GB692620A - An improved manufacture of thin sheets or plates of heat-treated material suitable for the dielectrics of capacitors and for other purposes - Google Patents

An improved manufacture of thin sheets or plates of heat-treated material suitable for the dielectrics of capacitors and for other purposes

Info

Publication number
GB692620A
GB692620A GB592350A GB592350A GB692620A GB 692620 A GB692620 A GB 692620A GB 592350 A GB592350 A GB 592350A GB 592350 A GB592350 A GB 592350A GB 692620 A GB692620 A GB 692620A
Authority
GB
United Kingdom
Prior art keywords
cellulose
powder
per cent
sheet
dielectrics
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
GB592350A
Inventor
Herbert Walker
Tzn En Shen
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.)
BRITISH DIELECTRIC RES Ltd
Original Assignee
BRITISH DIELECTRIC RES Ltd
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 BRITISH DIELECTRIC RES Ltd filed Critical BRITISH DIELECTRIC RES Ltd
Priority to GB592350A priority Critical patent/GB692620A/en
Publication of GB692620A publication Critical patent/GB692620A/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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • 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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • 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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
    • C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
    • 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
    • C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives 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
    • 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

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)
  • Inorganic Insulating Materials (AREA)

Abstract

A thin cellulose paper sheet is loaded with a high proportion of powdered titania, magnesium or barium titanate, heated first under oxidizing conditions to burn off the cellulose, and then at a higher temperature to sinter the powder and form a sheet.ALSO:A thin cellulose paper sheet is loaded with a high proportion of a powder which can be softened and sintered at a temperature above that at which cellulose is destroyed and is heated first under oxidizing condition to burn off the cellulose and then at a higher temperature to sinter the powder and form the sheet. Temporary binders e.g. starch, dextrin or gelatine may be added to the cellulose pulp, and fluxes may be added to aid sintering. Specified powders are magnesium and barium titanate, titania, glass (alone or mixed with dielectric materials) powdered metals, silicon carbide and a mixture of carbon, silica and/or silicates p from which resistors are obtained. Preferably the powder exceeds 90 per cent. and in examples is 98 per cent. cellulose 1 and bentonite (as a plasticizer) 1 per cent.
GB592350A 1950-03-09 1950-03-09 An improved manufacture of thin sheets or plates of heat-treated material suitable for the dielectrics of capacitors and for other purposes Expired GB692620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB592350A GB692620A (en) 1950-03-09 1950-03-09 An improved manufacture of thin sheets or plates of heat-treated material suitable for the dielectrics of capacitors and for other purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB592350A GB692620A (en) 1950-03-09 1950-03-09 An improved manufacture of thin sheets or plates of heat-treated material suitable for the dielectrics of capacitors and for other purposes

Publications (1)

Publication Number Publication Date
GB692620A true GB692620A (en) 1953-06-10

Family

ID=9805168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB592350A Expired GB692620A (en) 1950-03-09 1950-03-09 An improved manufacture of thin sheets or plates of heat-treated material suitable for the dielectrics of capacitors and for other purposes

Country Status (1)

Country Link
GB (1) GB692620A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163528A (en) * 1963-02-01 1964-12-29 Gen Electric Method for producing copper articles
CN109678521A (en) * 2019-01-29 2019-04-26 潍坊工商职业学院 A kind of preparation method that silicon carbide is ceramic layered

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163528A (en) * 1963-02-01 1964-12-29 Gen Electric Method for producing copper articles
CN109678521A (en) * 2019-01-29 2019-04-26 潍坊工商职业学院 A kind of preparation method that silicon carbide is ceramic layered

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