GB515633A - Improvements in or relating to the production of ceramic dielectrics - Google Patents

Improvements in or relating to the production of ceramic dielectrics

Info

Publication number
GB515633A
GB515633A GB1702938A GB1702938A GB515633A GB 515633 A GB515633 A GB 515633A GB 1702938 A GB1702938 A GB 1702938A GB 1702938 A GB1702938 A GB 1702938A GB 515633 A GB515633 A GB 515633A
Authority
GB
United Kingdom
Prior art keywords
firing
per cent
steatite
zero
coefficients
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
GB1702938A
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.)
Steatite and Porcelain Products Ltd
Original Assignee
Steatite and Porcelain Products 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 Steatite and Porcelain Products Ltd filed Critical Steatite and Porcelain Products Ltd
Priority to GB1702938A priority Critical patent/GB515633A/en
Publication of GB515633A publication Critical patent/GB515633A/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

Abstract

515,633. Electric condensers ; dielectrics. STEATITE & PORCELAIN PRODUCTS, Ltd., and CLARK, N. O. June 8, 1938, No. 17029. [Class 37] [Also in Group V] For obtaining ceramic dielectrics for electric condensers which will have zero firing coefficients (i.e., the temperature coefficient of dielectric constant is independent of the temperature of firing), mixtures of refractory substances with titanium oxide as base, containing substances of positive and negative firing coefficients are made. Steatite is an example of the former class and clay of the latter. By firing mixtures of zero firing coefficient and positive and negative temperature coefficient of dielectric constant, ceramics having both coefficients equal to zero may be obtained. An example of a mix is in titanium dioxide 28.0 per cent., witherite 5.0 per cent., steatite 27.5 per cent and clay 39-5 per cent. Magnesia and alkaline earth metal may also be added.
GB1702938A 1938-06-08 1938-06-08 Improvements in or relating to the production of ceramic dielectrics Expired GB515633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1702938A GB515633A (en) 1938-06-08 1938-06-08 Improvements in or relating to the production of ceramic dielectrics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1702938A GB515633A (en) 1938-06-08 1938-06-08 Improvements in or relating to the production of ceramic dielectrics

Publications (1)

Publication Number Publication Date
GB515633A true GB515633A (en) 1939-12-11

Family

ID=10087936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1702938A Expired GB515633A (en) 1938-06-08 1938-06-08 Improvements in or relating to the production of ceramic dielectrics

Country Status (1)

Country Link
GB (1) GB515633A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976668C (en) * 1942-12-15 1964-02-20 Steatit Magnesia Ag Process for the production of ceramic capacitor dielectrics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976668C (en) * 1942-12-15 1964-02-20 Steatit Magnesia Ag Process for the production of ceramic capacitor dielectrics

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