DK0470622T3 - Process for making moldings of silicon infiltrated silicon carbide - Google Patents

Process for making moldings of silicon infiltrated silicon carbide

Info

Publication number
DK0470622T3
DK0470622T3 DK91113344.5T DK91113344T DK0470622T3 DK 0470622 T3 DK0470622 T3 DK 0470622T3 DK 91113344 T DK91113344 T DK 91113344T DK 0470622 T3 DK0470622 T3 DK 0470622T3
Authority
DK
Denmark
Prior art keywords
silicon
sisic
support
silicon carbide
blank
Prior art date
Application number
DK91113344.5T
Other languages
Danish (da)
Inventor
Werner Benker
Juergen Schmidt
Original Assignee
Hoechst Ceram Tec 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 Hoechst Ceram Tec Ag filed Critical Hoechst Ceram Tec Ag
Application granted granted Critical
Publication of DK0470622T3 publication Critical patent/DK0470622T3/en

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
    • C04B35/573—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 by reaction sintering or recrystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Peptides Or Proteins (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Silicon Polymers (AREA)

Abstract

For the production of mouldings of silicon-infiltrated silicon carbide, in particular of pipes, a mixture of silicon carbide powder, organic binder and optionally carbon is moulded to give a cylindrical elongated green compact, the binder of the green compact is removed in a nonoxidising atmosphere by carbonisation at about 1000 DEG C and the porous blank obtained is siliconised by the action of liquid silicon at temperatures of at least 1400 DEG C. During the siliconisation, the blank rests on a porous SiSiC support which is in contact with liquid silicon. The SiSiC support has a straight channel with an angular cross-section and recesses in which the cylindrical blank to be siliconised is placed, and the SiSiC support has downward-projecting side walls whose lower surface is in contact with the liquid silicon. <IMAGE>
DK91113344.5T 1990-08-09 1991-08-08 Process for making moldings of silicon infiltrated silicon carbide DK0470622T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4025235A DE4025235C1 (en) 1990-08-09 1990-08-09

Publications (1)

Publication Number Publication Date
DK0470622T3 true DK0470622T3 (en) 1994-03-14

Family

ID=6411922

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91113344.5T DK0470622T3 (en) 1990-08-09 1991-08-08 Process for making moldings of silicon infiltrated silicon carbide

Country Status (9)

Country Link
EP (1) EP0470622B1 (en)
JP (1) JPH06211585A (en)
AT (1) ATE95808T1 (en)
DE (2) DE4025235C1 (en)
DK (1) DK0470622T3 (en)
ES (1) ES2046832T3 (en)
FI (1) FI913757A (en)
IE (1) IE912809A1 (en)
NO (1) NO913097L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834540A1 (en) * 1998-07-31 2000-02-10 Daimler Chrysler Ag Process for melt infiltration of porous bodies

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1180918A (en) * 1966-06-10 1970-02-11 Atomic Energy Authority Uk Improvements in or relating to the Manufacture of Dense Bodies of Silicon Carbide.
CA1092793A (en) * 1978-07-03 1981-01-06 Wendel G. Brown Method for manufacturing silicone carbide bodies
DE3367764D1 (en) * 1983-07-29 1987-01-08 Hoechst Ceram Tec Ag Method of making silicon-infiltrated reaction-bonded silicom carbide bodies
DE3719606A1 (en) * 1987-06-12 1988-12-22 Hoechst Ceram Tec Ag METHOD FOR SILICOLATING POROUS SHAPED BODIES MADE OF SILICON CARBIDE OR SILICON CARBIDE / CARBON

Also Published As

Publication number Publication date
DE59100483D1 (en) 1993-11-18
EP0470622A3 (en) 1992-08-19
IE912809A1 (en) 1992-02-12
EP0470622B1 (en) 1993-10-13
EP0470622A2 (en) 1992-02-12
FI913757A (en) 1992-02-10
NO913097L (en) 1992-02-10
FI913757A0 (en) 1991-08-07
ES2046832T3 (en) 1994-02-01
ATE95808T1 (en) 1993-10-15
DE4025235C1 (en) 1991-12-05
JPH06211585A (en) 1994-08-02
NO913097D0 (en) 1991-08-08

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