KR970065471A - 알루미나 소결체 및 그 제조 방법 - Google Patents

알루미나 소결체 및 그 제조 방법 Download PDF

Info

Publication number
KR970065471A
KR970065471A KR1019970011076A KR19970011076A KR970065471A KR 970065471 A KR970065471 A KR 970065471A KR 1019970011076 A KR1019970011076 A KR 1019970011076A KR 19970011076 A KR19970011076 A KR 19970011076A KR 970065471 A KR970065471 A KR 970065471A
Authority
KR
South Korea
Prior art keywords
oxide
total content
alumina sintered
sintered body
potassium
Prior art date
Application number
KR1019970011076A
Other languages
English (en)
Other versions
KR100213950B1 (ko
Inventor
시게끼 가또
Original Assignee
시바따 마사하루
니뽕 가이시 가부시끼가이샤
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 시바따 마사하루, 니뽕 가이시 가부시끼가이샤 filed Critical 시바따 마사하루
Publication of KR970065471A publication Critical patent/KR970065471A/ko
Application granted granted Critical
Publication of KR100213950B1 publication Critical patent/KR100213950B1/ko

Links

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
    • C04B35/10—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 aluminium oxide
    • C04B35/111—Fine ceramics
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • 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
    • C04B2235/3201—Alkali metal 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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • 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
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint

Landscapes

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

Abstract

초고순도의 미립자로 이루어지는 원료 분말을 사용하지 않고, 반도체 제조 장치에서도 사용 가능한 나트륨 및 칼륨 함유량이 적은 알루미나 소결체를 제공한다.
알루미나 중에 함유되는 불순물인 산화나트륨, 산화칼륨, 산화규소, 산화칼슘, 산화제이철 및 산화티타늄의 합계 함유량이 100ppm 이상, 10000ppm 이하이며, 합계 함유량에 대한 산화나트륨 및 산화칼륨의 합계 함유량의 비율이 4중량% 이하이다. 알루미나 소결체의 원료 분말에 대하여 적어도 산화합물을 첨가하고, 원료 분말중의 금속과 상기 산화합물의 반응에 의해 금속염을 생성시켜 이 금속염을 제거한다.

Description

알루미나 소결체 및 그 제조 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. 알루미나 소결체중에 함유되는 불순물인 산화나트륨, 산화칼륨, 산화규소, 산화칼슘, 산화제이철 및 산화티타늄의 합계 함유량이 100ppm이상, 10000ppm이하이며, 상기 합계 함유량에 대한 산화나트륨 및 산화칼륨의 합계 함유량의 비율이 4중량%이하인 것을 특징으로 하는 알루미나 소결체.
  2. 제1항에 있어서, 상기 합계 함유량에 대한 산화나트륨 및 산화칼륨의 합계 함유량의 비율이 2중량%이하인 것을 특징으로 하는 알루미나 소결체.
  3. 알루미나 소결체중에 함유되는 불순물인 산화나트륨, 산화칼륨, 산화규소, 산화칼슘, 산화제이철 및 산화 티타늄의 합계 함유량이 100ppm이상, 10000ppm이하인 알루미나 소결체를 제조함에 있어서, 알루미나 소결체의 원료 분말에 대하여 적어도 산화합물을 첨가하고, 상기 원료 분말중의 나트륨 및 칼륨과 상기 산화합물의 반응에 의해 금속염을 생성시켜 이 금속염을 제거하는 것을 특징으로 하는 알루미나 소결체의 제조방법.
  4. 제3항에 있어서, 상기 원료 분말에 대하여 상기 산화합물을 성형용 바인더의 성분으로서 첨가하여 혼합하고, 이 혼합물을 성형하는 것을 특징으로 하는 알루미나 소결체의 제조 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970011076A 1996-03-29 1997-03-28 알루미나 소결체 및 그 제조 방법 KR100213950B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8076943A JPH09263440A (ja) 1996-03-29 1996-03-29 アルミナ焼結体およびその製造方法
JP96-76943 1996-03-29

Publications (2)

Publication Number Publication Date
KR970065471A true KR970065471A (ko) 1997-10-13
KR100213950B1 KR100213950B1 (ko) 1999-08-02

Family

ID=13619839

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970011076A KR100213950B1 (ko) 1996-03-29 1997-03-28 알루미나 소결체 및 그 제조 방법

Country Status (6)

Country Link
US (1) US5854159A (ko)
EP (1) EP0798276B1 (ko)
JP (1) JPH09263440A (ko)
KR (1) KR100213950B1 (ko)
DE (1) DE69703944T2 (ko)
TW (1) TW410215B (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2287241A1 (en) * 1998-02-27 1999-09-02 Ngk Spark Plug Co., Ltd. Spark plug, alumina insulator for spark plug, and method of manufacturing the same
ES2154146B1 (es) * 1998-05-19 2001-12-01 Univ Santiago Compostela Procedimiento de purificacion de alumina por reduccion de impurezas a especies volatiles.
US6592695B1 (en) 2000-11-16 2003-07-15 General Electric Company Binder system for ceramic arc discharge lamp
US20040092380A1 (en) * 2002-07-01 2004-05-13 Coorstek, Inc. Aluminum oxide ceramic components and methods
US7304010B2 (en) * 2004-02-23 2007-12-04 Kyocera Corporation Aluminum oxide sintered body, and members using same for semiconductor and liquid crystal manufacturing apparatuses
US20070098611A1 (en) * 2005-10-31 2007-05-03 Yang Xiaolin D Stabilized flash calcined gibbsite as a catalyst support
CN107001148B (zh) * 2014-11-28 2020-03-13 日本碍子株式会社 氧化铝烧结体及光学元件用基底基板
JP2021054676A (ja) * 2019-09-30 2021-04-08 京セラ株式会社 セラミック構造体

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU399487A1 (ru) * 1971-09-20 1973-10-03 Вакуумплотная керамика
DE3140063A1 (de) * 1980-10-09 1982-05-13 Vasipari Kutató Intézet, Budapest Presspulver zur herstellung von korrosionsfesten und/oder verschleissbestaendigen gegenstaenden und unter ihrer verwendung gefertigte presswerkzeuge
HU185474B (en) * 1981-11-10 1985-02-28 Almasfuezitoei Timfoeldgyar Process for preparing alpha-aluminium oxyde poor in alkali for ceramic purposes
JPS63117952A (ja) * 1986-11-07 1988-05-21 呉羽化学工業株式会社 高靭性コランダム−ルチル複合焼結体およびその製造方法
US5382556A (en) * 1992-04-22 1995-01-17 Sumitomo Chemical Company, Limited Translucent polycrystalline alumina and process for producing the same
JP3036367B2 (ja) * 1994-08-19 2000-04-24 住友金属工業株式会社 アルミナ磁器組成物
US5593468A (en) * 1995-07-26 1997-01-14 Saint-Gobain/Norton Industrial Ceramics Corporation Sol-gel alumina abrasives

Also Published As

Publication number Publication date
DE69703944D1 (de) 2001-03-01
US5854159A (en) 1998-12-29
EP0798276A1 (en) 1997-10-01
TW410215B (en) 2000-11-01
DE69703944T2 (de) 2001-06-21
JPH09263440A (ja) 1997-10-07
KR100213950B1 (ko) 1999-08-02
EP0798276B1 (en) 2001-01-24

Similar Documents

Publication Publication Date Title
KR860002840A (ko) 영구 자석합금과 그 제조방법
KR960031394A (ko) 정의 온도저항계수를 갖는 반도체 세라믹 조성물 및 그 제조방법
IL105511A0 (en) 2,4-dioxoimidazolidine derivatives,their preparation and pharmaceutical compositions containing them
JPS64536A (en) Photographic coating composition
KR900011684A (ko) 제어된 기공 및 특성을 갖는 자력지지성 세라믹 복합체의 제조방법
KR860003068A (ko) 스라이드 게이트용 내화물
KR970065471A (ko) 알루미나 소결체 및 그 제조 방법
KR930021577A (ko) 산화알루미늄을 포함하는 금속화 접착성이 우수한 세락믹 성형품
DE60235829D1 (de) Verfahren zur herstellung eines pulverförmigen materials, das pulverförmige material und ein daraus hergestelltes keramikmaterial
KR910007656A (ko) 염소 함유 중합체에 대한 안정화제 조성물 및 그것의 제조방법
KR890015978A (ko) 세라믹성형체 제조용 조성물
KR850004915A (ko) 금속주조용 용제
KR920700170A (ko) 시멘트 경화 촉진제 및 그 제조방법
KR870001884A (ko) 슬라이딩 노즐용 플레이트 내화물의 제조방법
KR850006872A (ko) 질화규소 소결체의 제조방법
EP0530377A4 (en) Semiconductor sealing resin tablet and its manufacture
JPS57168977A (en) Chlorine dioxide releasing compositon
JPS5638401A (en) Iron-copper composite powder and its manufacture
US2469512A (en) Siliceous magnesium-containing purifying medium and process of producing it
JPS6452669A (en) Production of alumina refractory
KR840008789A (ko) 고순도의 질화알루미늄 미분말, 그의 조성물 및 그의 소결체, 및 그들의 제조방법
KR950000209A (ko) 흡착 탈취제의 제조방법
RU2003128306A (ru) Комбинация защитного слоя и слоя катализатора
PL299939A1 (en) Admixtures used for solidification of sludges as well as method of solidifying and method of conditioning sludges
KR910006190A (ko) 세라믹 필타의 제조방법 및 장치

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20020410

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee