GB1516408A - Ferroelectric ceramic materials - Google Patents
Ferroelectric ceramic materialsInfo
- Publication number
- GB1516408A GB1516408A GB2462375A GB2462375A GB1516408A GB 1516408 A GB1516408 A GB 1516408A GB 2462375 A GB2462375 A GB 2462375A GB 2462375 A GB2462375 A GB 2462375A GB 1516408 A GB1516408 A GB 1516408A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferroelectric ceramic
- ceramic materials
- optical
- optical material
- birefringence
- 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
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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/0009—Materials therefor
- G02F1/0018—Electro-optical materials
- G02F1/0027—Ferro-electric materials
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Nonlinear Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Conductive Materials (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
1516408 Optical material MULLARD Ltd 9 June 1975 24623/75 Heading C1J An optical material having an electrically variable birefringence value and a maximum remanent birefringence between 10 and 60‹C comprises a ferroelectric ceramic of the composition Pb 1 -x La x (Zr y Ti z ) 1 -N/4 O 3 where x is from 0À075 to 0À08 and y/z is greater than 70/30 but less than 74/26. An optical device including a body of the material may be used in a display, filter, imaging system or a memory device.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2462375A GB1516408A (en) | 1975-06-09 | 1975-06-09 | Ferroelectric ceramic materials |
CA253,956A CA1090556A (en) | 1975-06-09 | 1976-06-03 | Ferroelectric ceramic materials |
DE19762625535 DE2625535A1 (en) | 1975-06-09 | 1976-06-05 | FERROELECTRIC CERAMIC MATERIALS |
JP51066645A JPS527258A (en) | 1975-06-09 | 1976-06-09 | Optical material |
FR7617354A FR2332964A1 (en) | 1975-06-09 | 1976-06-09 | FERRO-ELECTRIC CERAMIC MATERIAL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2462375A GB1516408A (en) | 1975-06-09 | 1975-06-09 | Ferroelectric ceramic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1516408A true GB1516408A (en) | 1978-07-05 |
Family
ID=10214618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2462375A Expired GB1516408A (en) | 1975-06-09 | 1975-06-09 | Ferroelectric ceramic materials |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS527258A (en) |
CA (1) | CA1090556A (en) |
DE (1) | DE2625535A1 (en) |
FR (1) | FR2332964A1 (en) |
GB (1) | GB1516408A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2072651A (en) * | 1980-03-19 | 1981-10-07 | Hitachi Ltd | Ceramic crystal |
EP0237250A1 (en) * | 1986-03-04 | 1987-09-16 | Matsushita Electric Industrial Co., Ltd. | Ferroelectric film device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3666666A (en) * | 1969-12-17 | 1972-05-30 | Atomic Energy Commission | Ferroelectric ceramic materials |
JPS522083B2 (en) * | 1971-10-01 | 1977-01-19 |
-
1975
- 1975-06-09 GB GB2462375A patent/GB1516408A/en not_active Expired
-
1976
- 1976-06-03 CA CA253,956A patent/CA1090556A/en not_active Expired
- 1976-06-05 DE DE19762625535 patent/DE2625535A1/en active Pending
- 1976-06-09 FR FR7617354A patent/FR2332964A1/en not_active Withdrawn
- 1976-06-09 JP JP51066645A patent/JPS527258A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2072651A (en) * | 1980-03-19 | 1981-10-07 | Hitachi Ltd | Ceramic crystal |
EP0237250A1 (en) * | 1986-03-04 | 1987-09-16 | Matsushita Electric Industrial Co., Ltd. | Ferroelectric film device |
US5308462A (en) * | 1986-03-04 | 1994-05-03 | Matsushita Electric Industrial Co., Ltd. | Process for producing a ferroelectric film device |
Also Published As
Publication number | Publication date |
---|---|
CA1090556A (en) | 1980-12-02 |
DE2625535A1 (en) | 1976-12-23 |
JPS527258A (en) | 1977-01-20 |
FR2332964A1 (en) | 1977-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |