KR970705469A - 복수의 피복층을 구비한 보호 열 장벽 피복재 복합물(Protected Thermal Barrier Coating Composite With Multiple Coatings) - Google Patents

복수의 피복층을 구비한 보호 열 장벽 피복재 복합물(Protected Thermal Barrier Coating Composite With Multiple Coatings) Download PDF

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KR970705469A
KR970705469A KR1019970701240A KR19970701240A KR970705469A KR 970705469 A KR970705469 A KR 970705469A KR 1019970701240 A KR1019970701240 A KR 1019970701240A KR 19970701240 A KR19970701240 A KR 19970701240A KR 970705469 A KR970705469 A KR 970705469A
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oxide
protective
coating
nitride
group
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KR100463008B1 (ko
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웨이네 찰스 하즈
마르크스 프레스톤 브롬
커티스 알란 존슨
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제이 엘. 차스킨
제너럴 일렉트릭 캄파니
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    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • C—CHEMISTRY; METALLURGY
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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
    • C23C28/04—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
    • C23C28/048—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 with layers graded in composition or physical properties
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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
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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
    • C23C28/34—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
    • 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
    • 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
    • C23C28/341—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 carbide layer
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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
    • C23C28/34—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
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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
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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
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/36—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including layers graded in composition or physical properties
    • C—CHEMISTRY; METALLURGY
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    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
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    • F05D2300/00—Materials; Properties thereof
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    • F05D2300/21—Oxide ceramics
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    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
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Abstract

본 발명은 작동 온도에서 환경 오염물의 해로운 영향으로부터 열 장벽 피복재를 보호하는 복합물에 관한 것이다. 열 장벽 피복재 부품들은 용융된 오염 공융혼합물이 열 장벽 피복재 내의 개구로 침투하는 것을 감소시키는 적어도 2개의 외부 보호 피복재를 갖고 있다.

Description

복수의 피복층을 구비한 보호 열 장벽 피복재 복합물(Protected Thermal Barrier Coating Composite With Multiple Coatings)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (20)

