DE741159C - Electrical insulating body made of ceramic material containing titanium dioxide as the main component - Google Patents

Electrical insulating body made of ceramic material containing titanium dioxide as the main component

Info

Publication number
DE741159C
DE741159C DER97336D DER0097336D DE741159C DE 741159 C DE741159 C DE 741159C DE R97336 D DER97336 D DE R97336D DE R0097336 D DER0097336 D DE R0097336D DE 741159 C DE741159 C DE 741159C
Authority
DE
Germany
Prior art keywords
main component
ceramic material
titanium dioxide
insulating body
electrical insulating
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
DER97336D
Other languages
German (de)
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.)
Rosenthal Isolatoren GmbH
Original Assignee
Rosenthal Isolatoren GmbH
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 Rosenthal Isolatoren GmbH filed Critical Rosenthal Isolatoren GmbH
Priority to DER97336D priority Critical patent/DE741159C/en
Application granted granted Critical
Publication of DE741159C publication Critical patent/DE741159C/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
    • 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

Description

Elektrischer Isolierkörper aus Titandioxyd als Hauptbestandteil enthaltendem keramischem Werkstoff Elektrische Isolierkörper mit hoher Dielektrizitätskonstante aus Titandioxyd als Hauptbestandteil enthaltendem keramischem Werkstoff sind, besonders als, Dielektrikum für Kondensatoren, bekannt. Bei diesen Isolierkörpern erreicht aber mit abnehmender Frequenz der Verlustfaktor unzulässig hohe Werte. Bei der Frequenz des technischen Wechselstromes (So Hz) beträgt der Verlustwinkel (tg ö) Zoo :bis q.oo- io-4.Electrical insulator made of titanium dioxide as the main component ceramic material Electrical insulators with high dielectric constant made of titanium dioxide as the main component containing ceramic material are, in particular known as the dielectric for capacitors. Achieved with these insulators but with decreasing frequency the loss factor inadmissibly high values. At the frequency of the technical alternating current (So Hz) is the loss angle (tg ö) Zoo: bis q.oo- io-4.

Es wurde nun gefunden, daß der Verlust bei niedrigen Frequenzen erheblich geringer ist, wenn diese elektrischen Isolierkörper einen Gehalt an Ceroxyd, Thoriumoxyd oder Hafniumoxyd aufweisen.It has now been found that the loss at low frequencies is significant is less if these electrical insulators contain cerium oxide, thorium oxide or hafnium oxide.

Es sind keramische Massen bekannt, die gegebenenfalls Gemische aus Titanoxyd und Thoroxyd sowie seltene Erden enthalten. Diese Massen wurden jedoch zur Herstellung von feuerfesten Tiegeln und nacht zur Herstellung.#von elektrischen Isolierkörpern verarbeitet, und über ihre elektrischen Eigenschaften war nichts bekannt.There are ceramic masses known, optionally mixtures of Contain titanium oxide and thoroxide as well as rare earths. However, these crowds were for the manufacture of refractory crucibles and night for the manufacture of electrical Insulating bodies were processed, and there was nothing about their electrical properties known.

Demgegenüber handelt es sich bei der Erfindung um elektrische Isolierkörper; bei denen der verhältnismäßig geringe Gehalt an Hafniurnoxyd, Ceroxyd oder Thoriumoxyd oder Gemischen dieser Oxyde - man kommt mit Zusätzen der Oxyde aus, die 3 bis i2°% betragen - bewirkt, daß der Titandioxyd als Hauptbestandteil enthaltende Isolierkörper einen bei Hochfrequenz von i # io" Hz gemessenen Verlustfaktor von io bis 15 # io-4 aufweist.In contrast, the invention relates to electrical insulating bodies; in which the relatively low content of hafnium oxide, cerium oxide or thorium oxide or mixtures of these oxides - one can manage with additions of the oxides that are 3 to 12% - causes the insulating body containing titanium dioxide as the main component a loss factor of io to 15 # io-4 measured at a high frequency of i # io "Hz having.

Ferner wird bei den Isolierkörpern nach der Erfindung das Ansteigen des Verlustfaktors bei abnehmender Frequenz zum größten Teil vermieden. Bei 8oo Hz und bei So Hz wurden nämlich Verlustwinkelwerte (tg 8) von 25 bis 35 # i0-4 gefunden.Furthermore, in the insulating bodies according to the invention, the increase the loss factor largely avoided with decreasing frequency. At 8oo Hz and at So Hz, loss angle values (tg 8) of 25 to 35 # i0-4 were found.

Claims (1)

PATENTANSPRUCH: Elektrischer Isolierkörper aus Titan-. dioxyd als Hauptbestandteil enthaltendem keramischem Werkstoff, gekennzeichnet durch einen Gehalt an Hafniumoxyd, Cer-Oxyd oder Thoriumoxyd oder Gemischen dieser Oxyde. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: amerikanische Patentschrift Nr. i 157 662; französische - 799283.PATENT CLAIM: Electrical insulating body made of titanium. Ceramic material containing dioxide as the main component, characterized by a content of hafnium oxide, cerium oxide or thorium oxide or mixtures of these oxides. To distinguish the subject matter of the application from the state of the art, the following publications were considered in the granting procedure: American patent specification No. i 157 662; french - 799283.
DER97336D 1936-09-16 1936-09-16 Electrical insulating body made of ceramic material containing titanium dioxide as the main component Expired DE741159C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER97336D DE741159C (en) 1936-09-16 1936-09-16 Electrical insulating body made of ceramic material containing titanium dioxide as the main component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER97336D DE741159C (en) 1936-09-16 1936-09-16 Electrical insulating body made of ceramic material containing titanium dioxide as the main component

Publications (1)

Publication Number Publication Date
DE741159C true DE741159C (en) 1943-11-23

Family

ID=7419742

Family Applications (1)

Application Number Title Priority Date Filing Date
DER97336D Expired DE741159C (en) 1936-09-16 1936-09-16 Electrical insulating body made of ceramic material containing titanium dioxide as the main component

Country Status (1)

Country Link
DE (1) DE741159C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918380C (en) * 1949-09-12 1954-09-23 Dubilier Condenser Co 1925 Ltd dielectric
DE1113407B (en) * 1956-05-30 1961-08-31 Plessey Co Ltd Process for the production of a ceramic, dielectric material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1157662A (en) * 1914-10-05 1915-10-26 Firm Of Dr O Knoefler & Co Process for the manufacture of fireproof utensils from refractory oxids.
FR799283A (en) * 1934-12-14 1936-06-10 Steatit Magnesia Ag High dielectric constant insulating material and process for its manufacture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1157662A (en) * 1914-10-05 1915-10-26 Firm Of Dr O Knoefler & Co Process for the manufacture of fireproof utensils from refractory oxids.
FR799283A (en) * 1934-12-14 1936-06-10 Steatit Magnesia Ag High dielectric constant insulating material and process for its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918380C (en) * 1949-09-12 1954-09-23 Dubilier Condenser Co 1925 Ltd dielectric
DE1113407B (en) * 1956-05-30 1961-08-31 Plessey Co Ltd Process for the production of a ceramic, dielectric material

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