GB1059538A - Improvements relating to methods of producing ceramic, dielectric materials and articles produced using these materials - Google Patents
Improvements relating to methods of producing ceramic, dielectric materials and articles produced using these materialsInfo
- Publication number
- GB1059538A GB1059538A GB28358/64A GB2835864A GB1059538A GB 1059538 A GB1059538 A GB 1059538A GB 28358/64 A GB28358/64 A GB 28358/64A GB 2835864 A GB2835864 A GB 2835864A GB 1059538 A GB1059538 A GB 1059538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tio2
- zno
- free
- starting material
- materials
- 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
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
A ceramic dielectric material consisting of fine crystalline barium titanate and free and/or combined ZnO, is produced by a process comprising the steps of preparing a finely divided (particle size about 1 micron) mixture of a <PICT:1059538/C1/1> starting material consisting wholly or substantially of barium titanate, any remainder of starting material being BaCO3, BaO, TiO2 and/or compounds of these oxides, and an addition comprising ZnO, Zn2TiO4, a barium zinc titanate and/or TiO2 together with one or more of these zinc-containing compounds and sintering to compactness, the compositions and quantities of the starting material and addition being such that the molar ratio BaO : TiO2 in the product has values from 100 : 100 to 100 : (100 + 7X) wherein X is the molar percentage of free and combined ZnO in the product and has values from 0.5 to 5. The addition may contain free TiO2 and/or free ZnO and the starting material preferably has a molar ratio BaO : TiO2 of 100 : 96 to 100 : 108. The sintered product may contain 1-4 mol. per cent of free and/or combined ZnO; the combined ZnO may be present as Zn2TiO4, BaZn2Ti4O11 or Ba2ZnTi5O13. The composition of the sintered material lies within the area AA1D1D of the ternary composition diagram shown in Fig. 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL295254 | 1963-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1059538A true GB1059538A (en) | 1967-02-22 |
Family
ID=19754872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28358/64A Expired GB1059538A (en) | 1963-07-12 | 1964-07-09 | Improvements relating to methods of producing ceramic, dielectric materials and articles produced using these materials |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4514464B1 (en) |
| AT (1) | AT263172B (en) |
| CH (1) | CH454724A (en) |
| DE (1) | DE1471348B2 (en) |
| ES (1) | ES301926A1 (en) |
| GB (1) | GB1059538A (en) |
-
1964
- 1964-07-08 DE DE19641471348 patent/DE1471348B2/en active Pending
- 1964-07-09 CH CH900164A patent/CH454724A/en unknown
- 1964-07-09 AT AT591864A patent/AT263172B/en active
- 1964-07-09 GB GB28358/64A patent/GB1059538A/en not_active Expired
- 1964-07-10 ES ES0301926A patent/ES301926A1/en not_active Expired
- 1964-07-11 JP JP3873164A patent/JPS4514464B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AT263172B (en) | 1968-07-10 |
| JPS4514464B1 (en) | 1970-05-22 |
| CH454724A (en) | 1968-04-15 |
| DE1471348A1 (en) | 1969-03-06 |
| ES301926A1 (en) | 1965-01-01 |
| DE1471348B2 (en) | 1972-11-16 |
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