GB867781A - Improvements in or relating to glaze compositions - Google Patents
Improvements in or relating to glaze compositionsInfo
- Publication number
- GB867781A GB867781A GB300757A GB300757A GB867781A GB 867781 A GB867781 A GB 867781A GB 300757 A GB300757 A GB 300757A GB 300757 A GB300757 A GB 300757A GB 867781 A GB867781 A GB 867781A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glaze
- semi
- conducting
- plus
- barium ferrite
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/002—Inhomogeneous material in general
- H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
-
- 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
- C04B35/26—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 ferrites
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Insulating Bodies (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
867,781. Semi-conducting glazes. CENTRAL ELECTRICITY GENERATING BOARD, and SMITH, E. J. D. Jan. 28, 1958 [Jan. 28, 1957], No. 3007/57. Drawings to Specification. Class 56. A semi-conducting glaze composition for ceramic electrical devices e.g. high voltage porcelain insulators, comprises a high temperature base glaze having incorporated therein a substance which provides a substantially single and simple crystalline phase semi-conducting network in the vitreous phase of the glaze when the glaze composition has been fired. Specified are glazes wherein 16-40% of the semi-conducting glaze composition is barium ferrite or barium ferrite plus at least 4% zinc oxide or barium carbonate plus calcined ferric oxide or calcined ferric oxide plus zinc oxide or 20-30% of glaze is magnesium oxide plus ferric oxide. The particle size of the barium ferrite employed is less than 5 microns. The glaze may be applied to a ceramic electrical device by applying to the unfired ceramic a slip consisting of a base glaze composition having incorporated therein a substance to provide the single and simple crystalline network on firing and firing the coated device e.g. at 1200‹-1280‹C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB300757A GB867781A (en) | 1957-01-28 | 1957-01-28 | Improvements in or relating to glaze compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB300757A GB867781A (en) | 1957-01-28 | 1957-01-28 | Improvements in or relating to glaze compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB867781A true GB867781A (en) | 1961-05-10 |
Family
ID=9750192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB300757A Expired GB867781A (en) | 1957-01-28 | 1957-01-28 | Improvements in or relating to glaze compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB867781A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258521A (en) * | 1963-04-11 | 1966-06-28 | Owens Illinois Inc | Coating for glass and method of applying |
| CN112897882A (en) * | 2021-04-02 | 2021-06-04 | 佛山市赣联建材有限公司 | Environment-friendly acid-pollution-free etching glaze and preparation method and application thereof |
-
1957
- 1957-01-28 GB GB300757A patent/GB867781A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258521A (en) * | 1963-04-11 | 1966-06-28 | Owens Illinois Inc | Coating for glass and method of applying |
| CN112897882A (en) * | 2021-04-02 | 2021-06-04 | 佛山市赣联建材有限公司 | Environment-friendly acid-pollution-free etching glaze and preparation method and application thereof |
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