GB577748A - Improvements in electric insulators - Google Patents

Improvements in electric insulators

Info

Publication number
GB577748A
GB577748A GB250843A GB250843A GB577748A GB 577748 A GB577748 A GB 577748A GB 250843 A GB250843 A GB 250843A GB 250843 A GB250843 A GB 250843A GB 577748 A GB577748 A GB 577748A
Authority
GB
United Kingdom
Prior art keywords
oxide
ceramic
ceramic material
oxides
mixtures
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
Application number
GB250843A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taylor Tunnicliff & Co Ltd
Original Assignee
Taylor Tunnicliff & Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taylor Tunnicliff & Co Ltd filed Critical Taylor Tunnicliff & Co Ltd
Priority to GB250843A priority Critical patent/GB577748A/en
Publication of GB577748A publication Critical patent/GB577748A/en
Expired legal-status Critical Current

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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • 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)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

An electrically conductive coating or composition comprises ceramic material which has been mixed with oxides and subjected to heat treatment to produce within the ceramic material a continuous conductive network of crystals consisting of a solid solution of substances, usually spinels, of different resistivities. The oxide mixture may consist of zinc oxide, iron oxide, or nickel oxide in various proportions, or the nickel oxide may be replaced by cobalt oxide, chromium oxide, or copper oxide. Other oxides such as titanium oxide or zirconium oxide may be used. The ceramic material is a mixture of those materials usually used for ceramic bodies, glazes, or glasses. A number of ceramic mixtures and oxide mixtures are described in the Specification. The material thus formed is particularly suitable for producing electric resistances, or electric "insulators" which are electrically conductive or have an electrically-conducting coating.
GB250843A 1943-02-15 1943-02-15 Improvements in electric insulators Expired GB577748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB250843A GB577748A (en) 1943-02-15 1943-02-15 Improvements in electric insulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB250843A GB577748A (en) 1943-02-15 1943-02-15 Improvements in electric insulators

Publications (1)

Publication Number Publication Date
GB577748A true GB577748A (en) 1946-05-30

Family

ID=9740789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB250843A Expired GB577748A (en) 1943-02-15 1943-02-15 Improvements in electric insulators

Country Status (1)

Country Link
GB (1) GB577748A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527890A (en) * 1949-03-21 1950-10-31 Cutler Hammer Inc Tubular heater terminal seal
US2552640A (en) * 1947-07-05 1951-05-15 Bell Telephone Labor Inc Oxide resistors and method of making them
US2564677A (en) * 1947-09-15 1951-08-21 Corning Glass Works Electrically conducting coating on glass and other ceramic bodies
US2564707A (en) * 1947-09-03 1951-08-21 Corning Glass Works Electrically conducting coatings on glass and other ceramic bodies
DE1003309B (en) * 1954-05-17 1957-02-28 Licentia Gmbh High voltage insulator, especially outdoor insulator exposed to pollution
DE975985C (en) * 1950-02-05 1963-01-03 Telefunken Patent Process for producing an electrical resistor with a negative temperature coefficient
DE1220093B (en) * 1958-06-04 1966-06-30 Anna Mrackova Geb Metlicka Process for the production of semiconducting glazes on porcelain insulators
DE1278321B (en) * 1959-04-09 1968-09-19 Villeroy & Boch Process for the production of electrically semiconducting ceramic floor tiles

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552640A (en) * 1947-07-05 1951-05-15 Bell Telephone Labor Inc Oxide resistors and method of making them
US2564707A (en) * 1947-09-03 1951-08-21 Corning Glass Works Electrically conducting coatings on glass and other ceramic bodies
US2564677A (en) * 1947-09-15 1951-08-21 Corning Glass Works Electrically conducting coating on glass and other ceramic bodies
US2527890A (en) * 1949-03-21 1950-10-31 Cutler Hammer Inc Tubular heater terminal seal
DE975985C (en) * 1950-02-05 1963-01-03 Telefunken Patent Process for producing an electrical resistor with a negative temperature coefficient
DE1003309B (en) * 1954-05-17 1957-02-28 Licentia Gmbh High voltage insulator, especially outdoor insulator exposed to pollution
DE1220093B (en) * 1958-06-04 1966-06-30 Anna Mrackova Geb Metlicka Process for the production of semiconducting glazes on porcelain insulators
DE1278321B (en) * 1959-04-09 1968-09-19 Villeroy & Boch Process for the production of electrically semiconducting ceramic floor tiles

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