DE19900182A1 - Metal coating is applied onto a ceramic substrate, especially a silicon nitride ceramic substrate of a heating plate, by thermal spraying after physical vapor deposition of a metallic adhesion promoter - Google Patents
Metal coating is applied onto a ceramic substrate, especially a silicon nitride ceramic substrate of a heating plate, by thermal spraying after physical vapor deposition of a metallic adhesion promoterInfo
- Publication number
- DE19900182A1 DE19900182A1 DE1999100182 DE19900182A DE19900182A1 DE 19900182 A1 DE19900182 A1 DE 19900182A1 DE 1999100182 DE1999100182 DE 1999100182 DE 19900182 A DE19900182 A DE 19900182A DE 19900182 A1 DE19900182 A1 DE 19900182A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- ceramic substrate
- thermal spraying
- metallic
- adhesion promoter
- 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- Withdrawn
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 18
- 239000011248 coating agent Substances 0.000 title claims abstract description 14
- 238000000576 coating method Methods 0.000 title claims abstract description 14
- 239000000919 ceramic Substances 0.000 title claims abstract description 12
- 238000007751 thermal spraying Methods 0.000 title claims abstract description 12
- 239000002318 adhesion promoter Substances 0.000 title claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 title claims abstract description 10
- 238000005240 physical vapour deposition Methods 0.000 title abstract 3
- 229910052581 Si3N4 Inorganic materials 0.000 title abstract 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 22
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011651 chromium Substances 0.000 claims abstract description 9
- 229910002543 FeCrAlY Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 18
- 239000007769 metal material Substances 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 150000001247 metal acetylides Chemical class 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 2
- 230000001070 adhesive effect Effects 0.000 claims 2
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910005438 FeTi Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- 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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Aufbringen von Metall aufweisendem Werkstoff durch thermisches Spritzen auf keramisches, insbesondere SiN auf weisendes Substrat. Ferner betrifft die Erfindung eine auf keramisches, insbesonde re SiN aufweisendes Substrat aufgebrachte Beschichtung mit einer durch thermi sches Spritzen erzeugten äußeren Schicht aus Metall aufweisendem Werkstoff.The invention relates to a method for applying metal Material by thermal spraying on ceramic, especially SiN pointing substrate. Furthermore, the invention relates to a ceramic, in particular re SiN-containing substrate applied coating with a thermi spraying produced outer layer of metal-containing material.
Bei keramischen, insbesondere SiN aufweisenden Werkstoffen handelt es sich um elektrische Isolatoren mit zugleich sehr hoher Wärmeleitfähigkeit. Sie eignen sich daher beispielsweise für Heizelemente.Ceramic materials, in particular those with SiN, are electrical insulators with very high thermal conductivity. They are suitable therefore for example for heating elements.
Jedoch sind keramische Materialien und insbesondere SiN chemisch träge Werk stoffe mit geringer Affinität zu bekannten Materialien. Dies gilt insbesondere auch für durch thermisches Spritzen aufzubringende Werkstoffe. Keramische Materialien und insbesondere SiN gehen jedoch keine hinreichende Verbindung mit solchen Werkstoffen ein; sie lösen sich.However, ceramic materials and especially SiN are chemically inert substances with low affinity for known materials. This is especially true for materials to be applied by thermal spraying. Ceramic materials and in particular SiN, however, do not have a sufficient connection with such Materials; they come loose.
Es ist daher Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Beschich tung der eingangs genannten Art derart zu verbessern, daß durch thermisches Spritzen aufgebrachter Werkstoff sicher auf keramischem, insbesondere SiN auf weisendem Substrat hält.It is therefore an object of the present invention, a method and a coating device of the type mentioned to improve such that by thermal Spray safely applied material on ceramic, especially SiN pointing substrate.
Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art dadurch gelöst, daß zunächst im PVD-Verfahren ein metallischer Haftvermittler auf das Substrat und anschließend auf den Haftvermittler der Werkstoff durch thermisches Spritzen aufgebracht wird und somit eine Beschichtung der eingangs genannten Art eine im PVD-Verfahren erzeugte metallische Zwischenschicht aufweist, die als Haftvermittler zwischen dem Substrat und der äußeren Schicht liegt.This is achieved in a method of the type mentioned at the outset solved that first in the PVD process a metallic coupling agent on the Substrate and then on the bonding agent the material by thermal Spraying is applied and thus a coating of the type mentioned has a metallic intermediate layer produced in the PVD process, which as Adhesion promoter lies between the substrate and the outer layer.
Das Besondere der vorliegenden Erfindung besteht demnach darin, auf kerami schem, insbesondere SiN aufweisendem Substrat eine Kombination aus einer PVD- Schicht als Haftvermittler und einer thermischen Spritzschicht als äußere Funk tionsschicht aufzubringen. Dabei wurde mit der Erfindung die Erkenntnis gewon nen, daß mit Hilfe des PVD-Verfahrens aufgedampfte Schichten ein hohes Haftver mögen auf keramischen Materialien, insbesondere SiN besitzen und thermische Spritzschichten wiederum gut auf PVD-Schichten haften.The special feature of the present invention is therefore based on kerami a, in particular SiN substrate, a combination of a PVD Layer as an adhesion promoter and a thermal spray layer as an external radio application layer. Knowledge was gained with the invention NEN that layers deposited using the PVD process have a high adhesion may have on ceramic materials, especially SiN and thermal Spray layers in turn adhere well to PVD layers.
