EP3765426A1 - Keramisches material, schicht und schichtsystem - Google Patents

Keramisches material, schicht und schichtsystem

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Publication number
EP3765426A1
EP3765426A1 EP19707278.8A EP19707278A EP3765426A1 EP 3765426 A1 EP3765426 A1 EP 3765426A1 EP 19707278 A EP19707278 A EP 19707278A EP 3765426 A1 EP3765426 A1 EP 3765426A1
Authority
EP
European Patent Office
Prior art keywords
layer
oxide
ceramic material
ceramic
material according
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.)
Withdrawn
Application number
EP19707278.8A
Other languages
English (en)
French (fr)
Inventor
Arturo Flores Renteria
Werner Stamm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP3765426A1 publication Critical patent/EP3765426A1/de
Withdrawn legal-status Critical Current

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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C04B41/5042—Zirconium oxides or zirconates; Hafnium oxides or hafnates
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics
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    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • C23C28/042—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
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    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • C23C28/044—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
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    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • C23C28/3215—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer at least one MCrAlX layer
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    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
    • 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
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • 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
    • F01D5/284—Selection of ceramic materials
    • 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
    • F01D5/288—Protective coatings for blades
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C04B2235/3246—Stabilised zirconias, e.g. YSZ or cerium stabilised zirconia
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F05D2300/00—Materials; Properties thereof
    • F05D2300/20—Oxide or non-oxide ceramics

Definitions

  • the invention relates to a ceramic material based on zirconium oxide with stabilizers, a layer and a layer system thereof.
  • Turbine blades or components for high-temperature applications are often provided with thermal insulation layers. These are usually ceramic thermal barrier coatings based on zirconium oxide, fully or partially stabilized or based on pyrochlors, such as gadolinium zirconate.
  • the object is achieved by ceramic material according to claim 1, a layer according to claim 11 and a layer system according to claim 14.
  • Figures 1, 2 show schematically a layer system based on the invention.
  • the ceramic material has a tetragonal and cubic crystal structure, which depends on the proportion of the stabilizer yttrium oxide.
  • the tetragonal phase is stabilized by the proportion of yttrium oxide.
  • the ceramic material based on zirconium oxide (ZrO 2 ) ent holds yttrium oxide (Y 2 0 3 ) and at least one other, in particular two, in particular only two further oxides selected from the group erbium oxide (Er 2 0 3 ) and ytterbium oxide ( Yb 2 0 3 ), which preferably act as stabilizers.
  • the proportion of yttrium oxide (Y 2 0 3 ) is preferably 4mol% - 16mol%, whereas in particular the proportion of the wide ren oxides is 2mol% - 40mol%.
  • ytterbium oxide Yb 2 0 3
  • Er 2 0 3 5mol% - 32mol% erbium oxide
  • Yb 2 0 3 ytterbium oxide
  • the proportion of erbium oxide (Er 2 0 3 ) and / or ytterbium oxide (Yb 2 0 3 ) is preferably 2mol% - 20mol% erbium oxide
  • ytterbium oxide Yb 2 O 3
  • 6 mol% -16 mol% yttrium oxide Y 2 O 3
  • a ceramic layer can be produced.
  • all coating methods from the prior art can be used, such as plasma spraying (APS, VPS, LPPS, etc.) or HVOF.
  • a ceramic layer of this ceramic material has in particular a thickness of 20ym, in particular 200ym to 2000ym and is made by atmospheric plasma spraying ago.
  • the layer can be prepared by an EBPVD method and then preferably has a layer thickness of 20ym to lOOOym.
  • the ceramic layer can be applied in the layer system as a single layer (FIG. 1) or as a double layer (FIG. 2).
  • the substrate 4 is preferably metallic and preferably a nickel- or cobalt-based superalloy.
  • the substrate 4 may be ceramic, in particular comprise a CMC material.
  • a bonding layer 7 is present on the substrate 4.
  • this is preferably a NiCoCrAlY layer 7.
  • FIG. 2 shows a further layer system 1 ', in which the monolayer is replaced by a double layer 13 by an inner layer 16, in particular based on yttrium-partially stabilized zirconium oxide, but different from the material of the outer layer, and an outer layer Layer 19 based on the ceramic material according to the invention.
  • the underlying ceramic bonding layer 16 is preferably a partially stabilized yttria-zirconia layer, in particular with 3 mol% - 4mol% yttria (Y2O3).
  • At least the outer ceramic layer 10, 19 may be segmented (DVC).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Ceramic Products (AREA)

Abstract

Durch ein keramisches Material mit den Stabilisatoren Yttriumoxid sowie zumindest eines der Materialien Erbiumoxid oder Ytterbiumoxid wird eine sinterstabile Phase für ein keramisches Material für keramische Schichten und ein keramisches Schichtsystem aufgezeigt, das die mechanischen und thermischen Eigenschaften auch beim Einsatz von hohen Temperaturen lange Zeit aufweist.

Description

Keramisches Material, Schicht und Schichtsystem
Die Erfindung betrifft ein keramisches Material auf der Basis Zirkonoxid mit Stabilisatoren, eine Schicht und ein Schicht system daraus.
Turbinenschaufeln oder generell Komponenten für den Hochtem peratureinsatz werden oft mit thermischen Wärmedämmschichten versehen. Dies sind meistens keramische Wärmedämmschichten auf der Basis Zirkonoxid, voll- oder teilstabilisiert oder auf der Basis von Pyrochloren, wie zum Beispiel Gadolinium- zirkonat .
Anforderungen an die keramische Wärmedämmschicht neben der geringen thermischen Leitfähigkeit sind eine hohe Bruchzähig keit und geringes Sinterverhalten, damit die mechanischen Be lastungen auch über die Zeit aufrechterhalten werden können.
Es ist daher Aufgabe der Erfindung ein keramisches Material aufzuzeigen, was diese Probleme löst.
Die Aufgabe wird gelöst durch keramisches Material nach An spruch 1, eine Schicht nach Anspruch 11 und ein Schichtsystem nach Anspruch 14.
Die Figuren 1, 2 zeigen schematisch ein Schichtsystem auf Basis der Erfindung.
Die Figuren und die Beschreibung stellen Ausführungsbeispiele dar .
Das keramische Material weist eine tetragonale und kubische Kristallstruktur auf, die von dem Anteil des Stabilisators Yttriumoxid abhängt. Die tetragonale Phase wird stabilisiert durch den Anteil von Yttriumoxid. Das keramische Material auf der Basis Zirkonoxid (Zr02) ent hält Yttriumoxid (Y203) sowie zumindest einen weiteren, ins besondere zwei, ganz insbesondere nur zwei weitere Oxide aus gewählt aus der Gruppe Erbiumoxid (Er203) und Ytterbiumoxid (Yb203) , die vorzugsweise als Stabilisatoren wirken.
Der Anteil von Yttriumoxid (Y203) liegt vorzugsweise bei 4mol% - 16mol%, wohingegen insbesondere der Anteil der weite ren Oxide bei 2mol% - 40mol% liegt.
Vorzugsweise werden 2mol% - 40mol% Erbiumoxid (Er203)
und/oder Ytterbiumoxid (Yb203) , insbesondere 5mol% - 32mol% Erbiumoxid (Er203) und Ytterbiumoxid (Yb203) verwendet.
Der Anteil von Erbiumoxid (Er203) und/oder Ytterbiumoxid (Yb203) beträgt vorzugsweise 2mol% - 20mol% Erbiumoxid
(Er203 ) .
Bei der Verwendung von vorzugsweise 4mol% - 10% mol% Erbium oxid (Er203) wird insbesondere 6mol% - 16mol% Yttriumoxid (Y203) verwendet.
Bei der Verwendung von vorzugsweise 4mol% - 10mol% Ytterbium- oxid (Yb203) wird insbesondere 6mol% - 16mol % Yttriumoxid (Y203) verwendet.
Aus diesem keramischen Material kann eine keramische Schicht hergestellt werden. Zur Schichterstellung können alle Be schichtungsverfahren aus dem Stand der Technik verwendet wer den, wie zum Beispiel Plasmaspritzen, (APS, VPS, LPPS, ...) oder HVOF .
Eine keramische Schicht aus diesem keramischen Material weist insbesondere eine Dicke von 20ym, insbesondere 200ym bis 2000ym auf und wird durch atmosphärisches Plasmaspritzen her gestellt. Ebenso kann die Schicht durch ein EBPVD-Verfahren hergestellt werden und weist dann vorzugsweise eine Schicht dicke von 20ym bis lOOOym auf. Die keramische Schicht kann im Schichtsystem als Einfach schicht (Fig. 1) oder als Doppelschicht (Fig. 2) aufgebracht werden .
Die Figur 1 zeigt ein Schichtsystem 1 aus einem Substrat 4. Das Substrat 4 ist vorzugsweise metallisch und vorzugsweise eine nickel- oder kobaltbasierte Superlegierung. Ebenso kann das Substrat 4 keramisch ausgebildet sein, insbesondere ein CMC-Material aufweisen.
Auf dem Substrat 4 ist eine Anbindungsschicht 7 vorhanden. Im Falle eines metallischen Materials ist dies vorzugsweise eine NiCoCrAlY Schicht 7.
Auf der Anbindungsschicht 7 ist dann eine Einfachschicht 10 aus dem erfindungsgemäßen keramischen Material vorhanden.
Figur 2 zeigt ein weiteres Schichtsystem 1', bei dem die Ein fachschicht durch eine Doppelschicht 13 ersetzt wird durch eine innere Schicht 16, insbesondere auf der Basis von Ytt- rium-teilstabilisiertem Zirkonoxid, aber verschieden von dem Material der äußeren Schicht, und einer äußeren Schicht 19 auf der Basis des erfindungsgemäßen keramischen Materials.
Die untenliegende keramische Anbindungsschicht 16 ist vor zugsweise eine teilstabilisierte Yttriumoxid-Zirkonoxid- Schicht, insbesondere mit 3mol% - 4mol% Yttriumoxid (Y2O3) .
In beiden Fällen (Fig. 1, 2) kann zumindest die äußere kera mische Schicht 10, 19 segmentiert sein (DVC) .