  1. 열 장벽 피복재의 외부 표면을 덮는 연속적인 제1보호 피복재와 상기 제1보호 피복재를 덮는 적어도 하나의 제2보호 피복재를 갖는 일부분 상에 열 장벽 피복재를 포함하는 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  2. 제1항에 있어서, 제1보호 피복재는 희생 산화물 피복재 또는 불침투성 장벽 피복재인 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  3. 제2항에 있어서, 희생 산화물 피복재는 알루미나, 마그네시아, 크로미아, 칼시아, 칼슘 지르코네이트, 스칸디아, 실리카, 마그네슘, 알루미늄 산화물 및 그 혼합물로 구성된 그룹으로부터 선택되는 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  4. 제3항에 있어서, 희생 산화물 피복재의 유효량은 작동 온도에서 오염물 공융 혼합물의 용융 온도를 열 장벽 피복제의 일부분의 표면 온도보다 약 10℃높게 증가시키는 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  5. 제2항에 있어서, 불침투성 장벽 피복재는 금속 산화물, 금속 탄화물, 금속 질화물, 금속 규화물, 귀금속 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 금속 산화물 피복재는 실리콘 산화물, 탄탈 산화물, 스칸듐 산화물, 알루미늄 산화물, 하프늄 산화물, 지르코늄 산화물, MgAl2O4칼슘 지르코네이트 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 상기 금속 탄화물 피복재는 실리콘 탄화물, 탄탈 탄화물, 티타늄 탄화물, 텅스텐 탄화물, 실리콘 옥시 탄화물(SiOC) 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 금속 질화물 피복재는 실리콘 질화물, 지르코늄 질화물, 탄탈 질화물, 붕소 질화물 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 상기 금속 규화물 피복재는 크롬 규화물, 몰리브덴 규화물, 탄탈 규화물, 티타늄 규화물, 텅스텐 규화물, 지르코늄 규화물 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 귀금속 피복재는 백금, 팔라듐, 은, 금, 루세늄, 로듐, 이리듐 및 그 혼합물로 이루어진 그룹으로부터 선택되는 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  6. 제1항에 있어서, 상기 제2보호 피복재는 불침투성 장벽 피복재, 희생 산화물 피복재 또는 비습윤성 피복재이고, 불침투성 장벽 피복재는 금속 산화물, 금속 탄화물, 금속 질화물, 금속 규화물, 귀금속 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 금속 산화물 피복재는 실리콘 산화물, 탄탈 산화물, 스칸듐 산화물, 알루미늄 산화물, 하프늄 산화물, 지르코늄 산화물, MgAl2O4, 칼슘 지르코네이트 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 상기 금속 탄화물 피복재는 실리콘 탄화물, 탄탈 탄화물, 티타늄 탄화물, 텅스텐 탄화물, 실리콘 옥시 탄화물(SiOC) 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 금속 질화물 피복재는 실리콘 질화물, 지르코늄 질화물, 탄탈 질화물, 붕소 질화물 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 상기 금속 규화물 피복재는 크롬 규화물, 몰리브덴 규화물, 탄탈 규화물, 티타늄 규화물, 텅스텐 규화물, 지르코늄 규화물 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 귀금속 피복재는 백금, 팔라듐, 은, 금, 루세늄, 로듐, 이리듐 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 희생 산화물 피복재는 알루미나, 마그네시아, 크로미아, 칼시아, 칼슘 지르코네이트, 스칸디아, 실리카, 마그네슘, 알루미늄 산화물 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 비습윤성 피복재는 실리콘 산화물, 지르코늄 산화물, 하프늄 산화물, 베릴륨 산화물, 란탄 산화물, 실리콘 탄화물, 탄탈 탄화물, 티타늄 탄화물, 텅스텐 탄화물, 실리콘 질화물, 알루미늄 질화물, 티타늄 질화물, 지르코늄 질화물, 하프늄 질화물, 니오브 질화물, 틴탈 질화물, 붕소 질화물, 크롬 규화물, 몰리브덴 규화물, 탄탈 규화물, 티타늄 규화물, 텅스텐 규화물, 지르코늄 규화물, 백금, 팔라듐, 은, 금, 루세늄, 로듐, 이리듐 및 그 혼합물로 이루어진 그룹으로부터 선택되는 것을 특징으로 하는 보호열 장벽 피복재 복합물.
