GB881831A - Improvements in or relating to ceramic dielectric materials - Google Patents

Improvements in or relating to ceramic dielectric materials

Info

Publication number
GB881831A
GB881831A GB3043357A GB3043357A GB881831A GB 881831 A GB881831 A GB 881831A GB 3043357 A GB3043357 A GB 3043357A GB 3043357 A GB3043357 A GB 3043357A GB 881831 A GB881831 A GB 881831A
Authority
GB
United Kingdom
Prior art keywords
ball milling
barium titanate
type
product
adding camphor
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
GB3043357A
Inventor
Percy Baxter
Norman Joseph Hellicar
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3043357A priority Critical patent/GB881831A/en
Publication of GB881831A publication Critical patent/GB881831A/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
    • C04B35/4684—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 containing lead compounds

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 type material contains 0,5 to 5 mol. per cent of nickel metatitanate, and is prepared by mixing the constituent oxides or their precursors, ball milling, adding camphor, pressing, prefixing at 1100 DEG to 1150 DEG C., crushing the product, again ball milling adding camphor and shaping, and then firing at 1300 DEG -1450 DEG C. The type is defined as consisting mainly of barium titanate and including in the composition one or more basic metallic oxides, e.g. calcium, strontium, lead, zinc and cadmium. Specifications 635,746, 745,961, 840,815 and 840,816 are referred to.ALSO:A barium titanate type dielectric material contains 0,5 to 5 mol per cent. of nickel metalitanate. The type is defined as consisting mainly of barium titanate and including in the compossition one or more basic metallic oxides e.g. calcium, strontium, lead, zinc and cadmium. The material is made by mixing the constituent oxides or their precursors, ball milling, adding camphor, pressing, prefixing at 1100 DEG -1150 DEG C,. crushing the product, again ball milling adding camphor and shaping, and then firing at 1300 DEG -1450 DEG C. The product is piezoelectric. Specifications 635,746, 745,961, 840,815 and 840,816 are referred to.
GB3043357A 1957-09-27 1957-09-27 Improvements in or relating to ceramic dielectric materials Expired GB881831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3043357A GB881831A (en) 1957-09-27 1957-09-27 Improvements in or relating to ceramic dielectric materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3043357A GB881831A (en) 1957-09-27 1957-09-27 Improvements in or relating to ceramic dielectric materials

Publications (1)

Publication Number Publication Date
GB881831A true GB881831A (en) 1961-11-08

Family

ID=10307605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3043357A Expired GB881831A (en) 1957-09-27 1957-09-27 Improvements in or relating to ceramic dielectric materials

Country Status (1)

Country Link
GB (1) GB881831A (en)

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