NL6814459A - Sintered silicon carbide varistors containing graphite mfre - Google Patents

Sintered silicon carbide varistors containing graphite mfre

Info

Publication number
NL6814459A
NL6814459A NL6814459A NL6814459A NL6814459A NL 6814459 A NL6814459 A NL 6814459A NL 6814459 A NL6814459 A NL 6814459A NL 6814459 A NL6814459 A NL 6814459A NL 6814459 A NL6814459 A NL 6814459A
Authority
NL
Netherlands
Prior art keywords
parts
silicon carbide
mfre
sintered silicon
containing graphite
Prior art date
Application number
NL6814459A
Other versions
NL146320C (en
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
Publication of NL146320C publication Critical patent/NL146320C/xx
Application filed filed Critical
Priority to NL6814459A priority Critical patent/NL6814459A/en
Publication of NL6814459A publication Critical patent/NL6814459A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
    • H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
    • H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
    • H01C17/0652—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component containing carbon or carbides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/105—Varistor cores
    • H01C7/118—Carbide, e.g. SiC type

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermistors And Varistors (AREA)

Abstract

Sintered silicon carbide varistors for use in transistor radio and T.V. equipment and which are characterised by non ohmic resistance consist essentially of silicon carbide particles 5 to 9 parts (preferably 6 to 8 parts) bonded by ceramic binder, 1 to 5 parts (preferably) 0.1 to 5 parts) and having finely divided copper 0.1 to 1.0 parts (preferably 0.1 to 0.5 parts dispersed in the binder and diffused into the surface of the silicon carbide particles. Addition of graphite powder, 0.1 to 50 particle size to the ceramic mixture in the proportion of 4 to 14% wt. to 86 to 96% wt. of ceramic mix improves the electrical characteristics of the varistor.
NL6814459A 1968-10-09 1968-10-09 Sintered silicon carbide varistors containing graphite mfre NL6814459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL6814459A NL6814459A (en) 1968-10-09 1968-10-09 Sintered silicon carbide varistors containing graphite mfre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6814459A NL6814459A (en) 1968-10-09 1968-10-09 Sintered silicon carbide varistors containing graphite mfre

Publications (2)

Publication Number Publication Date
NL146320C NL146320C (en)
NL6814459A true NL6814459A (en) 1970-04-13

Family

ID=19804890

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6814459A NL6814459A (en) 1968-10-09 1968-10-09 Sintered silicon carbide varistors containing graphite mfre

Country Status (1)

Country Link
NL (1) NL6814459A (en)

Also Published As

Publication number Publication date
NL146320C (en)

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: MATSUSHITA