JP2010537930A - 未焼成体から多孔質セラミック物品に焼成する方法 - Google Patents
未焼成体から多孔質セラミック物品に焼成する方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/16—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 silicates other than clay
- C04B35/18—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 silicates other than clay rich in aluminium oxide
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
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- 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
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B2003/203—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded for multi-channelled structures, e.g. honeycomb structures
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6565—Cooling rate
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Filtering Materials (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
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- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
無機成分を含めたセラミック形成原料を含む未焼成体を、第1の平均速度で初期温度からピーク温度まで加熱する工程において、前記ピーク温度が、セラミック相が形成されるよりも高温である工程と、
前記未焼成体を、第2の平均速度で前記ピーク温度から第2の温度まで冷却する工程において、前記第2の温度が、前記セラミック相が形成される温度範囲である工程と、
平均して第2の温度で、セラミック相を形成するのに十分な時間、前記未焼成体を保持することにより、多孔質のセラミック物品を形成する工程と、
を有してなる方法を開示する。ピーク温度は第2の温度よりも少なくとも5℃高い。多孔質のコージエライトの形成に適した一部の実施の形態では、ピーク温度は1430〜1440℃であり、第2の温度は1415〜1430℃であり、ピーク温度は第2の温度よりも少なくとも5℃高い。
無機セラミック形成成分からなる未焼成体を提供し、
前記未焼成体を、高速昇温段階およびそれに続く保持段階を含めた焼成雰囲気に曝露することによって加熱する、
各工程を有してなり、
前記保持段階における前記焼成雰囲気の温度が浸漬温度の上限値から浸漬温度の下限値の間に保たれ、
前記高速昇温段階がピーク部分を含み、前記ピーク部分における前記焼成雰囲気の温度がピーク部分におけるすべての時点において前記浸漬温度の上限値よりも大きく、
前記ピーク部分がピーク温度を含み、前記浸漬温度の上限値が前記ピーク温度よりも少なくとも5℃低い。ピーク温度は、非晶質相のガラス転移温度よりも高く、セラミックの融点温度よりも低いことが好ましく、一部の実施の形態では、ピーク温度は、セラミック材料の主要固体結晶相の融点よりも約10℃以上低く、他の実施の形態では、ピーク温度は、セラミック材料の主要固体結晶相の融点よりも約10〜20℃低く、他の実施の形態では、ピーク温度は1420℃以上、1435℃以下である。一部の実施の形態では、浸漬温度の上限値はピーク温度よりも少なくとも10℃低く、他の実施の形態では、ピーク温度よりも少なくとも15℃低く、一部の実施の形態では1430℃未満であり、他の実施の形態では1420℃未満である。一部の実施の形態では、保持段階における保持温度は1300 〜1430℃の間にとどまり、一部の実施の形態では1380 〜1430℃であり、一部の実施の形態では1380〜1420℃であり、他の実施の形態では1300〜1400℃であり、さらに他の実施の形態では1350〜1400℃であり、これらは、それぞれ浸漬温度の下限値および上限値に対応させることができる。保持段階における焼成雰囲気の温度は、セラミック材料の主要固体結晶相を形成するのに十分な保持時間で、浸漬温度の上限値から下限値の範囲に保たれる。無機成分の1つが無機成分の最も低い融点温度を有し、高速昇温段階における焼成雰囲気は、無機成分の最も低い融点温度で、無機成分を高速昇温段階で少なくともある程度溶融させるのに十分な時間、1つ以上の温度に保たれることが好ましい。
本発明の他の特性および利点は次の説明および添付の特許請求の範囲から明らかになるであろう。
Claims (5)
- 多孔質セラミック材料の物品の製造方法であって、
無機セラミック形成成分からなる未焼成体を提供する工程と、
前記未焼成体を、高速昇温段階とそれに続く保持段階を含む焼成雰囲気に曝露することにより加熱する工程と、
を有してなり、
前記保持段階における前記焼成雰囲気の温度が、浸漬温度の上限値と浸漬温度の下限値の間に保たれ、
前記高速昇温段階がピーク部分を含み、該ピーク部分における前記焼成雰囲気の温度が前記浸漬温度の上限値よりも高く、
前記ピーク部分がピーク温度を含み、前記浸漬温度の上限値が前記ピーク温度よりも少なくとも5℃低いことを特徴とする方法。 - 前記ピーク温度が非晶質相のガラス転移温度よりも高く、前記材料の融点温度未満であることを特徴とする請求項1記載の方法。
- 前記ピーク温度が1420℃以上、1435℃以下であることを特徴とする請求項1記載の方法。
- 前記高速昇温段階における焼成雰囲気が、30℃/時間よりも速い昇温速度で、1200℃の初期温度から前記ピーク温度まで上昇することを特徴とする請求項1記載の方法。
- 前記高速昇温段階における焼成雰囲気が、5時間未満で、1200℃の初期温度から前記ピーク温度まで上昇することを特徴とする請求項1記載の方法。
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US96721907P | 2007-08-31 | 2007-08-31 | |
US60/967,219 | 2007-08-31 | ||
PCT/US2008/010229 WO2009029276A1 (en) | 2007-08-31 | 2008-08-28 | Method of firing green bodies into porous ceramic articles |
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JP2010537930A true JP2010537930A (ja) | 2010-12-09 |
JP2010537930A5 JP2010537930A5 (ja) | 2013-03-28 |
JP5276107B2 JP5276107B2 (ja) | 2013-08-28 |
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US (1) | US8187525B2 (ja) |
EP (1) | EP2183199B1 (ja) |
JP (1) | JP5276107B2 (ja) |
CN (1) | CN101808957B (ja) |
AT (1) | ATE500209T1 (ja) |
DE (1) | DE602008005321D1 (ja) |
WO (1) | WO2009029276A1 (ja) |
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2008
- 2008-08-27 US US12/229,828 patent/US8187525B2/en active Active
- 2008-08-28 JP JP2010522960A patent/JP5276107B2/ja not_active Expired - Fee Related
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- 2008-08-28 WO PCT/US2008/010229 patent/WO2009029276A1/en active Application Filing
- 2008-08-28 EP EP08795681A patent/EP2183199B1/en not_active Not-in-force
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JP2015522504A (ja) * | 2012-05-16 | 2015-08-06 | コーニング インコーポレイテッド | 一回焼成二段ソーキング法 |
Also Published As
Publication number | Publication date |
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US20090062105A1 (en) | 2009-03-05 |
DE602008005321D1 (de) | 2011-04-14 |
EP2183199A1 (en) | 2010-05-12 |
ATE500209T1 (de) | 2011-03-15 |
EP2183199B1 (en) | 2011-03-02 |
JP5276107B2 (ja) | 2013-08-28 |
CN101808957B (zh) | 2013-06-05 |
WO2009029276A1 (en) | 2009-03-05 |
US8187525B2 (en) | 2012-05-29 |
CN101808957A (zh) | 2010-08-18 |
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