BRPI0409138A - pós nanoporosos ultrafinos de alfa-alumina e processo de preparação dos mesmos através de secagem dos mesmos através de secagem por congelamento - Google Patents

pós nanoporosos ultrafinos de alfa-alumina e processo de preparação dos mesmos através de secagem dos mesmos através de secagem por congelamento

Info

Publication number
BRPI0409138A
BRPI0409138A BRPI0409138-8A BRPI0409138A BRPI0409138A BR PI0409138 A BRPI0409138 A BR PI0409138A BR PI0409138 A BRPI0409138 A BR PI0409138A BR PI0409138 A BRPI0409138 A BR PI0409138A
Authority
BR
Brazil
Prior art keywords
alumina
powders
drying
preparing
nanoporous
Prior art date
Application number
BRPI0409138-8A
Other languages
English (en)
Inventor
Yuhu Wang
Original Assignee
Saint Gobain Ceramics
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 Saint Gobain Ceramics filed Critical Saint Gobain Ceramics
Publication of BRPI0409138A publication Critical patent/BRPI0409138A/pt

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C01F7/021—After-treatment of oxides or hydroxides
    • C01F7/023—Grinding, deagglomeration or disintegration
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1409—Abrasive particles per se
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1454—Abrasive powders, suspensions and pastes for polishing
    • C09K3/1463—Aqueous liquid suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/16—Pore diameter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

"PóS NANOPOROSOS ULTRAFINOS DE ALFA-ALUMINA E PROCESSO DE PREPARAçãO DOS MESMOS ATRAVéS DE SECAGEM POR CONGELAMENTO". A presente invenção fornece pós nanoporosos de <244>-alumina contendo partículas primárias de <244>-alumina tendo um tamanho médio de partícula menor do que cerca de 100 nm e um arranjo interpenetrado por poros ou vazios. A invenção fornece também pós nanométricos de <244>-alumina contendo partículas de <244>-alumina tendo um tamanho médio de partícula menor do que cerca de 100 nm e lamas, particularmente lamas aquosas, que contêm os pós nanométricos de <244>-alumina da invenção. A invenção fornece ainda métodos de fabricação de pós nanoporosos de <244>-alumina e pós nanométricos de <244>-alumina da invenção e métodos de polimento usando as lamas da invenção.
BRPI0409138-8A 2003-04-02 2004-03-31 pós nanoporosos ultrafinos de alfa-alumina e processo de preparação dos mesmos através de secagem dos mesmos através de secagem por congelamento BRPI0409138A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/406,060 US20040198584A1 (en) 2003-04-02 2003-04-02 Nanoporous ultrafine alpha-alumina powders and freeze drying process of preparing same
PCT/US2004/010255 WO2004089828A2 (en) 2003-04-02 2004-03-31 Nanoporous ultrafine alpha-alumina powders and freeze drying process of preparing the same

Publications (1)

Publication Number Publication Date
BRPI0409138A true BRPI0409138A (pt) 2006-03-28

Family

ID=33097238

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0409138-8A BRPI0409138A (pt) 2003-04-02 2004-03-31 pós nanoporosos ultrafinos de alfa-alumina e processo de preparação dos mesmos através de secagem dos mesmos através de secagem por congelamento

Country Status (13)

