EP1362933A1 - Revêtement de barrière thermique - Google Patents

Revêtement de barrière thermique Download PDF

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Publication number
EP1362933A1
EP1362933A1 EP02010837A EP02010837A EP1362933A1 EP 1362933 A1 EP1362933 A1 EP 1362933A1 EP 02010837 A EP02010837 A EP 02010837A EP 02010837 A EP02010837 A EP 02010837A EP 1362933 A1 EP1362933 A1 EP 1362933A1
Authority
EP
European Patent Office
Prior art keywords
matrix material
barrier coating
insulation layer
thermal insulation
thermal barrier
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Withdrawn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
EP02010837A
Other languages
German (de)
English (en)
Inventor
Jens Birkner
Wernert Dr. 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 AG
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Priority to EP02010837A priority Critical patent/EP1362933A1/fr
Priority to PCT/EP2003/004270 priority patent/WO2003097901A1/fr
Priority to EP03752714A priority patent/EP1511883A1/fr
Priority to JP2004505412A priority patent/JP2005525472A/ja
Publication of EP1362933A1 publication Critical patent/EP1362933A1/fr
Priority to US10/756,670 priority patent/US20040146741A1/en
Withdrawn legal-status Critical Current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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process

Definitions

  • the invention relates to a thermal barrier coating according to claim 1.
  • Thermal insulation layers are applied to heat-stressed components, such as e.g. Turbine blades applied to a gas turbine Heat-sensitive, for example metallic substrate of these components protect from heat.
  • the thermal insulation layer exists for example, made of zirconium oxide or partially stabilized zirconium oxide with yttrium oxide.
  • EP 1 029 101 B1 shows a thermal barrier coating which has the composition LaAlO 3 , that is to say a perovskite.
  • U.S. Patent 5,310,575 shows a material in which zirconia in is mixed into a matrix of a spinel.
  • GB 745,257 discloses a thermal barrier coating, the Thermal insulation layer a spinel, a pyrochlore or zirconium oxide is.
  • US 5,914,189 discloses a thermal barrier coating which is a mixture of a spinel and calcium zirconate (CaZrO 3 ).
  • the object is achieved by a thermal barrier coating according to claim 1 solved.
  • the thermal barrier coating according to the invention is a mixture of a matrix material such as zirconium oxide or aluminum oxide and at least one admixed material that has a reduced sintering potential at the operating temperatures of the thermal barrier coating.
  • admixed materials are preferably ceramics from the systems of pyrochlores, such as, for example, La 2 Zr 2 O 7 , La 2 Hf 2 O 7 and perovskites, such as, for example, CaZrO 3 , LaAlO 3 and spinels, such as, for example, MgCr 2 O 4 , MgAl 2 O 4 , NiAl 2 O 4 with a volume fraction of 10% and 50%.
  • the matrix material consists, for example, of zirconium oxide (ZrO 2 ) or partially stabilized zirconium oxide (ZrO 2 and 7% - 8% yttrium oxide (Y 2 O 3 ) or another ceramic.
  • zirconium oxide enables the stretch tolerance to be set automatically in the high temperature range.
  • the expansion coefficients of the admixture used are, for example, but not necessarily above or below the expansion coefficient of the zirconium oxide layer.
  • cracks and voids are additionally created between the particles from the admixtures and the zirconium oxide during use at high temperatures, which compensate for the elongation tolerance lost in the zirconium oxide matrix, since the admixtures do not sinter, i.e. do not shrink or shrink to a lesser extent, even if the coefficient of thermal expansion is the same.
  • the matrix material stretches more at high temperatures off than the admixture, brief compressive stresses arise, who relax, however. Through the onset of sintering in turn, porosities and cracks are created, the one create increasing porosity.
  • the matrix material stretches less at high temperatures out as the admixture, so arise through the sintering the matrix additionally cracks and porosities between matrix and admixture, which compensates for lost ductility cause cracking or porosity.
  • microporosity / microcracks in the thermal barrier coating will that is, by adding a reduced sintering potential and / or different expansion coefficients of matrix and admixture received.
  • the microstructure can be created by a specifically selected mixture can be set so that one for the elongation tolerance of the Thermal insulation layer system necessary porosity and reduction the interlocking of the stem structures achieved with EBPVD layers becomes.
  • the oxygen conductivity can be reduced so that oxidation of the MCrAlY layer is also reduced becomes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (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)
EP02010837A 2002-05-15 2002-05-15 Revêtement de barrière thermique Withdrawn EP1362933A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP02010837A EP1362933A1 (fr) 2002-05-15 2002-05-15 Revêtement de barrière thermique
PCT/EP2003/004270 WO2003097901A1 (fr) 2002-05-15 2003-04-24 Couche d'isolation thermique
EP03752714A EP1511883A1 (fr) 2002-05-15 2003-04-24 Couche d'isolation thermique
JP2004505412A JP2005525472A (ja) 2002-05-15 2003-04-24 断熱層
US10/756,670 US20040146741A1 (en) 2002-05-15 2004-01-13 Thermal barrier coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02010837A EP1362933A1 (fr) 2002-05-15 2002-05-15 Revêtement de barrière thermique

