EP0236309A1 - Couche protectrice en ceramique - Google Patents
Couche protectrice en ceramiqueInfo
- Publication number
- EP0236309A1 EP0236309A1 EP85904794A EP85904794A EP0236309A1 EP 0236309 A1 EP0236309 A1 EP 0236309A1 EP 85904794 A EP85904794 A EP 85904794A EP 85904794 A EP85904794 A EP 85904794A EP 0236309 A1 EP0236309 A1 EP 0236309A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxide
- protective layer
- base material
- aluminum oxide
- ceramic protective
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims description 19
- 239000011253 protective coating Substances 0.000 title 1
- 239000011241 protective layer Substances 0.000 claims abstract description 37
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 25
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 13
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 13
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 11
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 claims abstract description 8
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001195 gallium oxide Inorganic materials 0.000 claims abstract description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 8
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 8
- 229910001935 vanadium oxide Inorganic materials 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 230000000737 periodic effect Effects 0.000 claims abstract description 4
- 239000000654 additive Substances 0.000 claims description 10
- 230000000996 additive effect Effects 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims 2
- 229910052804 chromium Inorganic materials 0.000 claims 2
- 239000011651 chromium Substances 0.000 claims 2
- 229910052733 gallium Inorganic materials 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 2
- 229910052720 vanadium Inorganic materials 0.000 claims 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 2
- 229910052593 corundum Inorganic materials 0.000 abstract description 10
- 239000010431 corundum Substances 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 8
- 239000010410 layer Substances 0.000 abstract description 6
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 abstract description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 3
- 235000011152 sodium sulphate Nutrition 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
-
- 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
- C23C4/11—Oxides
Definitions
- the invention relates to a ceramic protective layer based on aluminum oxide according to the preamble of claim 1.
- Oxidation-resistant components for hot gas turbines and jet engines which have a ceramic protective layer, which by means of flame or By applying these protective layers, the metallic components are protected against corrosive influences at high temperatures.
- the protection consists in reducing undesired chemical attacks on the component and / or in lowering the temperature in the surface area of the component in relation to the temperature on the surface of the protective layer.
- Replacement sheet ⁇ more or less slowly. In doing so, they go through all possible phase transformations of the ceramic material. Under certain circumstances, additional conversions even occur if the ceramic particles of the protective layer are not in the thermodynamically stable state immediately after they have solidified.
- the aluminum oxide first forms the * * ? -Aluminium oxide, which is similar to the ⁇ * -Aluminiumoxid, because this like the ⁇ ⁇ -Aluminiumoxid has a lower surface energy than the only thermodynamically stable alumina modification, the o -Aluminiumoxid, also called Korund.
- the invention is therefore based on the object of a ceramic protective layer based on aluminum oxide to create, which has a very high temperature change resistance and at the same time is very corrosion-resistant.
- a gas turbine component to be coated (not shown here) is made of an austenitic material, in particular a nickel superalloy. Before the coating, the component is first chemically cleaned and then roughened with a sandblast. This component is coated in air or under reduced pressure using the known plasma spraying process. If required, the component to be coated can first be coated with a NiCrAlY layer before the ceramic protective layer is applied. The protection described below
- Spare sheet Layer has pure aluminum oxide powder as the base material.
- this base material is chromium oxide in an amount of 0.1 to 15 mass? added.
- magnesium oxide in an amount of 0.03 to 4 mass? added to reduce the grain growth of the aluminum oxide.
- gallium oxide, vanadium oxide or iron oxide can of course also be used as an additive. It is of course also possible to dispense with the four metal oxides described above and to add only magnesium oxide to the base material, which at the same time promotes the formation of the round structure in the case of the aluminum oxide and reduces the grain growth thereof.
- the component mentioned above made of a nickel superalloy can also be coated with a ceramic protective layer, the base material of which consists of a mixture of aluminum oxide and titanium oxide.
- the titanium oxide content in such a protective layer is between 10 and 45% by weight.
- Chromium oxide is added to the base material according to the invention.
- the chromium oxide content varies between 0.1 and 15 percent by mass based on the amount of aluminum oxide contained in the base material.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Le matériau de base de la couche ci-décrite est constitué d'oxyde d'aluminium pur ou principalement d'oxyde d'aluminium. Pour améliorer cette couche protectrice, on ajoute à son matériau de base, avant d'appliquer ladite couche, des oxydes des métaux des groupes IIA, IIIA, IIIB, VB, VIB, VIIB ou VIII de la classification périodique. On obtient ainsi dans le cas de l'oxyde d'aluminium la formation d'une structure de corindon, pour laquelle sont particulièrement indiqués l'oxyde de gallium, l'oxyde de vanadium, l'oxyde de chrome ou l'oxyde de fer. La formation de la structure de corindon augmente la résistance de la couche protectrice à l'action corrosive du pentoxyde de vanadium et du sulfate de sodium. L'addition d'une quantité définie d'oxyde de magnésium permet non seulement de stimuler la formation du corindon mais également de réduire la croissance des grains dans le cas de l'oxyde d'aluminium. Les autres oxydes métalliques stimulent surtout la formation de la structure de corindon, de sorte qu'on ajoute à ces oxydes métalliques de préférence de l'oxyde de magnésium pour réduire la croissance des grains.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE1985/000320 WO1987001736A1 (fr) | 1985-09-14 | 1985-09-14 | Couche protectrice en ceramique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0236309A1 true EP0236309A1 (fr) | 1987-09-16 |
Family
ID=6776141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85904794A Pending EP0236309A1 (fr) | 1985-09-14 | 1985-09-14 | Couche protectrice en ceramique |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0236309A1 (fr) |
| WO (1) | WO1987001736A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11697879B2 (en) * | 2019-06-14 | 2023-07-11 | Applied Materials, Inc. | Methods for depositing sacrificial coatings on aerospace components |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2904449A (en) * | 1955-07-26 | 1959-09-15 | Armour Res Found | Method and compositions for flame spraying |
| US3625717A (en) * | 1968-04-29 | 1971-12-07 | Avco Corp | Spray coating compositions |
| US4077637A (en) * | 1977-01-17 | 1978-03-07 | Koppers Company, Inc. | Ceramic coated piston rings |
| JPS57120871A (en) * | 1981-01-20 | 1982-07-28 | Toshihiko Yoshino | Magnetic field measuring device |
| CS233501B1 (en) * | 1982-06-11 | 1985-03-14 | Karel Zverina | Spray material namely for plasma spraying |
| DE3427456A1 (de) * | 1984-07-25 | 1986-01-30 | Brown, Boveri & Cie Ag, 6800 Mannheim | Keramische schutzschicht |
-
1985
- 1985-09-14 EP EP85904794A patent/EP0236309A1/fr active Pending
- 1985-09-14 WO PCT/DE1985/000320 patent/WO1987001736A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8701736A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1987001736A1 (fr) | 1987-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): FR GB NL |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HARBACH, FRIEDRICH Inventor name: NICOLL, ANDREW, R. |