WO2016178536A3 - Varistor ceramic and method for producing same - Google Patents

Varistor ceramic and method for producing same Download PDF

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Publication number
WO2016178536A3
WO2016178536A3 PCT/KR2016/004758 KR2016004758W WO2016178536A3 WO 2016178536 A3 WO2016178536 A3 WO 2016178536A3 KR 2016004758 W KR2016004758 W KR 2016004758W WO 2016178536 A3 WO2016178536 A3 WO 2016178536A3
Authority
WO
WIPO (PCT)
Prior art keywords
varistor ceramic
producing same
praseodymia
zinc oxide
strontium titanate
Prior art date
Application number
PCT/KR2016/004758
Other languages
French (fr)
Korean (ko)
Other versions
WO2016178536A2 (en
Inventor
이승철
강승진
Original Assignee
주식회사 아모텍
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 주식회사 아모텍 filed Critical 주식회사 아모텍
Publication of WO2016178536A2 publication Critical patent/WO2016178536A2/en
Publication of WO2016178536A3 publication Critical patent/WO2016178536A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/453—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 zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/46—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 titanium oxides or titanates
    • C04B35/462—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 titanium oxides or titanates based on titanates
    • C04B35/465—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/47—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on strontium titanates
    • 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
    • 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
    • H01C7/108—Metal oxide
    • H01C7/112—ZnO type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

Provided is varistor ceramic. The varistor ceramic according to one embodiment of the present invention comprises praseodymia-based zinc oxide and strontium titanate (SrTiO3), wherein the atomic percent of strontium titanate ratio with respect to praseodymia-based zinc oxide is 92-99:8-1. Accordingly, the present invention improves ESD tolerance, has superb electrostatic capacity, and can exhibit stability in a heterojunction.
PCT/KR2016/004758 2015-05-04 2016-05-04 Varistor ceramic and method for producing same WO2016178536A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0062710 2015-05-04
KR1020150062710A KR101948164B1 (en) 2015-05-04 2015-05-04 Varistor ceramic and the preparing method thereof

Publications (2)

Publication Number Publication Date
WO2016178536A2 WO2016178536A2 (en) 2016-11-10
WO2016178536A3 true WO2016178536A3 (en) 2017-01-05

Family

ID=57218160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2016/004758 WO2016178536A2 (en) 2015-05-04 2016-05-04 Varistor ceramic and method for producing same

Country Status (2)

Country Link
KR (1) KR101948164B1 (en)
WO (1) WO2016178536A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635433A (en) * 1995-09-11 1997-06-03 The United States Of America As Represented By The Secretary Of The Army Ceramic ferroelectric composite material-BSTO-ZnO
KR20060011309A (en) * 2004-07-30 2006-02-03 학교법인 동의학원 Dysprosia-doped praseodymia-based zinc oxide varistors and the manufacturing method
KR20090009149A (en) * 2007-07-19 2009-01-22 티디케이가부시기가이샤 Varistor
KR20140044607A (en) * 2012-10-05 2014-04-15 삼성전기주식회사 Dielectric composition and multi-layer ceramic electronic parts fabricated by using the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127801A (en) * 1983-01-11 1984-07-23 マルコン電子株式会社 Varistor and method of producing same
JP3631341B2 (en) * 1996-10-18 2005-03-23 Ｔｄｋ株式会社 Multilayer composite functional element and method for manufacturing the same
JP4292901B2 (en) * 2002-08-20 2009-07-08 株式会社村田製作所 Barista
KR100666188B1 (en) * 2004-11-17 2007-01-09 학교법인 동의학원 Praseodymia-based Zinc Oxide Varistors for High Voltage and Method for Manufacturing the same
JP5782646B2 (en) * 2012-12-13 2015-09-24 Tdk株式会社 Voltage nonlinear resistor ceramic composition and electronic component

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635433A (en) * 1995-09-11 1997-06-03 The United States Of America As Represented By The Secretary Of The Army Ceramic ferroelectric composite material-BSTO-ZnO
KR20060011309A (en) * 2004-07-30 2006-02-03 학교법인 동의학원 Dysprosia-doped praseodymia-based zinc oxide varistors and the manufacturing method
KR20090009149A (en) * 2007-07-19 2009-01-22 티디케이가부시기가이샤 Varistor
KR20140044607A (en) * 2012-10-05 2014-04-15 삼성전기주식회사 Dielectric composition and multi-layer ceramic electronic parts fabricated by using the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JIANG, FENG ET AL.: "Progress on Rare-earth Doped ZnO-based Varistor Materials", JOURNAL OF ADVANCED CERAMICS, vol. 2, no. 3, 2013, pages 201 - 212, XP055340720 *

Also Published As

Publication number Publication date
KR101948164B1 (en) 2019-04-22
KR20160130652A (en) 2016-11-14
WO2016178536A2 (en) 2016-11-10

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