Thermische Spritzschichten besitzen gute elektrische Eigenschaften und sind im Hinblick hierauf in weiten Bereichen veränderbar. Deshalb eignet sich die Erfindung beispielsweise vorteilhaft zur Herstellung von Heizplatten aus keramischem, ins besondere SiN aufweisendem Substrat, wobei zur Bildung von Heizleitern in einem entsprechenden Muster eine Beschichtung aus metallischen Werkstoffen durch thermisches Spritzen auf dem keramischen Substrat erzeugt wird, nachdem erfin dungsgemäß zunächst im PVD-Verfahren ein metallischer Haftvermittler als Zwi schenlage auf das keramische Substrat aufgebracht worden ist. Die Form und Dicke der durch thermisches Spritzen erzeugten äußeren Schicht aus Metall auf weisendem Werkstoff wird dabei in Abhängigkeit von den gewünschten elek trischen und thermischen Eigenschaften gewählt. Diese äußere Schicht stellt einen elektrischen Widerstand in Form eines flächigen Leiters dar, wobei der Metall aufweisende Werkstoff in der Regel so eingestellt ist, daß der spezifische elek trische Widerstand von 0,1 bis 1000 Ωmm2/m veränderbar ist. Für das thermische Spritzen werden üblicherweise Plasmaverfahren, HVOF oder Flammspritzen einge setzt.Thermal spray coatings have good electrical properties and can be changed over a wide range. Therefore, the invention is advantageous, for example, for the production of heating plates made of ceramic, in particular SiN substrate, wherein to form heating conductors in a corresponding pattern, a coating of metallic materials is generated by thermal spraying on the ceramic substrate, according to the invention first in PVD -Procedure, a metallic adhesion promoter has been applied as an intermediate layer on the ceramic substrate. The shape and thickness of the outer layer of metal on the facing material produced by thermal spraying is selected depending on the desired electrical and thermal properties. This outer layer represents an electrical resistance in the form of a flat conductor, wherein the metal-containing material is usually set so that the specific electrical resistance from 0.1 to 1000 Ωmm 2 / m can be changed. For thermal spraying, plasma processes, HVOF or flame spraying are usually used.
Vorzugsweise weist der Haftvermittler Chrom auf oder besteht aus Chrom. The adhesion promoter preferably has chromium or consists of chromium.
Die Dicke der aus dem Haftvermittler hergestellten Zwischenlage beträgt etwa 1 bis 10 µm. Bei der Verwendung von Chrom hat sich eine Dicke der Schicht von etwa 5 µm als vorteilhaft herausgestellt.The thickness of the intermediate layer produced from the adhesion promoter is approximately 1 up to 10 µm. When using chromium, the layer has a thickness of about 5 µm was found to be advantageous.
Bei dem Metall aufweisenden Werkstoff kann es sich vorzugsweise um einen metallischen Werkstoff, insbesondere einen metallischen Matrixwerkstoff handeln. Zweckmäßigerweise werden Beimengungen von Oxiden und/oder Karbiden in den Metall aufweisenden Werkstoff eingebracht.The material comprising metal can preferably be one act metallic material, in particular a metallic matrix material. Mixtures of oxides and / or carbides in the Introduced metal material.
Vorzugsweise besteht der Metall aufweisende Werkstoff aus FeCrAlY oder NiCrMo- FeTi.The metal material preferably consists of FeCrAlY or NiCrMo- FeTi.
Die Dicke der aus dem Metall aufweisenden Werkstoff hergestellten Schicht beträgt üblicherweise etwa 20 µm bis 1 mm. Im Falle von FeCrAlY hat sich eine Dicke von etwa 50 µm als vorteilhaft herausgestellt.The thickness of the layer made of the metal-containing material is usually about 20 µm to 1 mm. In the case of FeCrAlY one has Thickness of about 50 microns was found to be advantageous.
Weitere vorteilhafte Ausführung der Erfindung sind in den abhängigen Ansprüchen gekennzeichnet.Further advantageous embodiments of the invention are in the dependent claims featured.
Die Erfindung wird nachfolgend anhand von zwei Beispielen näher erläutert.The invention is explained in more detail below with the aid of two examples.
