GB1462972A - Pyroelectric ceramics - Google Patents

Pyroelectric ceramics

Info

Publication number
GB1462972A
GB1462972A GB209274A GB209274A GB1462972A GB 1462972 A GB1462972 A GB 1462972A GB 209274 A GB209274 A GB 209274A GB 209274 A GB209274 A GB 209274A GB 1462972 A GB1462972 A GB 1462972A
Authority
GB
United Kingdom
Prior art keywords
point
composition
pyroelectric
jan
pyroelectric ceramics
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
GB209274A
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB209274A priority Critical patent/GB1462972A/en
Publication of GB1462972A publication Critical patent/GB1462972A/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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/49—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 zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates
    • C04B35/491—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 zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates based on lead zirconates and lead titanates, e.g. PZT
    • C04B35/493—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 zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates based on lead zirconates and lead titanates, e.g. PZT containing also other lead compounds
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
    • H10N15/10—Thermoelectric devices using thermal change of the dielectric constant, e.g. working above and below the Curie point

Landscapes

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

Abstract

1462972 Pyroelectric ceramics DEFENCE SECRETARY OF STATE FOR 14 Jan 1975 [16 Jan 1974] 02092/74 Heading C1J A pyroelectric ceramic comprises a composition consisting of PbTiO 3 , PbZrO 3 and Pb(Ni 1/5 Fe 1/5 Nb 3/5 )O 3 in solid solution, the composition of the component being bounded by a quadrilateral ABCD on the ternary diagram of the Figure,the mol. percentages of the respective components of the composition being 0, 40 and 60 at point A, 20, 20 and 60 at point B, 30, 20 and 50 at point C and 0, 65, 35 at point D. The ceramic may further comprise up to 2-5 wt. per cent manganese oxide (MnO). Specification 1,385,821 and U.S.A. Specification 3,637,506 are referred to.
GB209274A 1974-01-16 1974-01-16 Pyroelectric ceramics Expired GB1462972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB209274A GB1462972A (en) 1974-01-16 1974-01-16 Pyroelectric ceramics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB209274A GB1462972A (en) 1974-01-16 1974-01-16 Pyroelectric ceramics

Publications (1)

Publication Number Publication Date
GB1462972A true GB1462972A (en) 1977-01-26

Family

ID=9733455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB209274A Expired GB1462972A (en) 1974-01-16 1974-01-16 Pyroelectric ceramics

Country Status (1)

Country Link
GB (1) GB1462972A (en)

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee