATURES WITHIN THE RANGE FROM ABOVE 500* C. TO ABOVE 900* C., METALLIC CHLORIDE SELECTED FROM THE CLASS OF CHLORIDES CONSISTING OF SILICON TETRACHLORIDE AND TITANIUM TETRACHLORIDE CONTAINED IN A HYDROGEN CARRIER GAS, TO PRODUCE LOW GRADE VAPOROUS ALUMINUM SUBCHLORIDE AND SILICON SUBCHLORIDES OR TITANIUM SUBSHLORIDES DIRECTLY UPON FORMATION THEREOF, WITH GRAADE SUBSCHLORIDES, RESPECTIVELY, AND CONDUCTING SAID LOW SAID CARRIER GAS, TO A METALLIC BODY TO BE COATED, FOR INTERACTION WITH SAID BODY AT A TEMPERATURE WHICH IS BELOW THE TEMPERATURE AT WHICH SAID SUBCHLORIDES ARE FORMED, TO CAUSE DEPOSIT ON SAID METALLIC BODY OF AN ALUMINUM ALLOY COATING.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2886469X | 1954-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2886469A true US2886469A (en) | 1959-05-12 |
Family
ID=3838723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US510320A Expired - Lifetime US2886469A (en) | 1954-05-31 | 1955-05-23 | Method of coating metallic bodies with aluminum utilizing vaporous sub-chlorides |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2886469A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3082124A (en) * | 1959-08-03 | 1963-03-19 | Beckman Instruments Inc | Method of making thin layer semiconductor devices |
| US3535103A (en) * | 1968-04-10 | 1970-10-20 | Atomic Energy Commission | Method of making metal alloy powders |
| EP0222241A1 (en) * | 1985-10-31 | 1987-05-20 | Air Products And Chemicals, Inc. | Deposition of titanium aluminides |
| US5928725A (en) * | 1997-07-18 | 1999-07-27 | Chromalloy Gas Turbine Corporation | Method and apparatus for gas phase coating complex internal surfaces of hollow articles |
| US20040180232A1 (en) * | 2003-03-12 | 2004-09-16 | General Electric Company | Selective region vapor phase aluminided superalloy articles |
| US20050084706A1 (en) * | 2003-10-15 | 2005-04-21 | General Electric Company | Method of selective region vapor phase aluminizing |
| US6896488B2 (en) | 2003-06-05 | 2005-05-24 | General Electric Company | Bond coat process for thermal barrier coating |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1770177A (en) * | 1924-09-08 | 1930-07-08 | Edwin D Martin | Production of coated metallic objects |
| US2516058A (en) * | 1943-09-30 | 1950-07-18 | Bell Telephone Labor Inc | Apparatus for plating of metals |
| US2643959A (en) * | 1950-05-29 | 1953-06-30 | Manufacturers Chemical Corp | Process for the protective treatment of iron |
-
1955
- 1955-05-23 US US510320A patent/US2886469A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1770177A (en) * | 1924-09-08 | 1930-07-08 | Edwin D Martin | Production of coated metallic objects |
| US2516058A (en) * | 1943-09-30 | 1950-07-18 | Bell Telephone Labor Inc | Apparatus for plating of metals |
| US2643959A (en) * | 1950-05-29 | 1953-06-30 | Manufacturers Chemical Corp | Process for the protective treatment of iron |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3082124A (en) * | 1959-08-03 | 1963-03-19 | Beckman Instruments Inc | Method of making thin layer semiconductor devices |
| US3535103A (en) * | 1968-04-10 | 1970-10-20 | Atomic Energy Commission | Method of making metal alloy powders |
| EP0222241A1 (en) * | 1985-10-31 | 1987-05-20 | Air Products And Chemicals, Inc. | Deposition of titanium aluminides |
| US4698244A (en) * | 1985-10-31 | 1987-10-06 | Air Products And Chemicals, Inc. | Deposition of titanium aluminides |
| US5928725A (en) * | 1997-07-18 | 1999-07-27 | Chromalloy Gas Turbine Corporation | Method and apparatus for gas phase coating complex internal surfaces of hollow articles |
| US20040180232A1 (en) * | 2003-03-12 | 2004-09-16 | General Electric Company | Selective region vapor phase aluminided superalloy articles |
| US6896488B2 (en) | 2003-06-05 | 2005-05-24 | General Electric Company | Bond coat process for thermal barrier coating |
| US20050084706A1 (en) * | 2003-10-15 | 2005-04-21 | General Electric Company | Method of selective region vapor phase aluminizing |
| US7163718B2 (en) | 2003-10-15 | 2007-01-16 | General Electric Company | Method of selective region vapor phase aluminizing |
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