JP6469684B2 - チタン酸アルミニウム組成物、それから構成されたセラミック物品、およびその製造方法 - Google Patents
チタン酸アルミニウム組成物、それから構成されたセラミック物品、およびその製造方法 Download PDFInfo
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- JP6469684B2 JP6469684B2 JP2016533520A JP2016533520A JP6469684B2 JP 6469684 B2 JP6469684 B2 JP 6469684B2 JP 2016533520 A JP2016533520 A JP 2016533520A JP 2016533520 A JP2016533520 A JP 2016533520A JP 6469684 B2 JP6469684 B2 JP 6469684B2
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- 239000000919 ceramic Substances 0.000 title claims description 102
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- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 title description 5
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Images
Classifications
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- 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
- C04B35/46—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
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- 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
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Description
3(TiO2のモル%)/(100+Al2O3のモル%)<1.0、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.0
式中、TiO2のモル%=100[(TiO2のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、Al2O3のモル%=100[(Al2O3のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、およびMgOのモル%=100[(MgOのモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、
ZrO2および希土類酸化物の合計は0.5質量%超であり、
Fe2O3の量は0.5質量%未満である、セラミック組成物を開示する。
3(TiO2のモル%)/(100+Al2O3のモル%)<1.0、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.0
式中、TiO2のモル%=100[(TiO2のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、Al2O3のモル%=100[(Al2O3のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、およびMgOのモル%=100[(MgOのモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、
ZrO2および希土類酸化物の合計は0.5質量%超であり、
Fe2O3の量は0.5質量%未満である、セラミック物品も開示する。
3(TiO2のモル%)/(100+Al2O3のモル%)<1.0、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.0
式中、TiO2のモル%=100[(TiO2のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、Al2O3のモル%=100[(Al2O3のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、およびMgOのモル%=100[(MgOのモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、
ZrO2および希土類酸化物の合計は0.5質量%超であり、
Fe2O3の量は0.5質量%未満である、セラミック物品;
に転化させるのに効果的な条件下で、その未焼成体を焼成する工程を有する。
3(TiO2のモル%)/(100+Al2O3のモル%)<1.0、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.0
式中、TiO2のモル%=100[(TiO2のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、Al2O3のモル%=100[(Al2O3のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、およびMgOのモル%=100[(MgOのモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、
ZrO2および希土類酸化物の合計は0.5質量%超であり、
Fe2O3の量は0.5質量%未満である。
3(TiO2のモル%)/(100+Al2O3のモル%)<1.0、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.0
式中、TiO2のモル%=100[(TiO2のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、Al2O3のモル%=100[(Al2O3のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、およびMgOのモル%=100[(MgOのモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、
ZrO2および希土類酸化物の合計は0.5質量%超であり、
Fe2O3の量は0.5質量%未満である。
Claims (7)
- セラミック物品において、
少なくとも50質量%のチアライト相、
ムライトおよびコージエライトから選択される少なくとも1つのケイ酸塩相、
少なくとも1質量%のMgO、
0.1質量%〜3質量%のCeO2を含む、希土類酸化物、および
少なくとも0.1質量%のZrO2
を含み、
該物品の金属酸化物成分が、以下の関係式の少なくとも一方を満たし:
3(TiO2のモル%)/(100+Al2O3のモル%)<1.0、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.0
式中、TiO2のモル%=100[(TiO2のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、Al2O3のモル%=100[(Al2O3のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、およびMgOのモル%=100[(MgOのモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、
ZrO2および前記希土類酸化物の合計は0.5質量%超であり、かつZrO2およびCeO2の合計は少なくとも0.5質量%であり、
Fe2O3の量は0.5質量%未満である、セラミック物品。 - 前記物品の金属酸化物成分が、以下の関係式の少なくとも一方を満たす:
3(TiO2のモル%)/(100+Al2O3のモル%)<0.96、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.04、
請求項1記載のセラミック物品。 - 前記希土類酸化物が、酸化イットリウムおよび酸化ランタンの少なくとも1つをさらに含む、請求項1または2記載のセラミック物品。
- 50〜99質量%のチアライト相、0〜50質量%のムライト、および0〜50質量%のコージエライトの組成を有する、請求項1から3いずれか1項記載のセラミック物品。
- セラミック物品を製造する方法において、
ケイ素含有源、アルミニウム含有源、チタン含有源、マグネシウム含有源、希土類含有源、およびジルコニウム含有源を含む無機バッチ組成物を、可塑剤、滑剤、結合剤、細孔形成剤、および溶媒からなる群より選択される1種類以上の加工助剤と共に混合して、可塑化セラミック前駆体バッチ組成物を形成する工程、
前記可塑化セラミック前駆体バッチ組成物を未焼成体に成形する工程、および
前記未焼成体を、
少なくとも50質量%のチアライト相、
ムライトおよびコージエライトから選択される少なくとも1つのケイ酸塩相、
少なくとも1質量%のMgO、
0.1質量%〜3質量%のCeO2を含む、希土類酸化物、および
少なくとも0.1質量%のZrO2
を含むセラミック物品であって、該物品の金属酸化物成分が、以下の関係式の少なくとも一方を満たし:
3(TiO2のモル%)/(100+Al2O3のモル%)<1.0、および
[2(Al2O3のモル%)+3(MgOのモル%)]/110>1.0
式中、TiO2のモル%=100[(TiO2のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、Al2O3のモル%=100[(Al2O3のモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、およびMgOのモル%=100[(MgOのモル数)/(TiO2のモル数+Al2O3のモル数+MgOのモル数+ZrO2のモル数)]、
ZrO2および前記希土類酸化物の合計は0.5質量%超であり、かつZrO2およびCeO2の合計は少なくとも0.5質量%であり、
Fe2O3の量は0.5質量%未満である、セラミック物品;
に転化させるのに効果的な条件下で、該未焼成体を焼成する工程、
を有してなる方法。 - 0.1質量%〜15質量%のZrO2を含み、かつZrO2およびCeO2の合計は0.5質量%〜17質量%である、請求項1から4いずれか1項記載のセラミック物品。
- 0.1質量%〜15質量%のZrO2を含み、かつZrO2およびCeO2の合計は0.5質量%〜17質量%である、請求項5記載の方法。
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US11891339B2 (en) | 2018-08-31 | 2024-02-06 | Corning Incorporated | Cordierite-indialite-pseudobrookite structured ceramic bodies, batch composition mixtures, and methods of manufacturing ceramic bodies therefrom |
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