JP2006347793A - セラミック構造体の製造方法及びセラミック構造体 - Google Patents
セラミック構造体の製造方法及びセラミック構造体 Download PDFInfo
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- 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
- C04B35/478—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 aluminium titanates
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- 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
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- 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
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Filtering Materials (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
【解決手段】出発原料として、アルミニウム源をAl2O3換算で45質量%以上、そのアルミニウム源のうちベーマイトを5質量%以上、TiO2を30質量%以上含有する混合組成物粉末を、成形、乾燥、1350〜1500℃の温度で焼成し、アルミニウムチタネートからなるセラミック構造体を製造する。
【選択図】なし
Description
表1に示すように、α−アルミナ(平均粒径:5.0μm、BET比表面積:0.8m2/g)、ベーマイト(平均粒径:0.1μm、BET比表面積:163m2/g)、酸化チタン(平均粒径:0.2μm)、高純度カオリン(平均粒径:3μm)を調合・混合することにより、アルミニウムチタネート化原料(AT化原料)を調製した。調製したAT化原料の100質量部に対して、有機バインダー(メチルセルロース、ヒドロキシプロピルメチルセルロース)を1.5質量部添加して、さらに混合・真空脱気した。得られた真空脱気した混合物を石膏型で鋳込み成形して、成形体を得た。得られた成形体を、表2に示した焼成温度でそれぞれ常圧焼成して、AT焼結体を得た。得られた各AT焼結体について、熱膨張係数を測定した。その結果を表2に示す。
表1に示すように、アルミナ(平均粒径:5.0μm、BET比表面積:0.8m2/g)、酸化チタン(平均粒径:0.2μm)、高純度カオリン(平均粒径:3μm)を調合・混合することにより、アルミニウムチタネート化原料(AT化原料)を調製した。調製したAT化原料の100質量部に対して、有機バインダー(メチルセルロース、ヒドロキシプロピルメチルセルロース)を1.5質量部添加して、さらに混合・真空脱気した。得られた真空脱気した混合物を石膏型で鋳込み成形して、成形体を得た。得られた成形体を、表2に示した焼成温度でそれぞれ常圧焼成して、AT焼結体を得た。得られた各AT焼結体について、熱膨張係数を測定した。その結果を表2に示す。
表2に示すように、実施例1及び実施例2では、BET比表面積の大きいベーマイトをアルミニウム源として使用することにより、アルミニウムチタネートの本来の特性を損なうことなく、比較例と比較して、熱膨張係数を小さくすることができた。より低い焼成温度においても低い熱膨張係数を維持できた(また、実施例1及び実施例2では、比較例と比較して、熱膨張係数が小さいセラミック構造体を製造することができた)。
Claims (6)
- 出発原料として、アルミニウム源をAl2O3換算で45質量%以上、そのアルミニウム源のうちベーマイトを5質量%以上、TiO2を30質量%以上含有する混合組成物粉末を、成形、乾燥、1350〜1500℃の温度で焼成し、アルミニウムチタネートからなるセラミック構造体を製造するセラミック構造体の製造方法。
- 前記ベーマイトのBET比表面積が、100m2/g以上である請求項1に記載のセラミック構造体の製造方法。
- 前記アルミニウム源に、アルミナ及び/又は水酸化アルミニウムが更に含有される請求項1又は2に記載のセラミック構造体の製造方法。
- 前記セラミック構造体が、65質量%以上のアルミニウムチタネートの結晶相から構成されている請求項1〜3のいずれか1項に記載のセラミック構造体の製造方法。
- 前記セラミック構造体の40〜800℃間の熱膨張係数が、1.5×10-6/℃以下である請求項1〜4のいずれか1項に記載のセラミック構造体の製造方法。
- 請求項1〜5のいずれか1項に記載のセラミック構造体の製造方法により製造されたセラミック構造体。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005173565A JP4657822B2 (ja) | 2005-06-14 | 2005-06-14 | セラミック構造体の製造方法 |
US11/446,186 US20060281626A1 (en) | 2005-06-14 | 2006-06-05 | Method for manufacturing ceramic structure and the ceramic structure |
DE102006000291.1A DE102006000291B4 (de) | 2005-06-14 | 2006-06-13 | Verfahren zur Herstellung einer keramischen Struktur und keramische Struktur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005173565A JP4657822B2 (ja) | 2005-06-14 | 2005-06-14 | セラミック構造体の製造方法 |
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Publication Number | Publication Date |
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JP2006347793A true JP2006347793A (ja) | 2006-12-28 |
JP4657822B2 JP4657822B2 (ja) | 2011-03-23 |
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Application Number | Title | Priority Date | Filing Date |
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JP2005173565A Expired - Fee Related JP4657822B2 (ja) | 2005-06-14 | 2005-06-14 | セラミック構造体の製造方法 |
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Country | Link |
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US (1) | US20060281626A1 (ja) |
JP (1) | JP4657822B2 (ja) |
DE (1) | DE102006000291B4 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010100510A (ja) * | 2008-01-07 | 2010-05-06 | Sumitomo Chemical Co Ltd | チタン酸アルミニウムセラミックスの製造方法 |
JP2010111547A (ja) * | 2008-11-07 | 2010-05-20 | Sumitomo Chemical Co Ltd | チタン酸アルミニウム系多孔質焼成体の製造方法 |
JP2010138060A (ja) * | 2008-09-04 | 2010-06-24 | Sumitomo Chemical Co Ltd | チタン酸アルミニウム系セラミックスの製造方法 |
DE102010008477A1 (de) | 2009-03-16 | 2010-09-23 | Ngk Insulators, Ltd., Nagoya | Verfahren zur Herstellung einer Aluminiumtitanatkeramik |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112759416B (zh) * | 2021-01-15 | 2023-01-17 | 武汉科技大学 | 一种六铝酸钙/钛酸铝多孔陶瓷及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH06279976A (ja) * | 1993-03-26 | 1994-10-04 | Ngk Insulators Ltd | セラミックス−金属の鋳ぐるみ体及びその製造方法 |
JPH09309722A (ja) * | 1996-05-24 | 1997-12-02 | Shigetada Nakanishi | ダイアスポアを原料とするα−アルミナ粉体およびその製造方法 |
WO2005046840A1 (en) * | 2003-11-04 | 2005-05-26 | Corning Incorporated | Ceramic body based on aluminum titanate |
Family Cites Families (8)
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US3141786A (en) * | 1964-07-21 | Fibrous boehmite alumina molding powder and processes | ||
US4881951A (en) * | 1987-05-27 | 1989-11-21 | Minnesota Mining And Manufacturing Co. | Abrasive grits formed of ceramic containing oxides of aluminum and rare earth metal, method of making and products made therewith |
US5035724A (en) * | 1990-05-09 | 1991-07-30 | Norton Company | Sol-gel alumina shaped bodies |
WO2000040521A1 (en) * | 1998-12-31 | 2000-07-13 | Corning Incorporated | Low sintering temperature cordierite batch and cordierite ceramic produced therefrom |
EP1200369B1 (en) * | 1999-06-11 | 2006-08-16 | Corning Incorporated | Low expansion, high porosity, high strength cordierite body and method |
US6849181B2 (en) * | 2002-07-31 | 2005-02-01 | Corning Incorporated | Mullite-aluminum titanate diesel exhaust filter |
US6677261B1 (en) * | 2002-07-31 | 2004-01-13 | Corning Incorporated | Alumina-bound high strength ceramic honeycombs |
US20060021308A1 (en) * | 2004-07-29 | 2006-02-02 | Merkel Gregory A | Mullite-aluminum titanate body and method for making same |
-
2005
- 2005-06-14 JP JP2005173565A patent/JP4657822B2/ja not_active Expired - Fee Related
-
2006
- 2006-06-05 US US11/446,186 patent/US20060281626A1/en not_active Abandoned
- 2006-06-13 DE DE102006000291.1A patent/DE102006000291B4/de not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06279976A (ja) * | 1993-03-26 | 1994-10-04 | Ngk Insulators Ltd | セラミックス−金属の鋳ぐるみ体及びその製造方法 |
JPH09309722A (ja) * | 1996-05-24 | 1997-12-02 | Shigetada Nakanishi | ダイアスポアを原料とするα−アルミナ粉体およびその製造方法 |
WO2005046840A1 (en) * | 2003-11-04 | 2005-05-26 | Corning Incorporated | Ceramic body based on aluminum titanate |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010100510A (ja) * | 2008-01-07 | 2010-05-06 | Sumitomo Chemical Co Ltd | チタン酸アルミニウムセラミックスの製造方法 |
JP2010138060A (ja) * | 2008-09-04 | 2010-06-24 | Sumitomo Chemical Co Ltd | チタン酸アルミニウム系セラミックスの製造方法 |
JP2010111547A (ja) * | 2008-11-07 | 2010-05-20 | Sumitomo Chemical Co Ltd | チタン酸アルミニウム系多孔質焼成体の製造方法 |
DE102010008477A1 (de) | 2009-03-16 | 2010-09-23 | Ngk Insulators, Ltd., Nagoya | Verfahren zur Herstellung einer Aluminiumtitanatkeramik |
US8409492B2 (en) | 2009-03-16 | 2013-04-02 | Ngk Insulators, Ltd. | Method for producing aluminum titanate ceramic |
DE102010008477B4 (de) * | 2009-03-16 | 2016-09-01 | Ngk Insulators, Ltd. | Verfahren zur Herstellung einer Aluminiumtitanatkeramik |
Also Published As
Publication number | Publication date |
---|---|
US20060281626A1 (en) | 2006-12-14 |
DE102006000291B4 (de) | 2017-08-03 |
DE102006000291A1 (de) | 2006-12-21 |
JP4657822B2 (ja) | 2011-03-23 |
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