Publications (1)

Publication Number Publication Date
EP1362933A1 true EP1362933A1 (fr) 2003-11-19

Family

ID=29265933

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02010837A Withdrawn EP1362933A1 (fr) 2002-05-15 2002-05-15 Revêtement de barrière thermique
EP03752714A Withdrawn EP1511883A1 (fr) 2002-05-15 2003-04-24 Couche d'isolation thermique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03752714A Withdrawn EP1511883A1 (fr) 2002-05-15 2003-04-24 Couche d'isolation thermique

Country Status (4)

Country Link
US (1) US20040146741A1 (fr)
EP (2) EP1362933A1 (fr)
JP (1) JP2005525472A (fr)
WO (1) WO2003097901A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080058A1 (fr) * 2006-01-09 2007-07-19 Siemens Aktiengesellschaft Composant compact en ceramique, couche ceramique a tres forte porosite, utilisation de cette couche et composant la contenant
DE102007030602A1 (de) * 2007-06-28 2009-01-02 Siemens Ag Bauteil mit einer keramischen Schicht, in die Partikel eingelagert sind, und Verfahren zu dessen Herstellung
FR2925576A3 (fr) * 2007-12-21 2009-06-26 Renault Sas Procede de gestion d'un circuit d'huile de moteur a combustion interne

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150274981A1 (en) * 2010-09-22 2015-10-01 Skyworks Solutions, Inc. Dual function lanthanide coatings
CN107473739B (zh) * 2017-09-08 2020-08-07 中国人民解放军国防科技大学 锆酸镧复相陶瓷及其制备方法和应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745257A (en) * 1952-08-08 1956-02-22 Norton Grinding Wheel Co Ltd Coating metals and other material with stable metal oxides
US5310575A (en) * 1987-11-03 1994-05-10 Robert Bosch Gmbh Method of making a porous ceramic protective layer on an electrode of an electrochemical sensor for exposure to hot gas
WO1999042630A1 (fr) * 1998-02-20 1999-08-26 Rainer Gadow Materiau thermo-isolant et son procede de production

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4245661B2 (ja) * 1995-06-26 2009-03-25 ゼネラル・エレクトリック・カンパニイ 多重被膜で保護した遮熱コーティング複合物
WO1999023278A1 (fr) * 1997-11-03 1999-05-14 Siemens Aktiengesellschaft Produit, en particulier composant d'une turbine a gaz, a couche thermo-isolante en ceramique
JP4218744B2 (ja) * 1998-09-10 2009-02-04 日鉄ハード株式会社 溶射材料およびそれを溶射して形成した皮膜を有する部材
EP1247941A1 (fr) * 2001-04-03 2002-10-09 Siemens Aktiengesellschaft Aube de turbine à gaz

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745257A (en) * 1952-08-08 1956-02-22 Norton Grinding Wheel Co Ltd Coating metals and other material with stable metal oxides
US5310575A (en) * 1987-11-03 1994-05-10 Robert Bosch Gmbh Method of making a porous ceramic protective layer on an electrode of an electrochemical sensor for exposure to hot gas
WO1999042630A1 (fr) * 1998-02-20 1999-08-26 Rainer Gadow Materiau thermo-isolant et son procede de production

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080058A1 (fr) * 2006-01-09 2007-07-19 Siemens Aktiengesellschaft Composant compact en ceramique, couche ceramique a tres forte porosite, utilisation de cette couche et composant la contenant
DE102007030602A1 (de) * 2007-06-28 2009-01-02 Siemens Ag Bauteil mit einer keramischen Schicht, in die Partikel eingelagert sind, und Verfahren zu dessen Herstellung
US7763367B2 (en) 2007-06-28 2010-07-27 Siemens Aktiengesellschaft Component with a ceramic coating, into which particles are embedded, and method for producing said component
FR2925576A3 (fr) * 2007-12-21 2009-06-26 Renault Sas Procede de gestion d'un circuit d'huile de moteur a combustion interne

Also Published As

Publication number Publication date
JP2005525472A (ja) 2005-08-25
US20040146741A1 (en) 2004-07-29
WO2003097901A1 (fr) 2003-11-27
EP1511883A1 (fr) 2005-03-09

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