[go: up one dir, main page]

WO2006032559A1 - Procede pour produire une ceramique precurseur - Google Patents

Procede pour produire une ceramique precurseur Download PDF

Info

Publication number
WO2006032559A1
WO2006032559A1 PCT/EP2005/053570 EP2005053570W WO2006032559A1 WO 2006032559 A1 WO2006032559 A1 WO 2006032559A1 EP 2005053570 W EP2005053570 W EP 2005053570W WO 2006032559 A1 WO2006032559 A1 WO 2006032559A1
Authority
WO
WIPO (PCT)
Prior art keywords
precursor
pyrolysis
contact wires
ceramic
liquid
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
PCT/EP2005/053570
Other languages
German (de)
English (en)
Inventor
Gert Lindemann
Alexander Klonczynski
Martin KÖHNE
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2006032559A1 publication Critical patent/WO2006032559A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • C04B35/5603—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 with a well-defined oxygen content, e.g. oxycarbides
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62625—Wet mixtures
    • C04B35/6264—Mixing media, e.g. organic solvents
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/421—Boron
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/441—Alkoxides, e.g. methoxide, tert-butoxide
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
    • C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • C04B2235/662—Annealing after sintering
    • C04B2235/663—Oxidative annealing
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase

Definitions

  • the invention generally relates to a method for producing a precursor ceramic according to the preamble of the independent claim. Specifically, the invention relates to the preparation of such precursor ceramics having contact wires. The invention also relates to a precursor ceramic produced by means of the method.
  • amorphous SiOC ceramics are obtained by pyrolysis of elemental organic precursors.
  • Advantages of the precursor thermolysis process compared to the conventional production methods for ceramics (sintering) are the significantly lower process temperatures and the simple processability and moldability of polysiloxane resins.
  • the development of the ceramic glow plug aims at a further reduction of the diameter of the ceramic glow plug and the integration of other functions (eg pressure measurement in the combustion chamber).
  • the electrical contact on the surface of the ceramic glow plug is considerably more complex.
  • An inexpensive variant of the contacting is to contact wires in the plastic molding of the glow plug precursor so that it sits part of the contact wire in the glow plug and the other part protrudes as a free end.
  • the integration of a pressure sensor in the ceramic glow plug requires two contact wires, through which the measurement signal can be tapped from the pressure sensor.
  • a serious disadvantage of direct contacting with encapsulation of the contact wires in the shaping is that due to the pyrolysis necessary for the production of the ceramic glow pencil in a reducing atmosphere and the subsequent heat treatment in an oxidizing atmosphere (both processes take place at temperatures above 1200 ° C.) the demands on the chemical resistance of the contact wires are extremely high. Suitable wires are therefore disproportionately expensive.
  • the aim of the present invention is therefore to avoid the disadvantages of the prior art and to protect the contact wires in a simple manner against oxidation. It should be noted that the present invention is not only applicable to ceramic glow plugs, but can be made using the inventive method any heater.
  • the inventive method for the production of precursor ceramics by pyrolysis of oxygen-containing organoelement precursor polymer moldings has the advantage over the prior art that in a simple manner protect the contact wires on a molded part of precursor ceramic from oxidation during the heat treatment to let.
  • the core of the invention is the use of preparations of precursors, such as e.g. organosilicon precursors such as polysilsesquioxanes, polysiloxanes, polycarbosilanes and polysilanes or the use of organoaluminum precursors such as aluminoxanes as dip coating for the coating of the free ends of contact wires.
  • precursors such as e.g. organosilicon precursors such as polysilsesquioxanes, polysiloxanes, polycarbosilanes and polysilanes or the use of organoaluminum precursors such as aluminoxanes as dip coating for the coating of the free ends of contact wires.
  • organosilicon precursors such as polysilsesquioxanes, polysiloxanes, polycarbosilanes and polysilanes
  • organoaluminum precursors such as aluminoxanes
  • the preparation may further contain, in particular for the organosilicon precursors, additives, e.g. Boron, cerium, bismuth, sodium, etc., for the adjustment of certain properties, e.g. Viscosity, layer thickness, coefficient of thermal expansion, wetting of the contact wire by the oxidation protection layer, the ceramic resulting from the precursor.
  • additives e.g. Boron, cerium, bismuth, sodium, etc.
  • certain properties e.g. Viscosity, layer thickness, coefficient of thermal expansion, wetting of the contact wire by the oxidation protection layer, the ceramic resulting from the precursor.
  • the adjustment of the rheological properties e.g., thixotropy
  • fumed silica and / or organosilicon precursors in combination with organoaluminum precursors (aluminoxanes) a film can be produced which contains mullite after the heat treatment.
  • the free ends of the contact wires are dipped before the pyrolysis of the molding in a bath of a preparation of a precursor.
  • the adhering film of the preparation transforms into a ceramic during pyrolysis.
  • This ceramic film is oxidized on its surface during the subsequent heat treatment in an oxygen-containing atmosphere, in the case of the organosilicon precursors to SiO 2 , in the case of the organoaluminum precursors to Al 2 O 3 .
  • SiO 2 and Al 2 O 3 are strong diffusion barriers for oxygen, so that this SiO 2 or Al 2 O 3 layer on the free end of the Contact wire protects this during the heat treatment from oxidation by oxygen. By grinding only one contact point, the wire continues to be protected against corrosion.
  • Suitable precursors are the following polymers: polysiloxanes, polysilsesquioxanes, polycarbosilanes, polysilanes and aluminoxanes.
  • additives for adjusting the melt viscosity of the film in the case of organosilicon precursors u.a. the following elements and their organic and inorganic compounds are used: boron, bismuth, barium, sodium.
  • additives are preferably added to the preparation as nanopowder of the element or of the oxide or in liquid organic element form (also in dissolved elemental organic form).
  • liquid organoelemental forms are:
  • Polymethylsilsesquioxane 30.0% by mass of xylene or acetone as solvent
  • the free ends of the contact wires that is, the part of the contact wires, which protrudes from the molded part, which was prepared from the precursor of the ceramic glow pencil by plastic molding, immersed in the liquid.
  • the subsequent pyrolysis is carried out under the following conditions: heating at 200 K / min until 1300 ° C are reached; 2h hold at 1300 ° C; Cool at 300 K / min until room temperature is reached.
  • the electrically insulating oxidation protection layer must be removed from the contact wire end. This can be done with two different methods:
  • the wire ends are pressed flat by means of a roller or press. Due to the deformation of the contact wire, the oxidation protection layer bursts in the deformed region of the wire.
  • the oxidation protection layer is mechanically removed by scraping or grinding.
  • the thickness of the SiOC-SiO 2 -FiImS is depending on the order quantity of the precursor between 1 and 10 microns.
  • An unprotected molybdenum wire is completely oxidized to volatile oxides after heat treatment at 1300 0 C in air.
  • a molybdenum wire treated with the method according to the invention is still intact after the same heat treatment.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

