GB809440A - Improvements in or relating to dielectrics - Google Patents

Improvements in or relating to dielectrics

Info

Publication number
GB809440A
GB809440A GB1210955A GB1210955A GB809440A GB 809440 A GB809440 A GB 809440A GB 1210955 A GB1210955 A GB 1210955A GB 1210955 A GB1210955 A GB 1210955A GB 809440 A GB809440 A GB 809440A
Authority
GB
United Kingdom
Prior art keywords
conductor
reducing atmosphere
ingredient
barium titanate
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
GB1210955A
Inventor
John Martin Herbert
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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB1210955A priority Critical patent/GB809440A/en
Publication of GB809440A publication Critical patent/GB809440A/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors

Landscapes

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

Abstract

A conductor, or a substance convertible to a conductor on fixing in a reducing atmosphere, is mixed with the modified barium titanate (or its precursors) of Specification 809,439 and the mixture fixed in a reducing atmosphere. The conductor ingredient may also be barium titanate, but in such event it must be free from the oxides of manganese or magnesium; have a particle size greater than 5 microns; and have been calcined at above 1200 DEG C. Part of the barium can be replaced by strontium. In examples, iron and ferric oxide are also used as the conductor ingredient.
GB1210955A 1955-04-27 1955-04-27 Improvements in or relating to dielectrics Expired GB809440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1210955A GB809440A (en) 1955-04-27 1955-04-27 Improvements in or relating to dielectrics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1210955A GB809440A (en) 1955-04-27 1955-04-27 Improvements in or relating to dielectrics

Publications (1)

Publication Number Publication Date
GB809440A true GB809440A (en) 1959-02-25

Family

ID=9998548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1210955A Expired GB809440A (en) 1955-04-27 1955-04-27 Improvements in or relating to dielectrics

Country Status (1)

Country Link
GB (1) GB809440A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002008147A1 (en) * 2000-07-26 2002-01-31 Koninklijke Philips Electronics N.V. Dielectric ceramic barium titanate composition and electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002008147A1 (en) * 2000-07-26 2002-01-31 Koninklijke Philips Electronics N.V. Dielectric ceramic barium titanate composition and electronic device

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