GB821292A - Improvements in or relating to ferroelectric and piezo-electric devices and crystal elements therefor - Google Patents
Improvements in or relating to ferroelectric and piezo-electric devices and crystal elements thereforInfo
- Publication number
- GB821292A GB821292A GB22514/57A GB2251457A GB821292A GB 821292 A GB821292 A GB 821292A GB 22514/57 A GB22514/57 A GB 22514/57A GB 2251457 A GB2251457 A GB 2251457A GB 821292 A GB821292 A GB 821292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycine
- sulphate
- piezo
- deuterated
- ferroelectric
- 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
- 239000013078 crystal Substances 0.000 title abstract 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 abstract 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract 4
- MSZSGKIGWIVVOP-UHFFFAOYSA-N carboxymethylazanium;hydrogen sulfate Chemical compound NCC(O)=O.OS(O)(=O)=O MSZSGKIGWIVVOP-UHFFFAOYSA-N 0.000 abstract 3
- MFPXBAPCIMYWHZ-UHFFFAOYSA-N 2-aminoacetic acid;selenic acid Chemical compound NCC(O)=O.O[Se](O)(=O)=O MFPXBAPCIMYWHZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000004471 Glycine Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- QYHFIVBSNOWOCQ-UHFFFAOYSA-N selenic acid Chemical compound O[Se](O)(=O)=O QYHFIVBSNOWOCQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/22—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using ferroelectric elements
-
- 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
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
Glycine sulphate (CH2NH2COOH)3H2SO4 and glycine selenate (CH2NH2COOH)3H2SeO4 are prepared in monoclinic crystalline form, e.g. as follows: three mols. glycine are added to one mol. conc. H2SO4 in warm water, the solution is supersaturated, and the monoclinic glycine sulphate crystallizes out. These crystals are ferro-electric and piezo-electric. Said sulphate may be "deuterated" to various stages of completion by dissolving the glycine sulphate to saturation in deuterium oxide giving for instance: (CH2ND2COOH)3H2SO4. "Deuterated" glycine selenate is prepared in a similar manner. Alternatively, the deuterated salt may be formed by dissolving an excess of glycine and sulphuric or selenic acid in heavy water, and crystallizing the product. Specifications 717,104, [Group XIX], and 810,451 are referred to.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60307256A | 1956-08-09 | 1956-08-09 | |
| US61754556A | 1956-10-22 | 1956-10-22 | |
| US619463A US2986681A (en) | 1956-10-31 | 1956-10-31 | Monoclinic glycine sulfate and isomorphs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB821292A true GB821292A (en) | 1959-10-07 |
Family
ID=27416870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22514/57A Expired GB821292A (en) | 1956-08-09 | 1957-07-16 | Improvements in or relating to ferroelectric and piezo-electric devices and crystal elements therefor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS34284B1 (en) |
| CH (1) | CH379574A (en) |
| DE (1) | DE1091162B (en) |
| GB (1) | GB821292A (en) |
| NL (2) | NL113403C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH437442A (en) * | 1963-08-31 | 1967-06-15 | Ceskoslovenska Akademie Ved | Reactance enhancer or mixer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL172335B (en) * | 1951-11-01 | Wavin Bv | WEEKLY FREE POLYVINYL CHLORIDE TUBE PART. |
-
0
- NL NL217538D patent/NL217538A/xx unknown
- NL NL113403D patent/NL113403C/xx active
-
1957
- 1957-05-08 DE DEW21134A patent/DE1091162B/en active Pending
- 1957-06-21 CH CH4751757A patent/CH379574A/en unknown
- 1957-07-16 GB GB22514/57A patent/GB821292A/en not_active Expired
- 1957-07-25 JP JP1834057A patent/JPS34284B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS34284B1 (en) | 1959-01-30 |
| DE1091162B (en) | 1960-10-20 |
| CH379574A (en) | 1964-07-15 |
| NL217538A (en) | |
| NL113403C (en) |
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