GB1241974A - Barium titanate, barium titanate compositions and preparation thereof - Google Patents
Barium titanate, barium titanate compositions and preparation thereofInfo
- Publication number
- GB1241974A GB1241974A GB3660168A GB3660168A GB1241974A GB 1241974 A GB1241974 A GB 1241974A GB 3660168 A GB3660168 A GB 3660168A GB 3660168 A GB3660168 A GB 3660168A GB 1241974 A GB1241974 A GB 1241974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bao
- tio
- powder
- titanate
- barium titanate
- 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
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 title abstract 4
- 229910002113 barium titanate Inorganic materials 0.000 title abstract 4
- 239000000203 mixture Substances 0.000 title abstract 2
- 229910010413 TiO 2 Inorganic materials 0.000 abstract 5
- 239000000843 powder Substances 0.000 abstract 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 3
- 239000003966 growth inhibitor Substances 0.000 abstract 2
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 abstract 1
- 229910006404 SnO 2 Inorganic materials 0.000 abstract 1
- -1 ZrO 2 Chemical compound 0.000 abstract 1
- 229910000416 bismuth oxide Inorganic materials 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/006—Alkaline earth titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
- C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
- H01G4/1209—Ceramic dielectrics characterised by the ceramic dielectric material
- H01G4/1218—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates
- H01G4/1227—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates based on alkaline earth titanates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/34—Three-dimensional structures perovskite-type (ABO3)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/60—Compounds characterised by their crystallite size
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/76—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by a space-group or by other symmetry indications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/32—Thermal properties
- C01P2006/33—Phase transition temperatures
- C01P2006/36—Solid to solid transition temperatures
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
1,241,974. Barium titanate; refractories. NATIONAL LEAD CO. 31 July, 1968 [31 July, 1967]. No. 36601/68. Headings C1A and CIJ. A calcined powder of barium titanate, having an average particle size of 0À5-2 Á, and an average crystallite size of 0À3-0À5 Á, with substantially all crystallites within the range 0À1-1À0 Á, and a BaO: TiO 2 mole ratio of 1À00- 1-02 may be prepared by forming a mixture of a finely divided BaO or BaO-forming material, a TiO 2 or a TiO 2 -forming material having an average particle size from 0À1 to 1.0 Á, and up to 0À5 mole per cent of a grain growth inhibitor, the BaO and TiO 2 materials being present in such an amount as to give a product with a mole ratio BaO: TiO 2 of 1À00-1À02, calcining at 1260-1370‹ C. for such a time as to form crystallites of the titanate of average size 0À3-0À5 Á, substantially all crystallites being within the range 0À1-1 Á, and comminuting the titanate to the required particle size without significant introduction of impurity Nb 2 O 5 may be used as the grain growth inhibitor. The powder may also include an oxide which shifts the Curie temperature, preferably an oxide which may replace the Ti in the titanate, e.g. ZrO 2 , SnO 2 , Sb 2 O 5 , Nb 2 O 5 , and the powder may also contain 2-7% bismuth oxide. In examples, various mixed oxides are added to the powder e.g. Bi 2 O 3 .3TiO 2 ; BaO.Sb 2 O 5 ; Bi 2 O 5 .Zro 2 ; BaSnO 3 ; BaZrO 3 ; PbO.Nb 2 O 5 ; BaO.Nb 2 O 5 . The powder may be compressed at superatmospheric pressure, and fired at normal atmospheric pressure, to give a shaped ceramic body.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65772567A | 1967-07-31 | 1967-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1241974A true GB1241974A (en) | 1971-08-11 |
Family
ID=24638423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3660168A Expired GB1241974A (en) | 1967-07-31 | 1968-07-31 | Barium titanate, barium titanate compositions and preparation thereof |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE718802A (en) |
| DE (1) | DE1771923B1 (en) |
| FR (1) | FR1581746A (en) |
| GB (1) | GB1241974A (en) |
| NL (1) | NL6810759A (en) |
| NO (1) | NO121199B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190076A (en) * | 1986-05-05 | 1987-11-11 | Cabot Corp | Barium titanate coforms |
| WO2001069696A2 (en) * | 2000-03-13 | 2001-09-20 | Massachusetts Institute Of Technology | Rhombohedral-phase barium titanate as a piezoelectric transducer |
| EP1415960A2 (en) | 2002-10-30 | 2004-05-06 | Murata Manufacturing Co., Ltd. | Method for making raw dielectric ceramic powder, dielectric ceramic and monolithic ceramic capacitor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920781A (en) * | 1971-04-02 | 1975-11-18 | Sprague Electric Co | Method of forming a ceramic dielectric body |
| NL8902923A (en) * | 1989-11-27 | 1991-06-17 | Philips Nv | CERAMIC BODY OF A DIELECTRIC MATERIAL BASED ON BARIUM TITANATE. |
| CN115073164B (en) * | 2022-06-13 | 2023-06-06 | 安徽工程大学 | Ca+Sb co-doped TiO 2 Giant dielectric ceramic, preparation method and application thereof |
-
1968
- 1968-07-29 NL NL6810759A patent/NL6810759A/xx unknown
- 1968-07-30 NO NO299068A patent/NO121199B/no unknown
- 1968-07-30 BE BE718802D patent/BE718802A/xx unknown
- 1968-07-30 FR FR1581746D patent/FR1581746A/fr not_active Expired
- 1968-07-31 DE DE19681771923 patent/DE1771923B1/en active Pending
- 1968-07-31 GB GB3660168A patent/GB1241974A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190076A (en) * | 1986-05-05 | 1987-11-11 | Cabot Corp | Barium titanate coforms |
| GB2190076B (en) * | 1986-05-05 | 1990-12-05 | Cabot Corp | Barium titanate coforms |
| WO2001069696A2 (en) * | 2000-03-13 | 2001-09-20 | Massachusetts Institute Of Technology | Rhombohedral-phase barium titanate as a piezoelectric transducer |
| WO2001069696A3 (en) * | 2000-03-13 | 2002-06-13 | Massachusetts Inst Technology | Rhombohedral-phase barium titanate as a piezoelectric transducer |
| US6526833B1 (en) | 2000-03-13 | 2003-03-04 | Massachusetts Institute Of Technology | Rhombohedral-phase barium titanate as a piezoelectric transducer |
| EP1415960A2 (en) | 2002-10-30 | 2004-05-06 | Murata Manufacturing Co., Ltd. | Method for making raw dielectric ceramic powder, dielectric ceramic and monolithic ceramic capacitor |
| EP1415960A3 (en) * | 2002-10-30 | 2006-05-10 | Murata Manufacturing Co., Ltd. | Method for making raw dielectric ceramic powder, dielectric ceramic and monolithic ceramic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| NO121199B (en) | 1971-01-25 |
| DE1771923B1 (en) | 1972-03-09 |
| FR1581746A (en) | 1969-09-19 |
| NL6810759A (en) | 1969-02-04 |
| BE718802A (en) | 1969-01-30 |
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