Country Link
US (2) US20040198584A1 (pt)
EP (1) EP1608593B1 (pt)
JP (1) JP4347884B2 (pt)
KR (1) KR100726113B1 (pt)
CN (1) CN1856443B (pt)
AU (1) AU2004228649B2 (pt)
BR (1) BRPI0409138A (pt)
CA (1) CA2519420C (pt)
MX (1) MXPA05010568A (pt)
NZ (1) NZ542626A (pt)
RU (1) RU2299179C2 (pt)
WO (1) WO2004089828A2 (pt)
ZA (1) ZA200507850B (pt)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467811B1 (ko) * 2002-01-04 2005-01-24 주식회사 엘지화학 α-알루미나 나노입자의 제조방법
US7141086B2 (en) * 2002-06-03 2006-11-28 Ricoh Company, Ltd. Abrasive grain and method for producing it, polishing tool and method for producing it, grinding wheel and method for producing it, and polishing apparatus
US7422730B2 (en) * 2003-04-02 2008-09-09 Saint-Gobain Ceramics & Plastics, Inc. Nanoporous ultrafine α-alumina powders and sol-gel process of preparing same
DE102005039435A1 (de) * 2005-08-18 2007-03-01 Clariant International Limited Verfahren zur Herstellung von mit Silanen oberflächenmodifiziertem Nanokorund
US8021451B2 (en) * 2005-07-25 2011-09-20 Sumitomo Chemical Company, Limited Fine α-alumina particle
US20070068901A1 (en) * 2005-09-29 2007-03-29 Wang Yuchun Composition and method for enhancing pot life of hydrogen peroxide-containing CMP slurries
US7955519B2 (en) * 2005-09-30 2011-06-07 Cabot Microelectronics Corporation Composition and method for planarizing surfaces
CN100364892C (zh) * 2006-06-29 2008-01-30 上海东升新材料有限公司 一种超细白云石的制备方法
US7998866B2 (en) * 2006-09-05 2011-08-16 Cabot Microelectronics Corporation Silicon carbide polishing method utilizing water-soluble oxidizers
RU2336984C2 (ru) * 2006-09-25 2008-10-27 Институт сверхтвердых материалов им. В.Н. Бакуля НАН Украины Способ отделочной обработки
RU2462416C2 (ru) 2007-01-15 2012-09-27 Сэнт-Гобэн Керамикс Энд Пластикс, Инк. Керамический порошковый материал (варианты) и способ его изготовления
KR100843190B1 (ko) * 2007-08-01 2008-07-02 요업기술원 저온 동결건조에 의한 나노 산화아연의 제조방법
JP2010537681A (ja) * 2007-08-31 2010-12-09 キトジム エスアー 中空器官又は中空器官の一部の生体内での再建を促進するためのプロテーゼ
KR100879127B1 (ko) 2007-11-01 2009-01-20 재단법인서울대학교산학협력재단 동결성형을 이용한 다공체의 기공 제어방법 및 그에 의해제조된 다공체
CN101429050B (zh) * 2008-12-04 2011-04-13 北京航空航天大学 一种采用冷冻干燥法制备具有定向结构多孔陶瓷的方法
RU2418830C1 (ru) * 2009-10-05 2011-05-20 Альберт Львович Щипицын Сырьевая смесь для получения термостойких неорганических пигментов, способ получения термостойких неорганических пигментов и устройство для его осуществления
JP2011203991A (ja) * 2010-03-25 2011-10-13 Sony Corp 情報処理装置、情報処理方法、およびプログラム
TWI495713B (zh) * 2010-04-28 2015-08-11 日本百考基股份有限公司 藍寶石研磨用漿體及藍寶石之研磨方法
CN101824279B (zh) * 2010-05-10 2013-01-23 上海高纳粉体技术有限公司 高精度氧化铝抛光粉及其生产方法
ES2374479B1 (es) * 2010-08-06 2012-12-26 Universitat De Valencia Procedimiento de obtención de corindón nanocristalino a partir de alumbres naturales o sintéticos.
WO2012021259A1 (en) 2010-08-09 2012-02-16 W. R. Grace & Co.-Conn. Attrition resistant supports for fischer-tropsch catalysts and process for making the same
US8492306B2 (en) * 2011-10-04 2013-07-23 GM Global Technology Operations LLC Method and apparatus for preparing a catalyst
ITMI20121634A1 (it) * 2012-10-01 2014-04-02 Fond Istituto Italiano Di Tecnologia Materiale composito comprendente allumina porosa anodica ed una matrice polimerica, e suo uso per il restauro dentale
US9581042B2 (en) * 2012-10-30 2017-02-28 United Technologies Corporation Composite article having metal-containing layer with phase-specific seed particles and method therefor
JP2016507454A (ja) * 2012-12-28 2016-03-10 アルベマール・ユーロプ・エスピーアールエル 研磨アルミナの新規な製造方法
KR101592633B1 (ko) * 2013-08-12 2016-02-11 나노폴리(주) 정수기
CN103693664B (zh) * 2013-12-11 2015-12-30 北京世纪地和控股有限公司 一种利用沉淀法制备抛光氧化铝的方法
KR101579890B1 (ko) * 2014-09-22 2015-12-23 한국세라믹기술원 나노사이즈의 고분산성 α-알루미나의 합성방법 및 이에 의해 합성된 절연성 고열전도성 α-알루미나졸
CN105060918A (zh) * 2015-07-30 2015-11-18 湖北工业大学 一种高开口气孔率α晶型纳米氧化铝多孔陶瓷及其制备方法
US10688621B2 (en) * 2016-08-04 2020-06-23 Rohm And Haas Electronic Materials Cmp Holdings, Inc. Low-defect-porous polishing pad
EP3582932B1 (en) 2017-02-15 2022-03-30 Saint-Gobain Ceramics&Plastics, Inc. Alumina abrasive particles used for automotive finishing compositions
CN112708928B (zh) * 2019-10-25 2021-10-08 中国石油化工股份有限公司 一种氧化铝晶粒及其制备方法
CN112980334B (zh) * 2021-03-03 2021-12-31 杭州智华杰科技有限公司 一种提高氧化铝抛光粉悬浮性的方法
CN116655392B (zh) * 2022-04-21 2024-10-11 苏州瑞瓷新材料科技有限公司 一种制备氧化铝浆料的方法及制成的氧化铝浆料在制备生瓷片中的应用
CN117923880A (zh) * 2024-01-10 2024-04-26 安徽丙威新材料科技有限公司 一种α-Al2O3制备方法
CN118879104A (zh) * 2024-09-26 2024-11-01 浙江柔荷新能源材料有限公司 一种高固含量低粘度改性氧化铝浆料的制备方法
CN120483212B (zh) * 2025-07-15 2025-09-30 山东嘉盛博纳环保科技有限公司 一种醇铝盐制备高纯氧化铝的方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US98529A (en) * 1870-01-04 Improvement in cartridge-loading apparatus
SU72505A1 (ru) * 1941-12-15 1947-11-30 И.В. Гребенщиков Способ получени шлифовального материала
US4657754A (en) * 1985-11-21 1987-04-14 Norton Company Aluminum oxide powders and process
EP0281265B1 (en) * 1987-02-26 1992-08-05 Sumitomo Chemical Company, Limited Process for preparing easily mono-dispersible alumina
US5085671A (en) * 1990-05-02 1992-02-04 Minnesota Mining And Manufacturing Company Method of coating alumina particles with refractory material, abrasive particles made by the method and abrasive products containing the same
US6258137B1 (en) * 1992-02-05 2001-07-10 Saint-Gobain Industrial Ceramics, Inc. CMP products
AU650382B2 (en) 1992-02-05 1994-06-16 Norton Company Nano-sized alpha alumina particles
US5312791A (en) * 1992-08-21 1994-05-17 Saint Gobain/Norton Industrial Ceramics Corp. Process for the preparation of ceramic flakes, fibers, and grains from ceramic sols
US5626715A (en) * 1993-02-05 1997-05-06 Lsi Logic Corporation Methods of polishing semiconductor substrates
US5389352A (en) 1993-07-21 1995-02-14 Rodel, Inc. Oxide particles and method for producing them
US5516347A (en) * 1995-04-05 1996-05-14 Saint-Gobain/Norton Industrial Ceramics Corp. Modified alpha alumina particles
KR100759182B1 (ko) * 1996-09-30 2007-09-14 히다치 가세고교 가부시끼가이샤 산화세륨 입자
US6194317B1 (en) * 1998-04-30 2001-02-27 3M Innovative Properties Company Method of planarizing the upper surface of a semiconductor wafer
MY117813A (en) * 1998-01-08 2004-08-30 Nissan Chemical Ind Ltd Alumina powder, process for producing the same and polishing composition.
DE19922492A1 (de) 1999-05-14 2000-11-16 Fraunhofer Ges Forschung Verfahren zur Herstellugn von Aluminiumoxiden und daraus hergestellten Produkten
TW530030B (en) * 1999-08-16 2003-05-01 Nat Science Council The manufacturing process of untrafine alpha-Al2O3 powders
EP1252248A1 (en) * 1999-12-14 2002-10-30 Rodel Holdings, Inc. Polishing compositions for noble metals
US6364920B1 (en) * 2000-04-21 2002-04-02 Saint-Gobain Ceramics & Plastics, Inc. CMP formulations
US6391072B1 (en) * 2000-05-04 2002-05-21 Saint-Gobain Industrial Ceramics, Inc. Abrasive grain
DE10035679A1 (de) * 2000-07-21 2002-01-31 Inst Neue Mat Gemein Gmbh Nanoskalige Korundpulver, daraus gefertigte Sinterkörper und Verfahren zu deren Herstellung
US6399528B1 (en) 2000-09-01 2002-06-04 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Porous aluminum oxide structures and processes for their production
US6596042B1 (en) 2001-11-16 2003-07-22 Ferro Corporation Method of forming particles for use in chemical-mechanical polishing slurries and the particles formed by the process
US7422730B2 (en) * 2003-04-02 2008-09-09 Saint-Gobain Ceramics & Plastics, Inc. Nanoporous ultrafine α-alumina powders and sol-gel process of preparing same

Also Published As

Publication number Publication date
KR100726113B1 (ko) 2007-06-12
US8080231B2 (en) 2011-12-20
US20040198584A1 (en) 2004-10-07
WO2004089828A3 (en) 2005-02-10
EP1608593B1 (en) 2016-10-26
JP2006522005A (ja) 2006-09-28
CN1856443B (zh) 2011-09-07
CN1856443A (zh) 2006-11-01
AU2004228649A1 (en) 2004-10-21
EP1608593A2 (en) 2005-12-28
RU2299179C2 (ru) 2007-05-20
NZ542626A (en) 2009-01-31
MXPA05010568A (es) 2005-12-14
WO2004089828A2 (en) 2004-10-21
RU2005130530A (ru) 2006-03-10
ZA200507850B (en) 2006-10-25
KR20050121231A (ko) 2005-12-26
AU2004228649B2 (en) 2006-11-16
CA2519420A1 (en) 2004-10-21
JP4347884B2 (ja) 2009-10-21
US20050135995A1 (en) 2005-06-23
CA2519420C (en) 2009-05-26

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Legal Events

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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