  7. 제1항에 있어서, 보호 피복재의 두께는 약 0.2 내지 250마이크로미터인 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  8. 제1항에 있어서, 열 장벽 피복재는 세라믹 재료인 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  9. 제8항에 있어서, 세라믹 재료는 이트리아-안정 지르코니아. 스칸디아-안정 지르코니아, 칼시아-안정 지르코니아, 마그네시아-안정 지르코니아, 및 알루미나-안정지르코니아로 이루어진 그룹으로부터 선택된 화학적 안정 지르코니아인 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  10. 제9항에 있어서, 화학적 안정 지르코니아는 이트리아-안정 지르코니아인 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  11. 제10항에 있어서, 이트리아-안정 지르코니아는 약 8중량 퍼센트의 이트리아-92 중량 퍼센트의 지르코니아인 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  12. 제1항에 있어서, 상기 부품은 니켈 기재 합금, 코발트 기재 합금, 철 기재 합금 및 그 혼합물로 이루어진 그룹으로부터 선택된 합금인 것을 특징으로 하는 보호열 장벽 피복재 복합물.
  13. 불침투성 장벽 또는 희생 산화물 제1피복재를 열 장벽 피복재 상에 부착시키는 단계와, 비습윤성, 희생성 또는 불침투성인 적어도 하나의 다른 보호 제2피복재를 제1피복재 상에 부착시키는 단계를 포함하는 열 장벽 피복재 보호 복합물의 형성 방법.
  14. 제13항에 있어서, 보호 제1피복재의 두께는 약 0.2 내지 250마이크로미터이고, 보호 제2피복재의 두께는 약 0.2 내지 250마이크로미터인 것을 특징으로 하는 열 장벽 피복재 보호 복합물의 형성 방법.
  15. 제13항에 있어서, 보호 제1피복재는 졸-겔, 전기 도금, 공기 플라즈마 분사, 유기-금속의 화학적 증착, 물리적 증착 또는 화학적 증착에 의해 부착되며, 보호 제2피복재는 졸-겔, 전기 도금, 공기 플라즈마 분사, 유기-금속의 화학적 증착, 물리적 증착, 또는 화학적 증착에 의해 부착되는 것을 특징으로 하는 열 장벽 피복재 보호 복합물의 형성방법.
  16. 한 부품의 접착 피복 상의 열 장벽 피복재의 외부 표면 상에 적어도 2개의 연속 보호 피복재를 포함하는 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  17. 접착 피복을 갖는 엔진 구성 부품과, 접착 피복 상의 열 장벽 피복재와, 열 장벽 피복재 상의 적어도 2개의 보호 층들을 포함하는 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  18. 제16항에 있어서, 상기 부품은 터빈 부품인 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  19. 제16항에 있어서, 상기 보호 층들은, 불침투성 장벽 층 및 희생 층으로 구성된 그룹으로부터 선택된 제1보호 피복재와, 불침투성 장벽 피복재와 희생 산화물 피복재와 비습윤성 피복재로 이루어진 그룹으로부터 선택된 제2보호 피복재를 포함하고, 상기 층은 약 0.2 마이크로미터 내지 250마이크로미터의 두께를 갖고, 상기 피복재는 약 0.2 마이크로미터 내지 250 마이크로미터의 두께를 갖는 것을 특징으로 하는 보호 열 장벽 피복재 복합물.
  20. 제19항에 있어서, 불침투성 장벽 피복재는 금속 산화물, 금속 탄화물, 금속 질화물, 금속 규화물, 귀금속 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 금속 산화물 피복재는 실리콘 산화물, 탄탈 산화물, 스칸듐 산화물, 알루미늄 산화물, 하프늄 산화물, 지르코늄 산화물, MgAl2O4, 칼슘 지르코네이트 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 상기 금속 탄화물 피복재는 실리콘 탄화물, 탄탈 탄화물, 티타늄 탄화물, 텅스텐 탄화물, 실리콘 옥시 탄화물(SiOC) 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 금속 질화물 피복재는 실리콘 질화물, 지르코늄 질화물, 탄탈 질화물, 붕소 질화물 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 상기 금속 규화물 피복재는 크롬 규화물, 몰리브덴 규화물, 탄탈 규화물, 티타늄 규화물, 텅스텐 규화물, 지르코늄 규화물 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 상기 귀금속 피복재는 백금, 팔라듐, 은, 금, 루세늄, 로듐, 이리듐 및 그 혼합물로 이루어진 그룹으로부터 선택되며, 희생 산화물 피복재는 알루미나, 마그네시아, 크로미아, 칼시아, 칼슘 지르코네이트, 스칸디아, 실리카, 마그네슘 알루미늄 산화물 및 그 혼합물로 이루어진 그룹으로부터 선택되고, 비습윤성 피복재는 실리콘 산화물, 지르코늄 산화물, 하프늄 산화물, 베릴륨 산화물, 란탄 산화물, 실리콘 탄화물, 탄탈 탄화물, 티타늄 탄화물, 텅스텐 탄화물, 실리콘 질화물, 알루미늄 질화물, 티타늄 질화물, 지르코늄 질화물, 하프늄 질화물, 니오브 질화물, 탄탈 질화물, 붕소 질화물, 크롬 규화물, 몰리브덴 규화물, 탄탈 규화물, 티타늄 규화물, 텅스텐 규화물, 지르코늄 규화물, 백금, 팔라듐, 은, 금 루세늄, 로듐, 이리듐 및 그 혼합물로 이루어진 그룹으로부터 선택되는 것을 특징으로 하는 보호열 장벽 피복재 복합물.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970701240A 1995-06-26 1996-04-01 복수의피복층을구비한보호열장벽피복재복합물 KR100463008B1 (ko)

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