Das zu beschichtende Substrat bestand aus SiN. Mit Hilfe des PVD-Verfahrens wurde als metallischer Haftvermittler eine Schicht aus Chrom mit einer Dicke von etwa 5 µm aufgebracht. Anschließend wurde durch thermisches Spritzen eine äußere Schicht aus FeCrAlY (Cr: 19 bis 25%/Al: 4 bis 8%/Ni: O/Rest Fe, Spuren Y) mit einer Dicke von etwa 50 µm aufgetragen. Messungen haben ergeben, daß die äußere Schicht aus FeCrAlY bei 24°C einen spezifischen elektrischen Wider stand von 1,7 Ωmm2/m und bei 350°C einen spezifischen Widerstand von 2,7 Ωmm2/m, eine Spannungsfestigkeit von mehr als 400 V und eine Temperaturbestän digkeit von über 500°C hat.The substrate to be coated was made of SiN. With the help of the PVD process, a layer of chrome with a thickness of approximately 5 μm was applied as a metallic adhesion promoter. An outer layer of FeCrAlY (Cr: 19 to 25% / Al: 4 to 8% / Ni: O / rest Fe, traces Y) with a thickness of about 50 μm was then applied by thermal spraying. Measurements have shown that the outer layer of FeCrAlY had a specific electrical resistance of 1.7 Ωmm 2 / m at 24 ° C and a specific resistance of 2.7 Ωmm 2 / m at 350 ° C, a dielectric strength of more than 400 V and has a temperature resistance of over 500 ° C.
Alternativ kann die äußere Schicht auch beispielsweise aus NiCrMoFeTi bestehen (Cr: 14 bis 18%/Mo: 14 bis 17%/Fe < 3%/Ti: 1%/Rest Ni).Alternatively, the outer layer can also consist of NiCrMoFeTi, for example (Cr: 14 to 18% / Mo: 14 to 17% / Fe <3% / Ti: 1% / balance Ni).
Claims (17)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999100182 DE19900182A1 (en) | 1999-01-07 | 1999-01-07 | Metal coating is applied onto a ceramic substrate, especially a silicon nitride ceramic substrate of a heating plate, by thermal spraying after physical vapor deposition of a metallic adhesion promoter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999100182 DE19900182A1 (en) | 1999-01-07 | 1999-01-07 | Metal coating is applied onto a ceramic substrate, especially a silicon nitride ceramic substrate of a heating plate, by thermal spraying after physical vapor deposition of a metallic adhesion promoter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19900182A1 true DE19900182A1 (en) | 2000-07-13 |
Family
ID=7893619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1999100182 Withdrawn DE19900182A1 (en) | 1999-01-07 | 1999-01-07 | Metal coating is applied onto a ceramic substrate, especially a silicon nitride ceramic substrate of a heating plate, by thermal spraying after physical vapor deposition of a metallic adhesion promoter |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19900182A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10201940A1 (en) * | 2002-01-19 | 2003-07-31 | Daimler Chrysler Ag | Method for heating fuel injected into an internal combustion engine, has a metal housing with thermally sprayed materials to form the heater |
| DE10320379A1 (en) * | 2003-05-06 | 2004-12-02 | Leoni Ag | A method for manufacturing heating elements in many different forms has conductive material flame sprayed on to a suitably shaped substrate material with an insulating layer |
| EP1479658A3 (en) * | 2003-05-22 | 2005-08-17 | United Technologies Corporation | Bond layer for silicon based substrates |
| CN112979351A (en) * | 2021-04-19 | 2021-06-18 | 清华大学 | Multilayer metal film-coated silicon nitride ceramic substrate and preparation method thereof |
| CN113149715A (en) * | 2021-04-19 | 2021-07-23 | 清华大学 | Multilayer metal-coated high-thermal-conductivity aluminum nitride ceramic substrate and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2705568A1 (en) * | 1977-02-10 | 1978-08-17 | Leybold Heraeus Gmbh & Co Kg | Application of solder, e.g. to glass, ceramics or plastics substrate - by atomising or vapour deposition, giving thin, uniform, reproducible layer |
| DE19701640A1 (en) * | 1997-01-10 | 1998-07-16 | Ego Elektro Geraetebau Gmbh | Efficient contact heat transfer cooking system |
-
1999
- 1999-01-07 DE DE1999100182 patent/DE19900182A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2705568A1 (en) * | 1977-02-10 | 1978-08-17 | Leybold Heraeus Gmbh & Co Kg | Application of solder, e.g. to glass, ceramics or plastics substrate - by atomising or vapour deposition, giving thin, uniform, reproducible layer |
| DE19701640A1 (en) * | 1997-01-10 | 1998-07-16 | Ego Elektro Geraetebau Gmbh | Efficient contact heat transfer cooking system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10201940A1 (en) * | 2002-01-19 | 2003-07-31 | Daimler Chrysler Ag | Method for heating fuel injected into an internal combustion engine, has a metal housing with thermally sprayed materials to form the heater |
| DE10320379A1 (en) * | 2003-05-06 | 2004-12-02 | Leoni Ag | A method for manufacturing heating elements in many different forms has conductive material flame sprayed on to a suitably shaped substrate material with an insulating layer |
| EP1479658A3 (en) * | 2003-05-22 | 2005-08-17 | United Technologies Corporation | Bond layer for silicon based substrates |
| CN112979351A (en) * | 2021-04-19 | 2021-06-18 | 清华大学 | Multilayer metal film-coated silicon nitride ceramic substrate and preparation method thereof |
| CN113149715A (en) * | 2021-04-19 | 2021-07-23 | 清华大学 | Multilayer metal-coated high-thermal-conductivity aluminum nitride ceramic substrate and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8130 | Withdrawal |