La présente invention concerne un procédé pour produire une céramique précurseur, par pyrolyse de pièces moulées en polymère précurseur élémentaire organique contenant de l'oxygène, les pièces moulées en polymère précurseur présentant des fils de contact dont une extrémité dépasse librement de la pièce moulée. L'extrémité des fils de contact, qui dépasse librement de la pièce moulée, est recouverte, avant pyrolyse, d'un liquide qui contient un précurseur qui est converti en céramique au cours de la pyrolyse.
PCT/EP2005/053570 2004-09-22 2005-07-22 Procede pour produire une ceramique precurseur Ceased WO2006032559A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004045814.6 2004-09-22
DE200410045814 DE102004045814A1 (de) 2004-09-22 2004-09-22 Verfahren zur Herstellung einer Precursorkeramik

Publications (1)

Publication Number Publication Date
WO2006032559A1 true WO2006032559A1 (fr) 2006-03-30

Family

ID=34981672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/053570 Ceased WO2006032559A1 (fr) 2004-09-22 2005-07-22 Procede pour produire une ceramique precurseur

Country Status (2)

Country Link
DE (1) DE102004045814A1 (fr)
WO (1) WO2006032559A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058823A1 (fr) * 2007-11-06 2009-05-13 Honeywell International Inc. Fils isolés flexibles pour une utilisation à températures élevées et procédés de fabrication

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412428A1 (fr) * 1989-08-07 1991-02-13 Peter Prof. Dr. Greil Corps composites céramiques et procédé pour leur fabrication
EP0848209A2 (fr) * 1996-12-11 1998-06-17 Isuzu Ceramics Research Institute Co., Ltd. Elément chauffant céramique et son procédé de fabrication
US20030085214A1 (en) * 2001-11-07 2003-05-08 University Of Colorado At Boulder Micro-glow plug and method of making same field of the invention
EP1489059A2 (fr) * 2003-06-12 2004-12-22 Robert Bosch Gmbh Matériau céramique composite et procédé de sa fabrication
DE10326565A1 (de) * 2003-06-12 2004-12-30 Robert Bosch Gmbh Verfahren zur Herstellung eines isolierenden Keramik-Verbund-Werkstoffes und isolierender Keramik-Verbund-Werkstoff
US20050153825A1 (en) * 2002-01-30 2005-07-14 Ralf Riedel Ceramic composite material, method for the production thereof, and pencil-type glow plug containing such a composite material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412428A1 (fr) * 1989-08-07 1991-02-13 Peter Prof. Dr. Greil Corps composites céramiques et procédé pour leur fabrication
EP0848209A2 (fr) * 1996-12-11 1998-06-17 Isuzu Ceramics Research Institute Co., Ltd. Elément chauffant céramique et son procédé de fabrication
US20030085214A1 (en) * 2001-11-07 2003-05-08 University Of Colorado At Boulder Micro-glow plug and method of making same field of the invention
US20050153825A1 (en) * 2002-01-30 2005-07-14 Ralf Riedel Ceramic composite material, method for the production thereof, and pencil-type glow plug containing such a composite material
EP1489059A2 (fr) * 2003-06-12 2004-12-22 Robert Bosch Gmbh Matériau céramique composite et procédé de sa fabrication
DE10326565A1 (de) * 2003-06-12 2004-12-30 Robert Bosch Gmbh Verfahren zur Herstellung eines isolierenden Keramik-Verbund-Werkstoffes und isolierender Keramik-Verbund-Werkstoff

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058823A1 (fr) * 2007-11-06 2009-05-13 Honeywell International Inc. Fils isolés flexibles pour une utilisation à températures élevées et procédés de fabrication
US7795538B2 (en) 2007-11-06 2010-09-14 Honeywell International Inc. Flexible insulated wires for use in high temperatures and methods of manufacturing

Also Published As

Publication number Publication date
DE102004045814A1 (de) 2006-03-23

Similar Documents

Publication Publication Date Title
DE3005745C2 (fr)
DE3008084C2 (fr)
DE69232607T2 (de) Verfahren zur Beschichtung eines Substrates mit einem Kiesel-Vorprodukt
DE4113059C2 (de) Verfahren zur Herstellung von Schwarzglas
DE3687998T2 (de) Wärmehärtbare Harzzusammensetzung.
DE102015106999A1 (de) Verfahren und Zusammensetzungen zur Herstellung von keramischen Gegenständen
DE19735271C2 (de) Weichmagnetischer, formbarer Verbundwerkstoff und Verfahren zu dessen Herstellung
DE4016569A1 (de) Silizium-oxy-carbid-glas und verfahren zu dessen herstellung
DE4129600C2 (de) Verfahren zum impraegnieren von poroesen kohlenstoffkoerpern zum schutz gegen oxidation und verwendung dieser kohlenstoffkoerper
DE112017000390T5 (de) Chip-Bindemittel vom Typ Kondensationsreaktion, LED-Licht emittierende Vorrichtung und Verfahren zu deren Herstellung
DE69930908T2 (de) Verfahren zur Herstellung einer Sinterbeschichtung unter Verwendung einer Organopolysiloxanzusammensetzung
DE1810157A1 (de) Vinylgruppen enthaltende Organosiliciumharze
WO2006032559A1 (fr) Procede pour produire une ceramique precurseur
EP0298470A2 (fr) Procédé de fabrication de corps à base d'oxycarbure de silicium
EP1468976A1 (fr) Couche de protection sur un substrat contenant du carbon et procédé pour sa préparation
WO2023046995A1 (fr) Composition composite formant du (poly-) silsesquioxane
DE102022205830A1 (de) (Poly-)Silsesquioxan ausbildende Kompositzusammensetzung
EP3676233B1 (fr) Procédé de production d'un matériau composite, le matériau composite produit et son utilisation
EP1641728B1 (fr) Procede pour produire un materiau composite ceramique isolant et materiau composite ceramique isolant
DE69501455T2 (de) Verfahren zur Herstellung von Silizium-Oxy-Karbid
DE102004043873A1 (de) Keramischer Widerstand
DE102005028250A1 (de) Leiterpaste zum Herstellen einer elektrischen Leiterbahn und Herstellungsverfahren der elektrischen Leiterbahn unter Verwendung der Leiterpaste
EP0991609B1 (fr) Procede de faconnage pour ceramiques et metaux dans systemes aqueux par variation de la temperature
WO2003064346A1 (fr) Materiau composite ceramique, procede de production de ce materiau et bougie crayon de prechauffage comprenant ce materiau
DE10326567A1 (de) Verfahren zur Herstellung eines Keramik-Verbund-Werkstoffes und Keramik-Verbund-Werkstoff

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase