GB1377625A - Pyroelectric materials - Google Patents
Pyroelectric materialsInfo
- Publication number
- GB1377625A GB1377625A GB3634871A GB3634871A GB1377625A GB 1377625 A GB1377625 A GB 1377625A GB 3634871 A GB3634871 A GB 3634871A GB 3634871 A GB3634871 A GB 3634871A GB 1377625 A GB1377625 A GB 1377625A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- pyroelectric
- zircotitanate
- polarized
- resins
- 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
- 239000004925 Acrylic resin Substances 0.000 abstract 1
- 229920000178 Acrylic resin Polymers 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- ZBSCCQXBYNSKPV-UHFFFAOYSA-N oxolead;oxomagnesium;2,4,5-trioxa-1$l^{5},3$l^{5}-diniobabicyclo[1.1.1]pentane 1,3-dioxide Chemical compound [Mg]=O.[Pb]=O.[Pb]=O.[Pb]=O.O1[Nb]2(=O)O[Nb]1(=O)O2 ZBSCCQXBYNSKPV-UHFFFAOYSA-N 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000001993 wax Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric
- H01G7/026—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric with ceramic dielectric
-
- 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)
- Power Engineering (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Radiation Pyrometers (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
1377625 Pyroelectric devices; image pick-up tubes DEFENCE SECRETARY OF STATE FOR 1 Sept 1972 [3 Aug 1971] 36348/71 Headings H1K and H1D A pyroelectric device for use in heat-sensitive vidicons, pyrometers, or thermometers has a polarized body comprising oxidic ferroelectric particles of size less than 200 Ám. dispersed in a non-ferroelectric insulating matrix. The body is polarized during manufacture by the application of a unidirectional field. Suitable ferroelectrics are lead zircotitanate, lead barium niobate, and an aggregate of lead magnesium niobate and lead zircotitanate. Binders may be waxes, glues, glasses, plastics and resins. Epoxy and acrylic resins are specified. Methods of making the body of the device are summarized in Claims 7 to 12. Silver paint electrodes are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3634871A GB1377625A (en) | 1972-09-01 | 1972-09-01 | Pyroelectric materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3634871A GB1377625A (en) | 1972-09-01 | 1972-09-01 | Pyroelectric materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1377625A true GB1377625A (en) | 1974-12-18 |
Family
ID=10387331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3634871A Expired GB1377625A (en) | 1972-09-01 | 1972-09-01 | Pyroelectric materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1377625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940897A (en) * | 1988-06-01 | 1990-07-10 | Cerberus Ag | Novel pyroelectric detector |
-
1972
- 1972-09-01 GB GB3634871A patent/GB1377625A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940897A (en) * | 1988-06-01 | 1990-07-10 | Cerberus Ag | Novel pyroelectric detector |
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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 |