DE4102909A1 - Werkstuecke aus faserverstaerkter keramik - Google Patents

Werkstuecke aus faserverstaerkter keramik

Info

Publication number
DE4102909A1
DE4102909A1 DE4102909A DE4102909A DE4102909A1 DE 4102909 A1 DE4102909 A1 DE 4102909A1 DE 4102909 A DE4102909 A DE 4102909A DE 4102909 A DE4102909 A DE 4102909A DE 4102909 A1 DE4102909 A1 DE 4102909A1
Authority
DE
Germany
Prior art keywords
fiber
matrix
impregnated
ceramic
sic
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.)
Ceased
Application number
DE4102909A
Other languages
German (de)
English (en)
Inventor
Hermann Dipl Phys Dr Koeberle
Kilian Dipl Ing Peetz
August Dipl Chem D Muehlratzer
Hartmut Dr Greulich
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.)
MT Aerospace AG
Original Assignee
MAN Technologie 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 MAN Technologie AG filed Critical MAN Technologie AG
Priority to DE4102909A priority Critical patent/DE4102909A1/de
Priority to GB9126343A priority patent/GB2252315B/en
Priority to FR9201102A priority patent/FR2672239A1/fr
Publication of DE4102909A1 publication Critical patent/DE4102909A1/de
Ceased 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/04—Coating on selected surface areas, e.g. using masks
    • C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
    • 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
    • B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C04B35/571—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained from Si-containing polymer precursors or organosilicon monomers
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/02—Pretreatment of the material to be coated
    • C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
    • 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
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5244—Silicon carbide
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/614—Gas infiltration of green bodies or pre-forms
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/36—Non-oxidic
    • C04B2237/365—Silicon carbide
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/38—Fiber or whisker reinforced
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/58—Forming a gradient in composition or in properties across the laminate or the joined articles
    • C04B2237/582—Forming a gradient in composition or in properties across the laminate or the joined articles by joining layers or articles of the same composition but having different additives
    • C04B2237/584—Forming a gradient in composition or in properties across the laminate or the joined articles by joining layers or articles of the same composition but having different additives the different additives being fibers or whiskers
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/68—Forming laminates or joining articles wherein at least one substrate contains at least two different parts of macro-size, e.g. one ceramic substrate layer containing an embedded conductor or electrode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Ceramic Products (AREA)
  • Laminated Bodies (AREA)
DE4102909A 1991-01-31 1991-01-31 Werkstuecke aus faserverstaerkter keramik Ceased DE4102909A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE4102909A DE4102909A1 (de) 1991-01-31 1991-01-31 Werkstuecke aus faserverstaerkter keramik
GB9126343A GB2252315B (en) 1991-01-31 1991-12-11 Workpiece of fiber reinforced ceramic material and a method of manufacture thereof
FR9201102A FR2672239A1 (fr) 1991-01-31 1992-01-31 Piece d'óoeuvre en ceramique renforcee par des fibres, concernant notamment pour des pieces constitutives a l'entree du propulseur d'un avion, des disques de freins, gaines d'etancheite d'arbres de pompes ou autres.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4102909A DE4102909A1 (de) 1991-01-31 1991-01-31 Werkstuecke aus faserverstaerkter keramik

Publications (1)

Publication Number Publication Date
DE4102909A1 true DE4102909A1 (de) 1992-08-06

Family

ID=6424109

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4102909A Ceased DE4102909A1 (de) 1991-01-31 1991-01-31 Werkstuecke aus faserverstaerkter keramik

Country Status (3)

Country Link
DE (1) DE4102909A1 (da)
FR (1) FR2672239A1 (da)
GB (1) GB2252315B (da)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794403A3 (en) * 1996-03-06 1998-08-05 Solar Turbines Incorporated High pressure ceramic heat exchanger
DE19805868A1 (de) * 1998-02-13 1999-10-28 Daimler Chrysler Ag Verfahren zur Herstellung eines Faserverbundwerkstoffs
DE102006036624A1 (de) * 2006-08-03 2008-02-07 Schunk Kohlenstofftechnik Gmbh Werkstückträger sowie Verfahren zur Herstellung eines solchen
DE102007007410A1 (de) 2007-02-12 2008-08-14 Sgl Carbon Ag Verfahren zur Herstellung eines faserverstärkten carbidkeramischen Bauteils und ein carbidkeramisches Bauteil
DE102018206787A1 (de) * 2018-02-13 2019-08-14 Siemens Aktiengesellschaft Spaltrohr für eine elektrische Maschine aus einem Faserverbundwerkstoff, elektrische Maschine sowie Herstellungsverfahren
DE102018213032A1 (de) * 2018-08-03 2020-02-06 Siemens Aktiengesellschaft Verbundwerkstoff
US11280200B2 (en) 2018-07-06 2022-03-22 MTU Aero Engines AG Gas turbine blade

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8609558B2 (en) 2009-11-25 2013-12-17 United Technologies Corporation Tackifier composition
US20230145812A1 (en) * 2021-11-05 2023-05-11 Raytheon Technologies Corporation 3d woven space filler
US12017379B2 (en) 2021-12-20 2024-06-25 Rtx Corporation Ribbonized tows for optimized improved composite performance

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333830A1 (de) * 1972-07-03 1974-01-24 Ici Ltd Feuerfeste gegenstaende
GB1423240A (en) * 1972-03-28 1976-02-04 Ducommun Inc Fibre reinforced composite products
DE2648459B2 (de) * 1975-10-27 1979-03-22 The Research Institute For Iron, Steel And Other Metals Of The Tohoku University, Sendai (Japan) Verfahren zur Herstellung Von feuerfesten Werkstücken
EP0027251A1 (en) * 1979-10-16 1981-04-22 Fordath Limited Article comprising carbon fibres and method of producing the article
EP0049586A1 (en) * 1980-10-06 1982-04-14 Optical Coating Laboratory, Inc. Method and apparatus for forming thin film oxide layers using reactive evaporation techniques
DE3135714A1 (de) * 1981-09-09 1983-04-21 Shinagawa Refractories Co., Ltd., Tokyo Feuerfester isolierverbundblock
DE3224361A1 (de) * 1982-06-30 1984-01-05 Didier-Werke Ag, 6200 Wiesbaden Verbundbauteil, bestehend aus mindestens zwei teilen aus unterschiedlichen fasermaterialien
DE3400215A1 (de) * 1984-01-05 1985-07-18 Didier-Werke Ag, 6200 Wiesbaden Verfahren zur herstellung von sandwichartig aufgebauten verbundbauteilen aus unterschiedlichen fasermaterialien
DE3530459A1 (de) * 1984-08-27 1986-03-13 Fiber Materials, Inc., Biddeford, Me. Faserverbundkoerper, insbesondere als warmpressform, sowie herstellungsverfahren hierfuer
US4770930A (en) * 1986-11-24 1988-09-13 Martin Marietta Energy Systems, Inc. Multilayered thermal insulation formed of zirconia bonded layers of zirconia fibers and metal oxide fibers and method for making same
US4928645A (en) * 1989-09-14 1990-05-29 W.R. Grace & Co.-Conn. Ceramic composite valve for internal combustion engines and the like
EP0399548A2 (en) * 1989-05-25 1990-11-28 The B.F. Goodrich Company Carbon/carbon composite fasteners

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396663A (en) * 1979-06-11 1983-08-02 The B. F. Goodrich Company Carbon composite article and method of making same
US4318948A (en) * 1979-07-25 1982-03-09 Fordath Limited Article comprising carbon fibres and method of producing the article
US4917941A (en) * 1986-12-29 1990-04-17 General Electric Company Fiber- and filament-containing ceramic preform and composite
US4810442A (en) * 1986-12-29 1989-03-07 General Electric Company Method of forming fiber- and filament-containing ceramic preform and composite
FR2637586B1 (fr) * 1988-10-06 1991-01-11 Europ Propulsion Procede de fabrication de textures de renfort multidirectionnelles essentiellement en fibres ceramiques a base de compose du silicium pour la realisation de materiaux composites, ainsi que les textures et materiaux composites obtenus
GB2230259B (en) * 1989-04-14 1993-11-17 Gen Electric Fibre reinforced ceramic matrix composite member and method for making
GB2230258B (en) * 1989-04-14 1993-10-20 Gen Electric Consolidated member and method and preform for making
US4992318A (en) * 1989-10-26 1991-02-12 Corning Incorporated Laminated hybrid ceramic matrix composites
US5110652A (en) * 1989-12-04 1992-05-05 Corning Incorporated Shaped fiber-reinforced ceramic composite article
FR2659949B1 (fr) * 1990-03-26 1992-12-04 Europ Propulsion Procede de conformation d'une texture fibreuse de renfort pour la fabrication d'une piece en materiau composite.

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1423240A (en) * 1972-03-28 1976-02-04 Ducommun Inc Fibre reinforced composite products
DE2333830A1 (de) * 1972-07-03 1974-01-24 Ici Ltd Feuerfeste gegenstaende
DE2648459B2 (de) * 1975-10-27 1979-03-22 The Research Institute For Iron, Steel And Other Metals Of The Tohoku University, Sendai (Japan) Verfahren zur Herstellung Von feuerfesten Werkstücken
EP0027251A1 (en) * 1979-10-16 1981-04-22 Fordath Limited Article comprising carbon fibres and method of producing the article
EP0049586A1 (en) * 1980-10-06 1982-04-14 Optical Coating Laboratory, Inc. Method and apparatus for forming thin film oxide layers using reactive evaporation techniques
DE3135714A1 (de) * 1981-09-09 1983-04-21 Shinagawa Refractories Co., Ltd., Tokyo Feuerfester isolierverbundblock
DE3224361A1 (de) * 1982-06-30 1984-01-05 Didier-Werke Ag, 6200 Wiesbaden Verbundbauteil, bestehend aus mindestens zwei teilen aus unterschiedlichen fasermaterialien
DE3400215A1 (de) * 1984-01-05 1985-07-18 Didier-Werke Ag, 6200 Wiesbaden Verfahren zur herstellung von sandwichartig aufgebauten verbundbauteilen aus unterschiedlichen fasermaterialien
DE3530459A1 (de) * 1984-08-27 1986-03-13 Fiber Materials, Inc., Biddeford, Me. Faserverbundkoerper, insbesondere als warmpressform, sowie herstellungsverfahren hierfuer
US4770930A (en) * 1986-11-24 1988-09-13 Martin Marietta Energy Systems, Inc. Multilayered thermal insulation formed of zirconia bonded layers of zirconia fibers and metal oxide fibers and method for making same
EP0399548A2 (en) * 1989-05-25 1990-11-28 The B.F. Goodrich Company Carbon/carbon composite fasteners
US4928645A (en) * 1989-09-14 1990-05-29 W.R. Grace & Co.-Conn. Ceramic composite valve for internal combustion engines and the like

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z: sprechsaal 123, 1980, 4, S.353-355 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794403A3 (en) * 1996-03-06 1998-08-05 Solar Turbines Incorporated High pressure ceramic heat exchanger
US5954128A (en) * 1996-03-06 1999-09-21 Solar Turbines High pressure ceramic heat exchanger
DE19805868A1 (de) * 1998-02-13 1999-10-28 Daimler Chrysler Ag Verfahren zur Herstellung eines Faserverbundwerkstoffs
DE19805868C2 (de) * 1998-02-13 2002-09-12 Daimler Chrysler Ag Verfahren zur Herstellung eines Faserverbundwerkstoffs
DE102006036624A1 (de) * 2006-08-03 2008-02-07 Schunk Kohlenstofftechnik Gmbh Werkstückträger sowie Verfahren zur Herstellung eines solchen
DE102006036624B4 (de) * 2006-08-03 2009-08-20 Schunk Kohlenstofftechnik Gmbh Werkstückträger sowie Verfahren zur Herstellung eines solchen
DE102007007410A1 (de) 2007-02-12 2008-08-14 Sgl Carbon Ag Verfahren zur Herstellung eines faserverstärkten carbidkeramischen Bauteils und ein carbidkeramisches Bauteil
DE102018206787A1 (de) * 2018-02-13 2019-08-14 Siemens Aktiengesellschaft Spaltrohr für eine elektrische Maschine aus einem Faserverbundwerkstoff, elektrische Maschine sowie Herstellungsverfahren
US11280200B2 (en) 2018-07-06 2022-03-22 MTU Aero Engines AG Gas turbine blade
DE102018213032A1 (de) * 2018-08-03 2020-02-06 Siemens Aktiengesellschaft Verbundwerkstoff

Also Published As

Publication number Publication date
GB2252315A (en) 1992-08-05
GB9126343D0 (en) 1992-02-12
FR2672239A1 (fr) 1992-08-07
GB2252315B (en) 1994-11-16
FR2672239B1 (da) 1995-04-14

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8110 Request for examination paragraph 44
8131 Rejection