GB1445631A - Ceramic material for pyroelectric devices and devices incorporating such material - Google Patents
Ceramic material for pyroelectric devices and devices incorporating such materialInfo
- Publication number
- GB1445631A GB1445631A GB674473A GB674473A GB1445631A GB 1445631 A GB1445631 A GB 1445631A GB 674473 A GB674473 A GB 674473A GB 674473 A GB674473 A GB 674473A GB 1445631 A GB1445631 A GB 1445631A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ceramic
- devices
- uranium oxide
- pyrroelectric
- sieving
- 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
- 229910010293 ceramic material Inorganic materials 0.000 title 1
- 239000000463 material Substances 0.000 title 1
- WZECUPJJEIXUKY-UHFFFAOYSA-N [O-2].[O-2].[O-2].[U+6] Chemical compound [O-2].[O-2].[O-2].[U+6] WZECUPJJEIXUKY-UHFFFAOYSA-N 0.000 abstract 3
- 239000000919 ceramic Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 229910000439 uranium oxide Inorganic materials 0.000 abstract 3
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 abstract 2
- 238000007873 sieving Methods 0.000 abstract 2
- 229910010413 TiO 2 Inorganic materials 0.000 abstract 1
- 238000000498 ball milling Methods 0.000 abstract 1
- 239000012153 distilled water Substances 0.000 abstract 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
1445631 Ceramic pyrroelectric composition DEFENCE SECRETARY OF STATE FOR 28 March 1974 [12 Feb 1973] 6744/73 Heading C1J [Also in Division H1] A ceramic composition for use in a pyrroelectric device (see Division H1) comprises lead zirconate and lead titanate in solid solution doped with sufficient of a uranium oxide to provide a resistivity times dielectric constant product of between 5 Î 10<SP>11</SP> and 5 Î 10<SP>13</SP> ohm cm. Preferably the mol ratio of lead zirconate to lead titanate is from 60 : 40 to 90 : 10. The uranium oxide may be U 3 O 8 constituting up to 1À5% by weight of the ceramic. After repeated ball-milling in distilled water, sieving, compacting and breaking up of a mixture of PbO, ZnO 2 and TiO 2 , the uranium oxide is added, and after further milling and sieving the powder is formed into sintered discs which may be ground to a desired thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB674473A GB1445631A (en) | 1973-02-12 | 1973-02-12 | Ceramic material for pyroelectric devices and devices incorporating such material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB674473A GB1445631A (en) | 1973-02-12 | 1973-02-12 | Ceramic material for pyroelectric devices and devices incorporating such material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1445631A true GB1445631A (en) | 1976-08-11 |
Family
ID=9819991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB674473A Expired GB1445631A (en) | 1973-02-12 | 1973-02-12 | Ceramic material for pyroelectric devices and devices incorporating such material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1445631A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041297A1 (en) * | 1980-06-02 | 1981-12-09 | Philips Electronics Uk Limited | Pyroelectric detector |
-
1973
- 1973-02-12 GB GB674473A patent/GB1445631A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041297A1 (en) * | 1980-06-02 | 1981-12-09 | Philips Electronics Uk Limited | 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 |