GB1171756A - Improvements relating to a Method of Manufacturing Ceramic Bodies having Positive Temperature Coefficients of Resistivity. - Google Patents

Improvements relating to a Method of Manufacturing Ceramic Bodies having Positive Temperature Coefficients of Resistivity.

Info

Publication number
GB1171756A
GB1171756A GB56451/66A GB5645166A GB1171756A GB 1171756 A GB1171756 A GB 1171756A GB 56451/66 A GB56451/66 A GB 56451/66A GB 5645166 A GB5645166 A GB 5645166A GB 1171756 A GB1171756 A GB 1171756A
Authority
GB
United Kingdom
Prior art keywords
barium titanate
barium
conductive
valency
semi
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
GB56451/66A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1171756A publication Critical patent/GB1171756A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-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
    • H01C7/02Non-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 having positive temperature coefficient
    • H01C7/022Non-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 having positive temperature coefficient mainly consisting of non-metallic substances
    • H01C7/023Non-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 having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
    • H01C7/025Perovskites, e.g. titanates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46Shaped 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
    • C04B35/462Shaped 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
    • C04B35/465Shaped 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
    • C04B35/468Shaped 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 based on barium titanates
    • C04B35/4682Shaped 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 based on barium titanates based on BaTiO3 perovskite phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Compositions Of Oxide Ceramics (AREA)
GB56451/66A 1965-12-18 1966-12-16 Improvements relating to a Method of Manufacturing Ceramic Bodies having Positive Temperature Coefficients of Resistivity. Expired GB1171756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6516534A NL6516534A (enrdf_load_stackoverflow) 1965-12-18 1965-12-18

Publications (1)

Publication Number Publication Date
GB1171756A true GB1171756A (en) 1969-11-26

Family

ID=19794963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56451/66A Expired GB1171756A (en) 1965-12-18 1966-12-16 Improvements relating to a Method of Manufacturing Ceramic Bodies having Positive Temperature Coefficients of Resistivity.

Country Status (8)

Country Link
US (1) US3674713A (enrdf_load_stackoverflow)
AT (1) AT270807B (enrdf_load_stackoverflow)
BE (1) BE691370A (enrdf_load_stackoverflow)
CH (1) CH495609A (enrdf_load_stackoverflow)
FR (1) FR1505751A (enrdf_load_stackoverflow)
GB (1) GB1171756A (enrdf_load_stackoverflow)
NL (1) NL6516534A (enrdf_load_stackoverflow)
SE (1) SE318642B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225781A3 (en) * 1985-12-06 1988-07-20 Hitachi, Ltd. High thermal expansion coefficient ceramic sinter and a composite body of the same and metal

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794949A (en) * 1973-02-01 1974-02-26 Texas Instruments Inc Solid state motor starting apparatus
US3975307A (en) * 1974-10-09 1976-08-17 Matsushita Electric Industrial Co., Ltd. PTC thermistor composition and method of making the same
CN115784736B (zh) * 2022-11-24 2024-01-26 江苏省陶瓷研究所有限公司 一种表面无橘红色斑点、高阻温的ptc加热陶瓷及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225781A3 (en) * 1985-12-06 1988-07-20 Hitachi, Ltd. High thermal expansion coefficient ceramic sinter and a composite body of the same and metal

Also Published As

Publication number Publication date
DE1665226B2 (de) 1975-08-07
US3674713A (en) 1972-07-04
CH495609A (de) 1970-08-31
NL6516534A (enrdf_load_stackoverflow) 1967-06-19
SE318642B (enrdf_load_stackoverflow) 1969-12-15
FR1505751A (fr) 1967-12-15
BE691370A (enrdf_load_stackoverflow) 1967-06-16
AT270807B (de) 1969-05-12
DE1665226A1 (de) 1971-01-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee