GB1476374A - Oxygen ion transport type thermistors - Google Patents

Oxygen ion transport type thermistors

Info

Publication number
GB1476374A
GB1476374A GB2763174A GB2763174A GB1476374A GB 1476374 A GB1476374 A GB 1476374A GB 2763174 A GB2763174 A GB 2763174A GB 2763174 A GB2763174 A GB 2763174A GB 1476374 A GB1476374 A GB 1476374A
Authority
GB
United Kingdom
Prior art keywords
mixture
oxide
platinum
metal oxide
thermistors
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
GB2763174A
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.)
NIPPON TOKUSHU TOKYO KK
Original Assignee
NIPPON TOKUSHU TOKYO KK
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 NIPPON TOKUSHU TOKYO KK filed Critical NIPPON TOKUSHU TOKYO KK
Publication of GB1476374A publication Critical patent/GB1476374A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01C7/04—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 having negative temperature coefficient
    • H01C7/042—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 having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

1476374 Thermistors NIPPON TOKUSHU TOGYO KK 21 June 1974 [21 June 1973] 27631/74 Heading H1K In an oxygen ion transport type thermistor comprising a solid solution consisting of 50- 95 mol. per cent of an oxide of a tetravalent metal of Group IVB, the lanthanide series or the actinide series and 50-5 mol. per cent of oxide(s) of divalent alkaline earth metals and/or trivalent metals of Group IIIB including the lanthanide rare earth metals and having two metal lead wires embedded therein, the solid solution has a porosity of 7-55%. The porosity, which is preferably 15-35% e.g. 25%, is sufficient to permit an adequate supply of oxygen to the body but not so large as to adversely affect the mechanical strength of the body and the adhesion of the embedded electrodes. The tetravalent metal oxide may be ZrO 2 , CeO 2 , HfO 2 or ThO 2 . The divalent metal oxide may be CaO, MgO or SrO, and the trivalent metal oxide may be La 2 O 3 , Y 2 O 3 , Yb 2 O 3 , Sc 2 O 3 , Gd 2 O 3 or Nd 2 O 3 . The electrodes may be platinum or platinum-rhodium alloy wires. In an example a mixture of powdery ZrO 2 and CaCO 3 has added to it 4% by wt. of an emulsion of equal weight amounts of stearic acid and water and is pulverized for 20 hours. A mould containing the spaced platinum electrode wires is filled with the resulting mixture, the moulded mixture then being pressed at 2,000 Kg/cm.<SP>2</SP> and fired at 1,400-1,800‹ C. in air to produce the thermistors. In another example a spinel of MgO and Al 2 O 3 is added to the mixture as a resistance controlling agent. Numerous examples with the results of tests thereon are given.
GB2763174A 1973-06-21 1974-06-21 Oxygen ion transport type thermistors Expired GB1476374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7049373A JPS5439920B2 (en) 1973-06-21 1973-06-21

Publications (1)

Publication Number Publication Date
GB1476374A true GB1476374A (en) 1977-06-10

Family

ID=13433087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2763174A Expired GB1476374A (en) 1973-06-21 1974-06-21 Oxygen ion transport type thermistors

Country Status (5)

Country Link
US (1) US3913057A (en)
JP (1) JPS5439920B2 (en)
DE (1) DE2429866C3 (en)
FR (1) FR2234639B1 (en)
GB (1) GB1476374A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453400A1 (en) * 1979-04-03 1980-10-31 Licentia Gmbh TEMPERATURE SENSOR WITH RESISTANCE VARIATION FOR CONTROLLING OR REGULATING A HEATING CIRCUIT ACCORDING TO A HIGH TEMPERATURE

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2518894C3 (en) * 1975-04-28 1979-02-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen NTC thermistors for high temperatures
DE2518856C3 (en) * 1975-04-28 1979-03-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen NTC thermistors for high temperatures
DE2518865C3 (en) * 1975-04-28 1979-03-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen NTC thermistors for high temperatures
US4308178A (en) * 1979-09-17 1981-12-29 North American Philips Consumer Electronics Corp. Thermionic cathode emitter coating
US4324702A (en) * 1979-11-02 1982-04-13 Matsushita Electric Industrial Co., Ltd. Oxide thermistor compositions
EP0207994B1 (en) * 1984-11-08 1991-02-20 Matsushita Electric Industrial Co., Ltd. Oxide semiconductor for thermistor and a method of producing the same
US4677415A (en) * 1985-05-08 1987-06-30 Motorola, Inc. Ceramic humidity sensor
US4743881A (en) * 1985-05-08 1988-05-10 Motorola, Inc. Ceramic temperature sensor
US4647895A (en) * 1985-05-08 1987-03-03 Motorola, Inc. Ceramic temperature sensor
DE3733193C1 (en) * 1987-10-01 1988-11-24 Bosch Gmbh Robert NTC temperature sensor and process for the production of NTC temperature sensor elements
GB2236750B (en) * 1989-09-08 1993-11-17 United Technologies Corp Ceramic material and insulating coating made thereof
JPH04357165A (en) * 1991-05-29 1992-12-10 Ngk Insulators Ltd Zirconia porcelain and electrochemical element using the same
DE19621934A1 (en) * 1996-05-31 1997-12-04 Philips Patentverwaltung Rare earth high temperature thermistor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976505A (en) * 1958-02-24 1961-03-21 Westinghouse Electric Corp Thermistors
US3044968A (en) * 1958-05-13 1962-07-17 Westinghouse Electric Corp Positive temperature coefficient thermistor materials
DE1130022B (en) * 1959-06-10 1962-05-24 Westmghouse Electric Corporation East Pittsburgh, Pa (V St A) Thermoelectric device
US3377561A (en) * 1965-07-13 1968-04-09 Bell Telephone Labor Inc Positive temperature coefficient titanate thermistor
DE2139828C3 (en) * 1971-08-09 1974-02-14 Jenaer Glaswerk Schott & Gen., 6500 Mainz Temperature measuring resistor with high thermal shock resistance made of glass ceramic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453400A1 (en) * 1979-04-03 1980-10-31 Licentia Gmbh TEMPERATURE SENSOR WITH RESISTANCE VARIATION FOR CONTROLLING OR REGULATING A HEATING CIRCUIT ACCORDING TO A HIGH TEMPERATURE

Also Published As

Publication number Publication date
US3913057A (en) 1975-10-14
JPS5018961A (en) 1975-02-27
DE2429866B2 (en) 1980-04-03
JPS5439920B2 (en) 1979-11-30
DE2429866A1 (en) 1975-01-16
DE2429866C3 (en) 1980-11-27
FR2234639B1 (en) 1980-03-14
FR2234639A1 (en) 1975-01-17

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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