WO2003042124A1 - Sintered product for thermistor element and method for production thereof, and temperature sensor - Google Patents

Sintered product for thermistor element and method for production thereof, and temperature sensor Download PDF

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Publication number
WO2003042124A1
WO2003042124A1 PCT/JP2002/012006 JP0212006W WO03042124A1 WO 2003042124 A1 WO2003042124 A1 WO 2003042124A1 JP 0212006 W JP0212006 W JP 0212006W WO 03042124 A1 WO03042124 A1 WO 03042124A1
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WIPO (PCT)
Prior art keywords
thermistor element
sintered product
production
temperature sensor
type oxide
Prior art date
Application number
PCT/JP2002/012006
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French (fr)
Japanese (ja)
Inventor
Takaaki Chosokabe
Masaki Iwaya
Naoki Yamada
Original Assignee
Ngk Spark Plug Co., Ltd.
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Filing date
Publication date
Application filed by Ngk Spark Plug Co., Ltd. filed Critical Ngk Spark Plug Co., Ltd.
Publication of WO2003042124A1 publication Critical patent/WO2003042124A1/en

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    • 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
    • C04B35/26—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 ferrites
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
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    • 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
    • C04B35/26—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 ferrites
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
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    • 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
    • C04B35/26—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 ferrites
    • C04B35/2675—Other ferrites containing rare earth metals, e.g. rare earth ferrite garnets
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    • C04B35/44—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 aluminates
    • 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
    • H01C7/02—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 positive temperature coefficient
    • H01C7/022—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 positive temperature coefficient mainly consisting of non-metallic substances
    • H01C7/023—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 positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
    • 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
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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  • Engineering & Computer Science (AREA)
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  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Magnetic Ceramics (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

A sintered product for a thermistor element containing Sr, Y, Mn, Al, Fe, Si and O, characterized in that it contains both crystal phases of a perovskite-type oxide and a garnet-type oxide and also contains at least one crystal phase of a Sr-Al based oxide and a Sr-Fe based oxide. In one embodiment, the crystal phase of the perovskite-type oxide is identified as YFeO3 and/or YAlO3, and the crystal phase of the garnet -type oxide is identified as Y3Al5O12 and/or Y3Al2Fe3O12, by the measurement of powder X-ray diffractometry.
PCT/JP2002/012006 2001-11-16 2002-11-18 Sintered product for thermistor element and method for production thereof, and temperature sensor WO2003042124A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-351714 2001-11-16
JP2001351714 2001-11-16

Publications (1)

Publication Number Publication Date
WO2003042124A1 true WO2003042124A1 (en) 2003-05-22

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PCT/JP2002/012006 WO2003042124A1 (en) 2001-11-16 2002-11-18 Sintered product for thermistor element and method for production thereof, and temperature sensor

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1012405A (en) * 1996-06-24 1998-01-16 Toyota Central Res & Dev Lab Inc Composition for thermistor
EP1137016A1 (en) * 1999-08-30 2001-09-26 Denso Corporation Thermistor device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1012405A (en) * 1996-06-24 1998-01-16 Toyota Central Res & Dev Lab Inc Composition for thermistor
EP1137016A1 (en) * 1999-08-30 2001-09-26 Denso Corporation Thermistor device

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