GB706993A - Method of improving the polarization of piezoelectric materials - Google Patents
Method of improving the polarization of piezoelectric materialsInfo
- Publication number
- GB706993A GB706993A GB12215/51A GB1221551A GB706993A GB 706993 A GB706993 A GB 706993A GB 12215/51 A GB12215/51 A GB 12215/51A GB 1221551 A GB1221551 A GB 1221551A GB 706993 A GB706993 A GB 706993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- batch
- ceramic
- polarizing field
- piezo
- electric
- 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
- 230000010287 polarization Effects 0.000 title 1
- 239000000919 ceramic Substances 0.000 abstract 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 abstract 1
- 229910002113 barium titanate Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 238000002360 preparation method Methods 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
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
- H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
706,993. Piezo-electric crystals. DEHN, F. B. (Globe-Union, Inc.). May 24, 1951, No. 12215/51. Drawings to Specification. Class 40 (8) In treating a metallic titanate ceramic to give it piezo-electric properties by raising its temperature above its Curie point and then applying a unidirectional electric polarizing field while the ceramic cools to a temperature below the Curie point, a number of samples from each batch of ceramic preparation are treated, each under a different polarizing voltage to determine the optimum polarizing field for each particular batch and cooling time. The voltage used with the sample that shows the best effect after treatment is then used for the treatment of the remainder of the batch. A barium titanate may be used and the polarizing field may be between 15 and 50 volts over one thousandth of an inch. Specification 673,729 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB12215/51A GB706993A (en) | 1951-05-24 | 1951-05-24 | Method of improving the polarization of piezoelectric materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB12215/51A GB706993A (en) | 1951-05-24 | 1951-05-24 | Method of improving the polarization of piezoelectric materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB706993A true GB706993A (en) | 1954-04-07 |
Family
ID=10000462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12215/51A Expired GB706993A (en) | 1951-05-24 | 1951-05-24 | Method of improving the polarization of piezoelectric materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB706993A (en) |
-
1951
- 1951-05-24 GB GB12215/51A patent/GB706993A/en not_active Expired
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