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KR950017842A - Manufacturing method of low temperature sintered ferrite for surface mounting - Google Patents

Manufacturing method of low temperature sintered ferrite for surface mounting Download PDF

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Publication number
KR950017842A
KR950017842A KR1019930030637A KR930030637A KR950017842A KR 950017842 A KR950017842 A KR 950017842A KR 1019930030637 A KR1019930030637 A KR 1019930030637A KR 930030637 A KR930030637 A KR 930030637A KR 950017842 A KR950017842 A KR 950017842A
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KR
South Korea
Prior art keywords
surface mounting
low temperature
sintered ferrite
temperature sintered
ferrite
Prior art date
Application number
KR1019930030637A
Other languages
Korean (ko)
Other versions
KR960011351B1 (en
Inventor
김경용
김왕섭
이창호
장광호
Original Assignee
김은영
한국과학기술연구원
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 김은영, 한국과학기술연구원 filed Critical 김은영
Priority to KR1019930030637A priority Critical patent/KR960011351B1/en
Publication of KR950017842A publication Critical patent/KR950017842A/en
Application granted granted Critical
Publication of KR960011351B1 publication Critical patent/KR960011351B1/en

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    • 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
    • C04B35/26—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
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3229—Cerium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Magnetic Ceramics (AREA)

Abstract

본 발명은 노이즈필터나 인덕터등의 재료로 사용되는 표면실장용 저온소결용 페라이트의 제조방법에 관한 것이다. 본 발명은 하소된 페라이트분말에 Bi2O3와 CeO2등의 다른 산화물을 혼합하여 열처리한 액상형성조제를 첨가하여 소결함으로써 제조된다. 이때 액상형성조제를 구성하는 Bi2O3, CeO2, ZrO2, TiO2, SrO, SiO2등의 산화물간의 분율은 상태도상 액상선의 온도가 750∼850℃ 사이인 조성이 바람직하다. 본 발명의 페라이트조성온 저온소결이 가능하고 내부전극인 Ag와 반응하지 않으면 우수한 전기적 특성을 나타낸다.The present invention relates to a method for manufacturing low temperature sintering ferrite for surface mounting used as a material such as a noise filter or an inductor. The present invention is prepared by sintering a calcined ferrite powder by adding a liquid-forming aid obtained by mixing and heating other oxides such as Bi 2 O 3 and CeO 2 . At this time, the composition between the oxides such as Bi 2 O 3 , CeO 2 , ZrO 2 , TiO 2 , SrO, and SiO 2 constituting the liquid-forming aid is preferably a composition having a temperature of the liquidus phase between 750 and 850 ° C. Low temperature sintering of the ferrite composition of the present invention is possible and does not react with Ag, an internal electrode, and shows excellent electrical properties.

Description

표면실장용 저온소결 페라이트의 제조방법Manufacturing method of low temperature sintered ferrite for surface mounting

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (3)

하소된 페라이트 분말에 Bi2O3와 다른 산화물을 혼합하여 열처리하여 안정한 상을 형성시킨 액상형성조제를 첨가하여 소결함을 특징으로 하는 표면실장용 저온소결 페라이트의 제조방법.A method for producing low temperature sintered ferrite for surface mounting, characterized in that the calcined ferrite powder is mixed with Bi 2 O 3 and other oxides, followed by heat treatment to form a stable phase. 제1항에 있어서, 액상형성조제의 Bi2O3와 다른 산화물의 분율은 상태도상 액상선온도가 750∼850℃ 사이인 조성인 것을 특징으로 하는 표면실장용 저온소결 페라이트의 제조방법.The method of manufacturing low-temperature sintered ferrite for surface mounting according to claim 1, wherein the fraction of Bi 2 O 3 and other oxides in the liquid forming aid is in a state in which the liquidus temperature is between 750 ° C and 850 ° C. 제2항에 있어서, 다른 산화물은 CeO2, ZrO2, TiO2, SrO, SiO2, MgO, CuO, CaO, BaO, Al203또는 SnO인 것을 특징으로 하는 표면실장용 저온소결 페라이트의 제조방법.The method of claim 2, wherein the other oxide is CeO 2 , ZrO 2 , TiO 2 , SrO, SiO 2 , MgO, CuO, CaO, BaO, Al 2 0 3 or SnO to prepare low-temperature sintered ferrite Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930030637A 1993-12-29 1993-12-29 Process for the preparation of ferrite KR960011351B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930030637A KR960011351B1 (en) 1993-12-29 1993-12-29 Process for the preparation of ferrite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930030637A KR960011351B1 (en) 1993-12-29 1993-12-29 Process for the preparation of ferrite

Publications (2)

Publication Number Publication Date
KR950017842A true KR950017842A (en) 1995-07-20
KR960011351B1 KR960011351B1 (en) 1996-08-22

Family

ID=19373638

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930030637A KR960011351B1 (en) 1993-12-29 1993-12-29 Process for the preparation of ferrite

Country Status (1)

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KR (1) KR960011351B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191934B1 (en) * 1998-10-02 2001-02-20 Sarnoff Corporation & Co., Ltd. High dielectric constant embedded capacitors

Also Published As

Publication number Publication date
KR960011351B1 (en) 1996-08-22

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