DE699112C - Electrical insulating body - Google Patents

Electrical insulating body

Info

Publication number
DE699112C
DE699112C DE1934ST052706 DEST052706D DE699112C DE 699112 C DE699112 C DE 699112C DE 1934ST052706 DE1934ST052706 DE 1934ST052706 DE ST052706 D DEST052706 D DE ST052706D DE 699112 C DE699112 C DE 699112C
Authority
DE
Germany
Prior art keywords
electrical insulating
insulating body
dielectric constant
titanium dioxide
insulating bodies
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
DE1934ST052706
Other languages
German (de)
Inventor
Dr Ernst Albers-Schoenberg
Dr Alfred Ungewiss
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.)
Steatit Magnesia AG
Original Assignee
Steatit Magnesia AG
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 Steatit Magnesia AG filed Critical Steatit Magnesia AG
Priority to DE1934ST052706 priority Critical patent/DE699112C/en
Application granted granted Critical
Publication of DE699112C publication Critical patent/DE699112C/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Insulating Materials (AREA)

Description

Elektrischer Isolierkörper Zusatz zum Patent 684 932 Gegenstand des Patents . 684 932 sind elektrische Isolierkörper, die im wesentlichen aus einer unter Bildung von Magnesiumtitanat dicht gesinterten Mischung von Magnesium-.oxyd und Titandioxyd bestehen. Diese Isolierkörper besitzen eine hohe Dielektrizitätskonstante, während der dielektrische Verlustfaktor verhältnismäßig klein gehalten werden kann.Electrical insulating addition to Patent 684,932 subject of the patent. 684 932 are electrical insulating bodies, which essentially consist of a mixture of magnesium oxide and titanium dioxide that is densely sintered to form magnesium titanate. These insulating bodies have a high dielectric constant, while the dielectric loss factor can be kept relatively small.

Für die Güte eines elektrischen Isolierstoffes, insbesondere für Hochfrequenzzwecke, ist außer dem dielektrischen Verlustfaktor und der Dielektrizitätskonstante noch die Abhängigkeit der Dielektrizitätskonstante von der Temperatur wichtig. Wie im Hauptpatent angegeben ist, ändert sich auch die Dielektrizitätskonstante von Magnesiumtitanatmassen mit der Temperatur nur in sehr engen Grenzen. Durch die Erfindung wird die Aufgabe gelöst,, elektrische Isolierkörper der Magnesiumtitanatklasse zu schaffen, bei denen die genannten elektrischen Größen einen Biestwert erreichen.For the quality of an electrical insulating material, especially for high frequency purposes, is apart from the dielectric loss factor and the dielectric constant the dependence of the dielectric constant on the temperature is important. Like in Main patent is indicated, the dielectric constant of magnesium titanate masses also changes with the temperature only within very narrow limits. The object is achieved by the invention solved, to create electrical insulating bodies of the magnesium titanate class, in which the electrical quantities mentioned reach a beast value.

Die Isolierkörper nach der Erfindung bestehen aus 46 bis 570/0 . T102, 32 bis 439/0 Mg0 und höchstens i i o/o weiteren Zuschlagsstoffen oder Floßmitteln. Diese Stoffgemische werden im Brande zwischen 1400 und 160o° C (Seeger-Kegel i3..., Seeger-Kegel 27) dichtgesintert. The insulating bodies according to the invention consist of 46 to 570/0. T102, 32 to 439/0 Mg0 and a maximum of 100% other additives or rafts. These mixtures of substances are densely sintered in the fire between 1400 and 160o ° C (Seeger cone i3 ..., Seeger cone 27).

Derartige Isolierkörper haben etwa folgende Eigenschaften: Der dielektrische Verlustfaktor tg ö ist durchweg kleiner als 6 # i o-4; es gelingt sogar, den Wert 3 # 10-4 zu unterschreiten (X = 30 ... 300 m), insbesondere bei denjenigen Stoffgemischen, die im höheren Temperaturbereich dicht gesidtertoder nach der Sinter_ung bei 400' einem höheren Nach-Brand unterworfen werden. Die Dielektrizitätskonstante liegt zwischen 15 und 25, die Änderung der Dielektrizitätskonstante mit der Temperatur zwischen ± 0,4 # i0-4 je Grad C zwischen 2o und Zoo'.Such insulating bodies have approximately the following properties: The dielectric loss factor tg ö is consistently less than 6 # i o-4; it is even possible to fall below the value 3 # 10-4 (X = 30 ... 300 m), especially with those substance mixtures that are densely sintered in the higher temperature range or are subjected to a higher post-fire after sintering at 400 '. The dielectric constant is between 15 and 25, the change in the dielectric constant with temperature between ± 0.4 # 10-4 per degree C between 2o and Zoo '.

Claims (1)

PATENTANSPRUCH:' Elektrischer Isolierkörper nach Patent 684932, der im wesentlichen aus einer unter Bildung von Magnesiumtitanat dicht gesinterten Mischung von Magnesiumoxyd und Titandioxyd besteht, gekennzeichnet durch einen Gehalt von 46 bis 57% TitandiOxYd, 32 bis 43% Magnesium@oxyd und höchstens i i % weiteren Zuschlagsstoffen oder Floßmitteln.PATENT CLAIM: 'Electrical insulating body according to patent 684932, which essentially consists of a mixture of magnesium oxide and titanium dioxide densely sintered to form magnesium titanate, characterized by a content of 46 to 57% titanium dioxide, 32 to 43% magnesium oxide and a maximum of ii% other Aggregates or rafts.
DE1934ST052706 1934-10-20 1934-10-20 Electrical insulating body Expired DE699112C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1934ST052706 DE699112C (en) 1934-10-20 1934-10-20 Electrical insulating body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1934ST052706 DE699112C (en) 1934-10-20 1934-10-20 Electrical insulating body

Publications (1)

Publication Number Publication Date
DE699112C true DE699112C (en) 1940-11-22

Family

ID=7466568

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1934ST052706 Expired DE699112C (en) 1934-10-20 1934-10-20 Electrical insulating body

Country Status (1)

Country Link
DE (1) DE699112C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909817C (en) * 1943-06-02 1954-04-26 Nat Lead Co Ceramic body with high dielectric constant
DE916188C (en) * 1946-05-16 1954-08-05 Nat Lead Co Ceramic dielectric

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909817C (en) * 1943-06-02 1954-04-26 Nat Lead Co Ceramic body with high dielectric constant
DE916188C (en) * 1946-05-16 1954-08-05 Nat Lead Co Ceramic dielectric

Similar Documents

Publication Publication Date Title
DE2166809C3 (en) Storage material
DE2437518C2 (en) Dielectric ceramic
DE699112C (en) Electrical insulating body
DE1589827C3 (en) Electric capacitor
DE717682C (en) Electrical capacitor with a ceramic dielectric containing titanium dioxide
DE869662C (en) Ceramic multilayer capacitor
DE713635C (en) Electrically semiconducting ground
DE767364C (en) Ceramic insulating compound, especially capacitor dielectric
DE1471483A1 (en) Ceramic dielectric
DE734734C (en) Capacitor with several different, layered dielectric bands made of fiber between the coverings, which are impregnated with an insulating agent as an additional dielectric
DE517347C (en) Electric valve
DE976609C (en) Electrical insulator and capacitor dielectric
DE905157C (en) Filling and pouring compound for electrical cable fittings and devices
DE913512C (en) Dielectric made of ceramic insulating material containing thorium
DE897071C (en) Electrical insulating body, in particular for high frequency purposes
DE829282C (en) Process for the electrostatic separation of two- or multi-substance batches
DE743389C (en) Use of highly porous insulating moldings for the purposes of high frequency technology
AT162875B (en) Process for the production of unalloyed or alloyed sintered steel bodies with a carbon content of 0¨4 to 0¨9%
DE544402C (en) Isolation arrangement for electrical heating devices
DE600339C (en) Electrical capacitor, consisting of a number of partial capacitors
DE965603C (en) Use of palladium alloys for electrical contacts
DE757157C (en) Electrical insulating oil made from mineral oil
DE702050C (en) Electrical high-voltage device, especially a transformer, with a filling of halogen derivatives of diphenyl or mixtures thereof with other chlorinated hydrocarbons
DE2126417B2 (en) Use of a tantalum powder for the manufacture of sintered anodes for electrolytic capacitors
DE748695C (en) Process for the production of fruit pastes from finely chopped fruits