Claims

Patentansprüche
1. Keramisches Material
auf der Basis von Zirkonoxid (ZrCt) mit
Yttriumoxid (Y2O3) und
zumindest einem weiteren Oxid ausgewählt aus der Gruppe: Erbiumoxid (Er203) und Ytterbiumoxid (Yb203) .
2. Keramisches Material nach Anspruch 1,
bei dem Yttriumoxid (Y2O3) , Erbiumoxid (Er203) und Ytter biumoxid (Yb203) als Oxide verwendet werden,
insbesondere nur diese.
3. Keramisches Material nach Anspruch 1,
bei dem Yttriumoxid (Y2O3) und Erbiumoxid (Er203) als Oxide verwendet werden,
insbesondere nur diese.
4. Keramisches Material nach Anspruch 1,
bei dem Yttriumoxid (Y2O3) und Ytterbiumoxid (Yb203) als Oxide verwendet werden,
insbesondere nur diese.
5. Keramisches Material nach einem oder mehreren der An sprüche 1 bis 4,
das 4mol% - 16mol% Yttriumoxid (Y2O3) aufweist,
insbesondere 6mol% - 16mol% Yttriumoxid (Y2O3) aufweist.
6. Keramisches Material nach einem oder mehreren der An sprüche 1, 2, 3, 4 oder 5,
das 2mol% - 40mol% Erbiumoxid (E^Ct) und/oder Ytterbium oxid (Yb203) ,
insbesondere 5mol% - 32mol% Erbiumoxid (E^Ct) und/oder Ytterbiumoxid (YbC> ) aufweist.
7. Keramisches Material nach einem oder mehreren der An sprüche 1, 2, 3, 5 oder 6,
aufweisend 2mol% - 20mol% Erbiumoxid (E^Ct) .
Keramisches Material nach einem oder mehreren der An sprüche 1, 2, 4, 5, 6 oder 7,
aufweisend 2mol% - 20mol% Ytterbiumoxid (YbC> ) .
9. Keramisches Material nach einem oder mehreren der
Ansprüche 1, 2, 3, 5, 6 oder 7,
aufweisend 4mol% - 10mol% Erbiumoxid (E^Ct) ,
und insbesondere 6mol% - 16mol% Yttriumoxid (Y2O3) .
10. Keramisches Material nach einem oder mehreren der An sprüche 2, 4, 5, 6 oder 8,
aufweisend 4mol% - 10mol% Ytterbiumoxid (YbC> ) ,
und insbesondere 6mol% - 16mol% Yttriumoxid (Y2O3) .
11. Keramische Schicht,
aufweisend ein keramisches Material nach einem oder mehre ren der Ansprüche 1 bis 10,
insbesondere bestehend aus einem keramischen Material nach einem oder mehreren der Ansprüche 1 bis 10.
12. Keramische Schicht nach Anspruch 11,
hergestellt durch APS und
insbesondere aufweisend eine Schichtdicke von 20ym bis 2000ym.
13. Keramische Schicht nach Anspruch 11,
hergestellt durch EB-PVD und
insbesondere aufweisend eine Schichtdicke von 20ym bis lOOOym.
14. Schichtsystem,
zumindest aufweisend
ein Substrat ( 4 ) ,
metallisch oder keramisch,
eine Anbindungsschicht (7),
entweder metallisch oder keramisch,
zumindest eine Schicht (10, 19) aus dem keramischen Mate rial nach einem oder mehreren der Ansprüche 1 bis 10 oder eine Schicht nach einem oder zwei der Ansprüche 11, 12 oder 13.
15. Schichtsystem nach Anspruch 14,
bei dem eine keramische Anbindungsschicht (16) zwischen einer äußeren Schicht (19) vorhanden ist,
insbesondere wobei die Anbindungsschicht (7) Yttrium-teil- stabilisiertes Zirkonoxid aufweist,
insbesondere daraus besteht.
16. Schichtsystem nach Anspruch 14 oder 15,
bei dem zumindest die äußere keramische Schicht (19) seg mentiert ist.
EP19707278.8A 2018-03-14 2019-02-12 Keramisches material, schicht und schichtsystem Withdrawn EP3765426A1 (de)

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KR20200130407A (ko) 2020-11-18

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