GB1414178A - Very porous conductive ceramic substances and their method of preparation - Google Patents

Very porous conductive ceramic substances and their method of preparation

Info

Publication number
GB1414178A
GB1414178A GB5925872A GB5925872A GB1414178A GB 1414178 A GB1414178 A GB 1414178A GB 5925872 A GB5925872 A GB 5925872A GB 5925872 A GB5925872 A GB 5925872A GB 1414178 A GB1414178 A GB 1414178A
Authority
GB
United Kingdom
Prior art keywords
sintered
diboride
metal
group iva
powder
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.)
Expired
Application number
GB5925872A
Inventor
H Carbonnel
L Hamon
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.)
Groupement Activities Atomiques Advancees
Original Assignee
Groupement Activities Atomiques Advancees
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 Groupement Activities Atomiques Advancees filed Critical Groupement Activities Atomiques Advancees
Publication of GB1414178A publication Critical patent/GB1414178A/en
Expired 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • 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
    • C04B35/58—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • 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
    • C04B35/58—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58071—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on titanium borides
    • 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
    • C04B35/58—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58078—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on zirconium or hafnium borides
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Ceramic Products (AREA)
  • Conductive Materials (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Resistance Heating (AREA)

Abstract

1414178 Sintered borides and silicides GROUPEMENT POUR LES ACTIVITES ATOMIQUES ET AVANLEES 21 Dec 1972 [22 Dec 1971] 59258/72 Heading C7D A sintered porous body is made from a mixture of (1) a fine non-sintered diboride powder of a Group IVA, VA or VIA metal with e.g. 20-80 per cent weight of a crushed diboride powder of a Group IVA, VA or VIA metal which has been hot pressed e.g. at 1000-2000‹C and (2) 1-6 per cent weight of a fluoride of a group 1A or 1B metal. The mixture is inbrated in a die e.g. graphite and sintered for at least 1 hour at 1000- 1500‹C in an inert gas such as argon. Up to 25% of a disilicide of a Group IVA, VA or VIA metal may be added to the diboride powder before hot pressing non-sintered disilicide powder may be added to the non-sintered diboride and the fluoride flux used is preferably Li F. The sintered body may be used in liquid metal pumps, electrodes for electrolysis and for resistance heating elements.
GB5925872A 1971-12-22 1972-12-21 Very porous conductive ceramic substances and their method of preparation Expired GB1414178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7146212A FR2186960A5 (en) 1971-12-22 1971-12-22

Publications (1)

Publication Number Publication Date
GB1414178A true GB1414178A (en) 1975-11-19

Family

ID=9087904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5925872A Expired GB1414178A (en) 1971-12-22 1972-12-21 Very porous conductive ceramic substances and their method of preparation

Country Status (11)

Country Link
JP (3) JPS5549032B2 (en)
AU (1) AU466721B2 (en)
CA (1) CA1023139A (en)
CH (1) CH574374A5 (en)
DE (1) DE2261523A1 (en)
FR (1) FR2186960A5 (en)
GB (1) GB1414178A (en)
IT (1) IT972582B (en)
NO (1) NO133193C (en)
SE (1) SE375754B (en)
SU (2) SU571180A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262437B1 (en) * 1974-02-21 1983-06-24 Activite Atom Avance
JPS59184611U (en) * 1983-05-27 1984-12-08 日立工機株式会社 Electric cutter dust suction device
JPS6342801A (en) * 1986-08-08 1988-02-24 日立工機株式会社 Portable dust-collecting circular saw

Also Published As

Publication number Publication date
SE375754B (en) 1975-04-28
NO133193C (en) 1976-03-24
FR2186960A5 (en) 1974-01-11
JPS5542583B2 (en) 1980-10-31
SU571180A3 (en) 1977-08-30
SU674664A3 (en) 1979-07-15
JPS4870894A (en) 1973-09-26
CH574374A5 (en) 1976-04-15
AU5030172A (en) 1974-06-20
JPS5549032B2 (en) 1980-12-09
JPS4870904A (en) 1973-09-26
NO133193B (en) 1975-12-15
AU466721B2 (en) 1974-06-20
JPS4870905A (en) 1973-09-26
DE2261523A1 (en) 1973-06-28
IT972582B (en) 1974-05-31
CA1023139A (en) 1977-12-27

Similar Documents

Publication Publication Date Title
GB1456765A (en) Abrasive compacts
GB1328961A (en) Dense carbide composite bodies and method of making same
ES383779A1 (en) Sintered hard alloy and method of making
GB1485896A (en) Fibre/metal composite materials
GB1444459A (en) Electrical contact materials
GB1434136A (en) Sintered refractory material
GB1466328A (en) Sintered metallic composite material
GB1489249A (en) Infiltrated composite metal suitable for use as a contact material for a vacuum switch and a process for its manufacture
GB1406542A (en) Electrically coneuctive composition and methods of preparation thereof
GB1428905A (en) Metallizing compositions
GB1414178A (en) Very porous conductive ceramic substances and their method of preparation
ES8306464A1 (en) Sinterable composition based on titanium diboride and application thereof for producing sintered articles.
GB1137933A (en) Dispersion strengthened nickel-chromium and nickel-chromium base alloy compositions
GB1247356A (en) Improvements in and relating to metallic composite materials
GB1130324A (en) Compositions of glass and metal
GB1279293A (en) Improvements in or relating to powdered metal composites and method of making the same
GB1438602A (en) Method of preparing ceramic substances by sintering
GB1130995A (en) Improvements in and relating to powder metallurgy
GB1393579A (en) Method of producing high density silicon nitride
GB1304291A (en)
GB980622A (en) Soldering materials
JPS5426205A (en) Preparation of superhard alloy containing molybdenum
GB1322697A (en) Metal ceramic material for making electric contacts and method of producing same
JPS54108150A (en) Combination of slide parts material
GB1241976A (en) Process for preparing sintered pellets of ceramic materials to be used as nuclear fuels and products obtained by the process

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee