GB710079A - Improvements in or relating to partially conductive compositions - Google Patents

Improvements in or relating to partially conductive compositions

Info

Publication number
GB710079A
GB710079A GB13579/50A GB1357950A GB710079A GB 710079 A GB710079 A GB 710079A GB 13579/50 A GB13579/50 A GB 13579/50A GB 1357950 A GB1357950 A GB 1357950A GB 710079 A GB710079 A GB 710079A
Authority
GB
United Kingdom
Prior art keywords
alumina
complex
titania
per cent
sintered
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
GB13579/50A
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.)
Mersen SA
Original Assignee
Carbone Lorraine SA
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 Carbone Lorraine SA filed Critical Carbone Lorraine SA
Publication of GB710079A publication Critical patent/GB710079A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • 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
    • H01C17/06533—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component composed of oxides

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Thermistors And Varistors (AREA)

Abstract

Sintered alumina-titania complexes (see Group V) used in thermistors can be surface metallized with copper, silver, precious metals and stainless alloys by metal vapour condensation, cathodic projection or gum spraying.ALSO:A semi-conductive composition consists of a moulded mixture of titania and alumina combined by reduction in pure hydrogen to form a complex having a negative thermal factor. To render parts made therefrom more robust the sintered mixture is impregnated with a resin, e.g. phenol-formaldehyde, nylon, or a silicone, in an amount up to 10 per cent. The formula of titanium compound in the complex varies between TiO1.67 to TiO1.99. and the proportion of alumina in the complex varies between 0.5 and 99 per cent.
GB13579/50A 1949-06-03 1950-05-31 Improvements in or relating to partially conductive compositions Expired GB710079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR710079X 1949-06-03

Publications (1)

Publication Number Publication Date
GB710079A true GB710079A (en) 1954-06-09

Family

ID=9070127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13579/50A Expired GB710079A (en) 1949-06-03 1950-05-31 Improvements in or relating to partially conductive compositions

Country Status (1)

Country Link
GB (1) GB710079A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456112A (en) * 1967-04-18 1969-07-15 Webb James E Temperature sensitive capacitor device
US5437933A (en) * 1992-02-18 1995-08-01 Johnson Matthey Public Limited Company Coated ceramic article
GB2338478A (en) * 1998-06-15 1999-12-22 South Bank Univ Entpr Ltd Ceramic composites; resonators

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456112A (en) * 1967-04-18 1969-07-15 Webb James E Temperature sensitive capacitor device
US5437933A (en) * 1992-02-18 1995-08-01 Johnson Matthey Public Limited Company Coated ceramic article
GB2338478A (en) * 1998-06-15 1999-12-22 South Bank Univ Entpr Ltd Ceramic composites; resonators
GB2338478B (en) * 1998-06-15 2002-12-24 South Bank Univ Entpr Ltd Ceramic composites

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