GB2240335B - Ferroelectric materials - Google Patents

Ferroelectric materials

Info

Publication number
GB2240335B
GB2240335B GB8926186A GB8926186A GB2240335B GB 2240335 B GB2240335 B GB 2240335B GB 8926186 A GB8926186 A GB 8926186A GB 8926186 A GB8926186 A GB 8926186A GB 2240335 B GB2240335 B GB 2240335B
Authority
GB
United Kingdom
Prior art keywords
ferroelectric materials
ferroelectric
materials
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 - Lifetime
Application number
GB8926186A
Other versions
GB2240335A (en
GB8926186D0 (en
Inventor
Nicholas Martyn Shorrocks
Roger William Whatmore
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
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Plessey Co Ltd
Marconi 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 GEC Marconi Ltd, Plessey Co Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Publication of GB8926186D0 publication Critical patent/GB8926186D0/en
Publication of GB2240335A publication Critical patent/GB2240335A/en
Application granted granted Critical
Publication of GB2240335B publication Critical patent/GB2240335B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C04B35/495—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 vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
    • C04B35/497—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 vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates based on solid solutions with lead oxides
    • 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
    • C04B35/645—Pressure sintering
    • 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
    • H10N15/15—Thermoelectric active materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Insulating Bodies (AREA)
  • Inorganic Insulating Materials (AREA)
  • Insulated Conductors (AREA)
GB8926186A 1988-11-30 1989-11-20 Ferroelectric materials Expired - Lifetime GB2240335B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8827934 1988-11-30

Publications (3)

Publication Number Publication Date
GB8926186D0 GB8926186D0 (en) 1991-04-03
GB2240335A GB2240335A (en) 1991-07-31
GB2240335B true GB2240335B (en) 1992-09-02

Family

ID=10647702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8926186A Expired - Lifetime GB2240335B (en) 1988-11-30 1989-11-20 Ferroelectric materials

Country Status (4)

Country Link
DE (1) DE3943507A1 (en)
FR (1) FR2666083A1 (en)
GB (1) GB2240335B (en)
IT (1) IT1243030B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314651A (en) * 1992-05-29 1994-05-24 Texas Instruments Incorporated Fine-grain pyroelectric detector material and method
US5566046A (en) * 1994-02-18 1996-10-15 Texas Instruments Incorporated Microelectronic device with capacitors having fine-grain dielectric material
CN112062565B (en) * 2020-09-17 2022-05-03 广西大学 Preparation method of PSINT-based high-entropy ceramic electrocaloric refrigeration material

Also Published As

Publication number Publication date
FR2666083A1 (en) 1992-02-28
IT9021542A0 (en) 1990-09-24
IT9021542A1 (en) 1992-03-24
IT1243030B (en) 1994-05-23
DE3943507A1 (en) 1991-12-05
GB2240335A (en) 1991-07-31
GB8926186D0 (en) 1991-04-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931120