GB1064325A - Improvements in or relating to dielectric compositions - Google Patents

Improvements in or relating to dielectric compositions

Info

Publication number
GB1064325A
GB1064325A GB3597862A GB3597862A GB1064325A GB 1064325 A GB1064325 A GB 1064325A GB 3597862 A GB3597862 A GB 3597862A GB 3597862 A GB3597862 A GB 3597862A GB 1064325 A GB1064325 A GB 1064325A
Authority
GB
United Kingdom
Prior art keywords
oxide
relating
barium titanate
dielectric compositions
manganous
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
GB3597862A
Inventor
John Martin Herbert
Alan Gray Cockbain
William Donald Weston
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 UK Ltd
Original Assignee
Plessey UK 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 UK Ltd filed Critical Plessey UK Ltd
Priority to GB3597862A priority Critical patent/GB1064325A/en
Publication of GB1064325A publication Critical patent/GB1064325A/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

Landscapes

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

Abstract

A barium titanate ceramic dielectric composition has an atomic ratio of Ba: Ti within the ranges 0.98:1-0.9975: 1 or 1.001: 1-1.11: 1 and contains a significant quantity, that is a quantity of the same order as used in Specification 809,439, of manganous oxide. It is prepared by firing a comminated mixture of the oxides or oxide precursors in a reducing atmosphere at 1250-1350 DEG C. The proportion of manganous oxide may be 0.1-0.167 or 0.5-2.0 gm. molecules per gm. molecule barium titanate. In an example magnesium oxide is also present in the fired ceramic.
GB3597862A 1962-09-21 1962-09-21 Improvements in or relating to dielectric compositions Expired GB1064325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3597862A GB1064325A (en) 1962-09-21 1962-09-21 Improvements in or relating to dielectric compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3597862A GB1064325A (en) 1962-09-21 1962-09-21 Improvements in or relating to dielectric compositions

Publications (1)

Publication Number Publication Date
GB1064325A true GB1064325A (en) 1967-04-05

Family

ID=10383605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3597862A Expired GB1064325A (en) 1962-09-21 1962-09-21 Improvements in or relating to dielectric compositions

Country Status (1)

Country Link
GB (1) GB1064325A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132326A1 (en) * 1971-04-02 1972-11-17 Sprague Electric Co
US3987347A (en) * 1975-05-29 1976-10-19 Sprague Electric Company Temperature stable monolithic ceramic capacitor with base metal electrodes
FR2331533A1 (en) * 1975-11-11 1977-06-10 Itt MONOLITHIC CERAMIC CAPACITORS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132326A1 (en) * 1971-04-02 1972-11-17 Sprague Electric Co
US3987347A (en) * 1975-05-29 1976-10-19 Sprague Electric Company Temperature stable monolithic ceramic capacitor with base metal electrodes
FR2331533A1 (en) * 1975-11-11 1977-06-10 Itt MONOLITHIC CERAMIC CAPACITORS

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