GB1299616A - Ceramic piezoelectric material - Google Patents
Ceramic piezoelectric materialInfo
- Publication number
- GB1299616A GB1299616A GB2524470A GB2524470A GB1299616A GB 1299616 A GB1299616 A GB 1299616A GB 2524470 A GB2524470 A GB 2524470A GB 2524470 A GB2524470 A GB 2524470A GB 1299616 A GB1299616 A GB 1299616A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- compact
- ceramic
- electric
- piezo
- 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
- 239000000919 ceramic Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 title abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 230000005684 electric field Effects 0.000 abstract 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 abstract 2
- 229910013641 LiNbO 3 Inorganic materials 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
Abstract
1299616 Piezo-electric ceramic materials PLESSEY CO Ltd 7 May 1971 [26 May 1970] 25244/70 Heading C1J [Also in Division H1] A method of manufacturing a ceramic piezo-electric lithium niobate includes the steps: providing an electroded ceramic compact; applying an electric field while the temperature is raised above 5/6 of the melting temperature in ‹ K., to simultaneously sinter and polarize the material; and finally cooling the poled compact while maintaining the electric field until the temperature is below the Curie temperature. LiNbO 3 is made by grinding together equimolar proportions of Li 2 CO 3 and Nb 2 O 5 which are then calcined at 800‹ C. for 1¢ hours, then ground in acetone, and then isostatically compacted into shape. The compacted material is sintered and polarized at a temperature of 1200‹ C. (see Division H1). The lithium in the compact may be partially substituted by Ta, Ti, Zr, Mo or W and the lithium niobate compact may additionally include Na, Cd or Mg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2524470A GB1299616A (en) | 1970-05-26 | 1970-05-26 | Ceramic piezoelectric material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2524470A GB1299616A (en) | 1970-05-26 | 1970-05-26 | Ceramic piezoelectric material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1299616A true GB1299616A (en) | 1972-12-13 |
Family
ID=10224548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2524470A Expired GB1299616A (en) | 1970-05-26 | 1970-05-26 | Ceramic piezoelectric material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1299616A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239189A (en) * | 2018-09-20 | 2019-01-18 | 河南理工大学 | High-temperature pipe supersonic guide-wave based on functionally graded material monitors system and method |
-
1970
- 1970-05-26 GB GB2524470A patent/GB1299616A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239189A (en) * | 2018-09-20 | 2019-01-18 | 河南理工大学 | High-temperature pipe supersonic guide-wave based on functionally graded material monitors system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2708244A (en) | Piezoelectric transducers using lead titanate and lead zirconate | |
| US2805165A (en) | Ceramic composition | |
| GB681671A (en) | Improvements in and relating to electro-mechanical translating devices | |
| GB1299616A (en) | Ceramic piezoelectric material | |
| CA958124A (en) | Piezoelectric resonator | |
| Mara et al. | Infrared spectrum of barium titanate | |
| GB1515314A (en) | Polarization of a ferroelectric material | |
| GB1179170A (en) | Piezoelectric Ceramic Material | |
| CN101311139A (en) | Leadless piezoelectric ceramics with bismuth ion replacing modified potassium sodium niobate base and method for preparing same | |
| Fox et al. | On the piezoelectric properties of tourmaline | |
| US3303133A (en) | Process for producing dense ceramic of lead zirconate-titanate | |
| CN85100703B (en) | Compactive porous sandwich piezoelectric ceramics | |
| JPS52142948A (en) | Piezoelectric ceramic filter | |
| EP0372393A3 (en) | Electro-optical polycrystalline barium lanthanum titanium niobate | |
| SU985009A1 (en) | Method of producing piezoelectric ceramics | |
| SU601260A1 (en) | Piezoelectric ceramic material | |
| JPS5271698A (en) | Piezoelectric ceramics | |
| GB1199438A (en) | Piezo-Electric Ceramics Composition | |
| GB1065411A (en) | Improved ferroelectric device, and/or piezoelectric device; and method for the manufacture of same | |
| Mezina et al. | Effect of heat treatment on the piezoelectric characteristics of lead zirconate-titanate ceramics | |
| SU434070A1 (en) | CERAMIC MATERIAL | |
| JPS5515243A (en) | Manufacturing method of laminated piezo-electric ceramic | |
| GB1516408A (en) | Ferroelectric ceramic materials | |
| SU489742A1 (en) | Piezoceramic material | |
| GB1193919A (en) | Improvements in or relating to Piezoelectric Ceramics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |