DE69705372D1 - Keramische Zusammensetzung zur Absorption von elektromagnetischen Wellen und Verfahren zu deren Herstellung - Google Patents

Keramische Zusammensetzung zur Absorption von elektromagnetischen Wellen und Verfahren zu deren Herstellung

Info

Publication number
DE69705372D1
DE69705372D1 DE69705372T DE69705372T DE69705372D1 DE 69705372 D1 DE69705372 D1 DE 69705372D1 DE 69705372 T DE69705372 T DE 69705372T DE 69705372 T DE69705372 T DE 69705372T DE 69705372 D1 DE69705372 D1 DE 69705372D1
Authority
DE
Germany
Prior art keywords
absorption
production
electromagnetic waves
ceramic composition
ceramic
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 - Fee Related
Application number
DE69705372T
Other languages
English (en)
Other versions
DE69705372T2 (de
Inventor
Sung-Yong Hong
Chang-Ho Ra
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE69705372D1 publication Critical patent/DE69705372D1/de
Application granted granted Critical
Publication of DE69705372T2 publication Critical patent/DE69705372T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • 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
    • 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
    • C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Magnetic Ceramics (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Soft Magnetic Materials (AREA)
DE69705372T 1996-09-19 1997-01-31 Keramische Zusammensetzung zur Absorption von elektromagnetischen Wellen und Verfahren zu deren Herstellung Expired - Fee Related DE69705372T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960040960A KR100215485B1 (ko) 1996-09-19 1996-09-19 세라믹스 조성물 및 그 제조 방법

Publications (2)

Publication Number Publication Date
DE69705372D1 true DE69705372D1 (de) 2001-08-02
DE69705372T2 DE69705372T2 (de) 2002-05-16

Family

ID=19474459

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69705372T Expired - Fee Related DE69705372T2 (de) 1996-09-19 1997-01-31 Keramische Zusammensetzung zur Absorption von elektromagnetischen Wellen und Verfahren zu deren Herstellung

Country Status (7)

Country Link
EP (1) EP0831074B1 (de)
JP (1) JP2795406B2 (de)
KR (1) KR100215485B1 (de)
CN (1) CN1084311C (de)
DE (1) DE69705372T2 (de)
ES (1) ES2160899T3 (de)
IL (1) IL120061A (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459313B1 (ko) * 1997-07-31 2005-01-17 홍성용 전자기파 흡수체 조성물과 이의 제조방법, 전자기파 흡수용 도료 조성물과 이의 제조방법 및 이의 도포방법
JP2001060790A (ja) * 1999-08-19 2001-03-06 Sony Corp 電波吸収体
JP2001223493A (ja) * 2000-02-08 2001-08-17 Sony Corp 電波吸収体
GB2363909A (en) * 2000-04-26 2002-01-09 Ecoflow Ltd Device for reducing the harmful effects of electromagnetic radiation from a mobile phone.
EP1307944A1 (de) * 2000-08-10 2003-05-07 Hermsdorfer Institut für Technische Keramik e.V. Elektromagnetisches absorbermaterial, verfahren zu dessen herstellung und von abschirmeinrichtungen
DE10039125A1 (de) 2000-08-10 2002-02-21 Colfirmit Rajasil Gmbh & Co Kg Elektromagnetisches Absorbermaterial, Verfahren zu dessen Herstellung und dessen Verwendung
KR20020030232A (ko) * 2000-10-16 2002-04-24 이해진 복합 세라믹 전자파 흡수체의 조성물과 그 제조방법
KR20020026144A (ko) * 2001-12-27 2002-04-06 강신혁 페라이트의 특성을 활용한 건축 마감재와 고에너지적본드자석
KR100456717B1 (ko) * 2002-03-11 2004-11-10 한국지질자원연구원 폐산화철 촉매를 이용한 전파흡수체의 제조방법
JP4339789B2 (ja) * 2002-08-08 2009-10-07 大日本印刷株式会社 電磁波遮蔽用シートおよびその製造方法
KR100940067B1 (ko) 2009-06-19 2010-02-05 (주)세일Tnc 바이오 세라믹 조성물의 제조방법
JP5668722B2 (ja) * 2012-05-22 2015-02-12 株式会社デンソー 可塑成形用組成物および焼成品
CN104658624B (zh) * 2015-01-27 2017-04-12 华东理工大学 辐射屏蔽电子封装材料及其制备方法
CN107879744B (zh) * 2017-12-07 2020-07-24 武汉科技大学 一种原生电磁场SiC-ZnO复合材料及其制备方法
CN108033792B (zh) * 2017-12-07 2020-07-24 武汉科技大学 一种原生电磁场SiC-ZnO耐火浇注料及其制备方法
CN108484155B (zh) * 2018-04-11 2021-08-27 中南大学 一种磁性吸波砖及其制备方法
CN114031121A (zh) * 2021-11-09 2022-02-11 淮北师范大学 一种多孔磁性氧化物纳米片及其制备方法和应用

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441495A (en) * 1977-09-07 1979-04-02 Tdk Corp Wave absorber
US4960642A (en) * 1986-04-17 1990-10-02 The Furukawa Electric Co., Ltd. Pellets for making electromagnetic wave shielding material and method for manufacturing the same
US5441746A (en) * 1989-12-22 1995-08-15 Molecular Bioquest, Inc. Electromagnetic wave absorbing, surface modified magnetic particles for use in medical applications, and their method of production
JPH0480274A (ja) * 1990-07-23 1992-03-13 Tokin Corp 電波吸収体組成物
US5446459A (en) * 1991-08-13 1995-08-29 Korea Institute Of Science And Technology Wide band type electromagnetic wave absorber

Also Published As

Publication number Publication date
CN1084311C (zh) 2002-05-08
DE69705372T2 (de) 2002-05-16
EP0831074A2 (de) 1998-03-25
ES2160899T3 (es) 2001-11-16
EP0831074B1 (de) 2001-06-27
EP0831074A3 (de) 1998-10-07
CN1176949A (zh) 1998-03-25
KR19980021940A (ko) 1998-06-25
KR100215485B1 (ko) 1999-08-16
IL120061A0 (en) 1997-04-15
IL120061A (en) 2000-07-16
JPH10116718A (ja) 1998-05-06
JP2795406B2 (ja) 1998-09-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee