EP0217991A1 - Beschichtung auf Keramikbasis - Google Patents

Beschichtung auf Keramikbasis Download PDF

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Publication number
EP0217991A1
EP0217991A1 EP85307128A EP85307128A EP0217991A1 EP 0217991 A1 EP0217991 A1 EP 0217991A1 EP 85307128 A EP85307128 A EP 85307128A EP 85307128 A EP85307128 A EP 85307128A EP 0217991 A1 EP0217991 A1 EP 0217991A1
Authority
EP
European Patent Office
Prior art keywords
coating
ceramic material
substrate
layers
layer
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Withdrawn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
EP85307128A
Other languages
English (en)
French (fr)
Inventor
Keith Macrae Moore
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.)
Repco Ltd
Repco Research Pty Ltd
Original Assignee
Repco Ltd
Repco Research Pty Ltd
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
Priority to AU40544/85A priority Critical patent/AU4054485A/en
Application filed by Repco Ltd, Repco Research Pty Ltd filed Critical Repco Ltd
Priority to EP85307128A priority patent/EP0217991A1/de
Priority to JP60227620A priority patent/JPS6293359A/ja
Publication of EP0217991A1 publication Critical patent/EP0217991A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas

Definitions

  • This invention relates generally to ceramic material coatings for a substrate, and in particular to the coating of a subtrate surface of an article in order to provide the article with a thermal barrier.
  • the invention is applicable to the coating of combustion engine components such as piston crowns, cylinder walls, cylinder heads, valve heads, and exhaust ports to reduce combustion heat loss in an effort to approach adiabatic operation of the engine. It will be convenient to hereinafter disclose this invention in relation to this application although it should be appreciated that the invention is applicable to other coating applications.
  • Ceramic materials are used because of favourable properties such as low thermal conductivity, high strength, high fracture toughness, high thermal shock resistance, good wear resistance, thermal expansion matching that of steel or iron with which the material is generally used, and a high resistance to erosion and corrosion.
  • One such ceramic material particularly used is partially stabilised zirconia (known as PSZ). Ceramic material may be formed into mono­lithic engine components such as cylinder liners and piston crowns, as well as being coated onto those components.
  • the present invention provides in one aspect a coating for a substrate, the coating including a plurality of superimposed coating layers, at least some of the layers having a composition containing a proportional amount of a ceramic material, characterised in that the proportional amount of ceramic material varies between coating layers.
  • the present invention also provides in another aspect a process for applying a coating to a substrate, including superimposing a plurality of coating layers onto the substrate, at least some of the layers having a composition containing a proportional amount of a ceramic material, characterised in that the proportional amount of ceramic material varies between coating layers.
  • the coating layers are arranged so as to be generally or at least substantially gradated relative to each other according to the amount of ceramic material contained in the layer composition.
  • the layers are arranged so that the proportional amounts of ceramic material successively increase from the substrate.
  • At least one of the coating layers preferably contains less than about 50% by volume of ceramic material.
  • the coating layer immediately adjacent the substrate preferably contains 0% or about 0% by volume ceramic material. This coating layer preferably acts as a bonding or transition layer between the substrate and remaining layers.
  • At least one of the coating layers preferably contains more than about 50% by volume of ceramic material.
  • the coating layer outermost from the substrate preferably contains 100% or about 100% by volume ceramic material.
  • the coating layers preferably have a composition density that varies from layer to layer in accordance with their proportional amount of ceramic material.
  • the layer density increases with increasing amounts of ceramic material so that the coating preferably has a density gradient that increases outwardly from the substrate.
  • the same ceramic material is preferably used in each of those coating layers in which it is present.
  • the coating layer compositions containing less than 100% ceramic material preferably contain a filler material in a 100% balance amount. That filler material is preferably compatible with the ceramic material, and is preferably a metallic material.
  • Each of the coating layers are preferably approximately the same thickness. Moreover, those layers are preferably of a consistent thickness throughout their extent.
  • each coating layer is applied by spraying onto the substrate or preceding layer.
  • Each layer composition is preferably prepared to a powder state and then heated to melt for spraying.
  • Suitable thermal spray apparatus is preferably provided to enable coating application.
  • the coating includes at least three coating layers.
  • the layer immediately adjacent the substrate contains about 0% ceramic material
  • the outermost layer contains about 100% ceramic material whilst the or each intermediate coating layer contains an amount of ceramic material between about 0% and 100% by volume.
  • three intermediate layers may be provided, successive layers containing about 25%, 50% and 75% of ceramic material by volume.
  • the ceramic material is a zirconia material. That ceramic material may be fully or partially stabilised zirconia material. That ceramic material may be a yttria zirconia material.
  • the coating layers containing less than 100% ceramic material contain a balance amount of filler material of any suitable metal or alloy thereof.
  • the material may be nickel-chromium, although nickel or chromium, or other metals or alloys thereof, may be equally suitable depending on the composition of the substrate and nature of the ceramic material.
  • the substrate may generally comprise a metal, such as steel or iron and alloys thereof.
  • each coating layer is about 0.005 inches in thickness.
  • each coating layer is sprayed with thermal spray apparatus utilising plasma flame as the heat source for melting the layer composition.
  • thermal spray apparatus utilising plasma flame as the heat source for melting the layer composition.
  • Such apparatus may be constructed and utilised as will be well known by those skilled in the relevant art.
  • the substrate surface to which the layers are to be applied may be appropriately prepared.
  • that substrate surface may be cleaned and roughened such as by grit blasting.
  • the outermost surface of the coating may also be treated as desired, for example, smoothed such as by grinding.
  • the coating of the present invention enables reduction in the quantity of ceramic material used, and as a result a reduction in the overall weight, in the article to which the coating is applied when compared to previous arrangements for providing such articles made at least in part of ceramic material. This is achieved without detriment to the performance of articles, such as combustion engine components, to which the coating is particularly applicable. Indeed, it is believed that the thermal conductivity of the coating may be lower than that of monolithic ceramic material.
  • the process of providing the coating of the present invention can be conducted utilising existing apparatus and to that extent may not require additional high capital investment. This may minimise the cost of providing articles with the coating of the present invention and thus the cost of those articles themselves.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP85307128A 1984-03-28 1985-10-04 Beschichtung auf Keramikbasis Withdrawn EP0217991A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU40544/85A AU4054485A (en) 1984-03-28 1984-03-30 Ceramic laminates
EP85307128A EP0217991A1 (de) 1985-10-04 1985-10-04 Beschichtung auf Keramikbasis
JP60227620A JPS6293359A (ja) 1985-10-04 1985-10-12 セラミツク材コ−テイング

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85307128A EP0217991A1 (de) 1985-10-04 1985-10-04 Beschichtung auf Keramikbasis

Publications (1)

Publication Number Publication Date
EP0217991A1 true EP0217991A1 (de) 1987-04-15

Family

ID=8194390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85307128A Withdrawn EP0217991A1 (de) 1984-03-28 1985-10-04 Beschichtung auf Keramikbasis

Country Status (2)

Country Link
EP (1) EP0217991A1 (de)
JP (1) JPS6293359A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238349A (en) * 1989-11-25 1991-05-29 T & N Technology Ltd Ceramic faced i.c. engine valves
AT396120B (de) * 1988-04-13 1993-06-25 Stangl Kurt Dipl Ing Verfahren zum beschriften heisser stahlbloecke
AT396119B (de) * 1988-04-08 1993-06-25 Stangl Kurt Dipl Ing Verfahren zum beschriften heisser stahlbloecke
EP0580097A1 (de) * 1992-07-20 1994-01-26 HUGHES MISSILE SYSTEMS COMPANY (a Delaware corporation) Verfahren zum Herstellen von dielektrischen Überzügen aus magnetischem Cermet-Material durch Plasma-Sprühen von zusammengesetzten Partikeln
EP0583009A1 (de) * 1992-08-12 1994-02-16 Kabushiki Kaisha Toshiba Verfahren zur Herstellung eines keramischen Überzuges mit metallischen Substraten
GB2305672A (en) * 1995-09-29 1997-04-16 Aea Technology Plc An electrically isolating support for electronic components
WO1999051790A1 (en) * 1998-04-08 1999-10-14 Caterpillar Inc. A process for applying a functional gradient material coating to a component for improved performance
EP1160348A2 (de) * 2000-05-22 2001-12-05 Praxair S.T. Technology, Inc. Verfahren zur Herstellung von Gegenständen mit Gradientenbeschichtungen
EP1382707A1 (de) * 2002-07-17 2004-01-21 Siemens Aktiengesellschaft Schichtsystem
RU2640239C1 (ru) * 2016-07-12 2017-12-27 Федеральное государственное бюджетное образовательное учреждение высшего образования Новосибирский государственный аграрный университет Способ получения лакокрасочных покрытий при ремонтном окрашивании рабочих органов технологических машин

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091548A (en) * 1959-12-15 1963-05-28 Union Carbide Corp High temperature coatings
FR1393475A (fr) * 1964-02-11 1965-03-26 Desmarquest Et Cie L Revêtements thermiquement isolants pour soupapes, pistons et chambres d'explosion de moteurs
US3758233A (en) * 1972-01-17 1973-09-11 Gen Motors Corp Vibration damping coatings
US4248940A (en) * 1977-06-30 1981-02-03 United Technologies Corporation Thermal barrier coating for nickel and cobalt base super alloys
WO1982001898A1 (en) * 1980-12-05 1982-06-10 Kvernes Ingard Method for coating a metal with a protection layer resistant to hot gas corrosion
JPS5815742A (ja) * 1981-07-21 1983-01-29 Nippon Kokan Kk <Nkk> 触火面を有するエンジン用部品
JPS5852469A (ja) * 1981-09-24 1983-03-28 Nippon Kokan Kk <Nkk> デイ−ゼルエンジン用排気弁
EP0075228A2 (de) * 1981-09-23 1983-03-30 Battelle-Institut e.V. Wärmedämmende, hochtemperatur- und thermoschockbeständige Beschichtung auf Keramikbasis
EP0123952A2 (de) * 1983-04-29 1984-11-07 Goetze Ag Verschleissfeste Beschichtung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091548A (en) * 1959-12-15 1963-05-28 Union Carbide Corp High temperature coatings
FR1393475A (fr) * 1964-02-11 1965-03-26 Desmarquest Et Cie L Revêtements thermiquement isolants pour soupapes, pistons et chambres d'explosion de moteurs
US3758233A (en) * 1972-01-17 1973-09-11 Gen Motors Corp Vibration damping coatings
US4248940A (en) * 1977-06-30 1981-02-03 United Technologies Corporation Thermal barrier coating for nickel and cobalt base super alloys
WO1982001898A1 (en) * 1980-12-05 1982-06-10 Kvernes Ingard Method for coating a metal with a protection layer resistant to hot gas corrosion
JPS5815742A (ja) * 1981-07-21 1983-01-29 Nippon Kokan Kk <Nkk> 触火面を有するエンジン用部品
EP0075228A2 (de) * 1981-09-23 1983-03-30 Battelle-Institut e.V. Wärmedämmende, hochtemperatur- und thermoschockbeständige Beschichtung auf Keramikbasis
JPS5852469A (ja) * 1981-09-24 1983-03-28 Nippon Kokan Kk <Nkk> デイ−ゼルエンジン用排気弁
EP0123952A2 (de) * 1983-04-29 1984-11-07 Goetze Ag Verschleissfeste Beschichtung

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DERWENT, 85-317039 [51], N85-235641; & AU - A - 8 540 544 (REPCO LTD.) 03-10-1985 *
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 139 (C-171) [1284], 17th June 1983; & JP - A - 58 52 469 (NIPPON KOKAN K.K.) 28-03-1983 *
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 92 (M-208) [1237], 16th April 1983; & JP - A - 58 15 742 (NIPPON KOKAN K.K.) 29-01-1983 *
SOVIET POWDER METALLURGY AND METAL CERAMICS, vol. 11, no. 3, March 1972, page 253, New York, US; D.M. KARPINOS et al.: "Improving the adhesion of plasma-sprayed coatings to articles" *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT396119B (de) * 1988-04-08 1993-06-25 Stangl Kurt Dipl Ing Verfahren zum beschriften heisser stahlbloecke
AT396120B (de) * 1988-04-13 1993-06-25 Stangl Kurt Dipl Ing Verfahren zum beschriften heisser stahlbloecke
GB2238349A (en) * 1989-11-25 1991-05-29 T & N Technology Ltd Ceramic faced i.c. engine valves
GB2238349B (en) * 1989-11-25 1993-09-15 T & N Technology Ltd Ceramic coated engine valves.
EP0580097A1 (de) * 1992-07-20 1994-01-26 HUGHES MISSILE SYSTEMS COMPANY (a Delaware corporation) Verfahren zum Herstellen von dielektrischen Überzügen aus magnetischem Cermet-Material durch Plasma-Sprühen von zusammengesetzten Partikeln
US6123998A (en) * 1992-08-12 2000-09-26 Kabushiki Kaisha Toshiba Ceramic coating method for metallic substrate utilizing a transitional layer of ceramic-metal
EP0583009A1 (de) * 1992-08-12 1994-02-16 Kabushiki Kaisha Toshiba Verfahren zur Herstellung eines keramischen Überzuges mit metallischen Substraten
GB2305672A (en) * 1995-09-29 1997-04-16 Aea Technology Plc An electrically isolating support for electronic components
US6048586A (en) * 1996-06-05 2000-04-11 Caterpillar Inc. Process for applying a functional gradient material coating to a component for improved performance
WO1999051790A1 (en) * 1998-04-08 1999-10-14 Caterpillar Inc. A process for applying a functional gradient material coating to a component for improved performance
EP1160348A2 (de) * 2000-05-22 2001-12-05 Praxair S.T. Technology, Inc. Verfahren zur Herstellung von Gegenständen mit Gradientenbeschichtungen
EP1160348A3 (de) * 2000-05-22 2003-10-29 Praxair S.T. Technology, Inc. Verfahren zur Herstellung von Gegenständen mit Gradientenbeschichtungen
EP1382707A1 (de) * 2002-07-17 2004-01-21 Siemens Aktiengesellschaft Schichtsystem
WO2004007787A1 (de) * 2002-07-17 2004-01-22 Siemens Aktiengesellschaft Schichtsystem
RU2640239C1 (ru) * 2016-07-12 2017-12-27 Федеральное государственное бюджетное образовательное учреждение высшего образования Новосибирский государственный аграрный университет Способ получения лакокрасочных покрытий при ремонтном окрашивании рабочих органов технологических машин

Also Published As

Publication number Publication date
JPS6293359A (ja) 1987-04-28

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Inventor name: MOORE, KEITH MACRAE