KR100960769B1 - 알루미늄 티타네이트-계 세라믹 제품 - Google Patents
알루미늄 티타네이트-계 세라믹 제품 Download PDFInfo
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- KR100960769B1 KR100960769B1 KR1020057001770A KR20057001770A KR100960769B1 KR 100960769 B1 KR100960769 B1 KR 100960769B1 KR 1020057001770 A KR1020057001770 A KR 1020057001770A KR 20057001770 A KR20057001770 A KR 20057001770A KR 100960769 B1 KR100960769 B1 KR 100960769B1
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- 239000000919 ceramic Substances 0.000 title claims abstract description 33
- 229910000505 Al2TiO5 Inorganic materials 0.000 title claims abstract description 15
- 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 claims abstract description 15
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 41
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 35
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 13
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
Claims (32)
- u(Al2O3-TiO2) + v(R) + w(3Al2O3-2SiO2) + x(Al2O3) + y(SiO2) + z(1.1SrO-1.5Al2O3-13.6SiO2-TiO2) + a(Fe2O3-TiO 2) + b(MgO-2TiO2)를 포함하는 조성을 가지며, 여기서, R은 SrO-Al2O3-2SiO2 또는 11.2SrO-10.9Al2O3 -24.1SiO2-TiO2이고, u, v, w, x, y, z, a 및 b는 각 성분의 중량분율로서, (u+v+w+x+y+z+a+b=1)이고, 0.5<u≤0.95, 0.01<v≤0.5, 0.01<w≤0.5, 0<x≤0.5, 0<y≤0.1, 0<z≤0.5, 0<a≤0.3, 및 0<b≤0.3인 것을 특징으로 하는 세라믹 제품.
- 제1항에 있어서, 상기 R은 SrO-Al2O3-2SiO2인 것을 특징으로 하는 세라믹 제품.
- 제1항에 있어서, 상기 R은 11.2SrO-10.9Al2O3-24.1SiO2-TiO2인 것을 특징으로 하는 세라믹 제품.
- 제1항에 따른 세라믹 제품과 전방 입구말단에서 출구 말단으로 바디를 가로지르는 평행한 말단-플러그된 다수의 셀 체널을 포함하는 플러그된, 월-플로우 허니컴 필터 바디를 포함하는 디젤 입상 필터.
- 제4항에 있어서, 상기 디젤 입상 필터는 실온 내지 800℃-1000℃의 온도에서 측정된 바에 따라, 15×10-7/℃ 미만의 CTE를 갖는 것을 특징으로 하는 디젤 입상 필터.
- 제4항에 있어서, 상기 디젤 입상 필터는 30부피% 내지 50부피%의 기공률을 갖는 것을 특징으로 하는 디젤 입상 필터.
- 제4항에 있어서, 상기 디젤 입상 필터는 5 내지 25마이크로미터의 평균 기공 크기를 갖는 것을 특징으로 하는 디젤 입상 필터.
- 제4항에 있어서, 상기 디젤 입상 필터는 200cpsi의 셀밀도 및 0.016인치의 두께를 갖는 벽을 갖는 150 내지 400psi의 셀형 바(bar) 상에서 측정된 바에 따라, 1점의 곡강도를 갖는 것을 특징으로 하는 디젤 입상 필터.
- 제4항에 있어서, 상기 디젤 입상 필터는 적어도 0.20×10-12㎡의 투과도를 갖는 것을 특징으로 하는 디젤 입상 필터.
- 제4항에 있어서, 상기 디젤 입상 필터는 평방 인치당 273셀 밀도 및 0.015인치의 셀 벽 두께에 대해서 최대 5g/L의 인공 탄소 수트 하중 및 분당 210의 표준 입방 피트(scfm)의 유속에서 5kPa 또는 그 미만의 압력강하(pressure drop)를 갖는 것을 특징으로 하는 디젤 입상 필터.
- (a) 실리카, 알루미나, 스트론튬, 티타니아, 및 산화철의 소스를 포함하는 무기 원료 물질의 배치(batch)를 가소제, 윤활제, 바인더, 및 용매로서 물을 포함하는 유기 가공제(organic processing)와 함께 제형화하고 혼합하여 균질하고 가소화된 혼합물을 형성시키는 단계;(b) 상기 가소화된 혼합물을 그린 바디로 성형시키는 단계; 및(c) 상기 그린 바디를 30-50시간의 주기(period) 동안 1100-1650℃ 사이의 온도 및 시간을 유지시키면서 여러가지(various) 온도 간격에 걸쳐 20-40℃/hr에서 가열하여 u(Al2O3-TiO2) + v(R) + w(3Al2O3-2SiO2) + x(Al2O3) + y(SiO2) + z(1.1SrO-1.5Al2O3-13.6SiO2-TiO2) + a(Fe2O3-TiO2) + b(MgO-2TiO2)를 포함하는 조성을 갖는 세라믹을 형성시키는 단계, 여기서, R은 SrO-Al2O3-2SiO2 또는 11.2SrO-10.9Al2O3-24.1SiO2-TiO2이고, u, v, w, x, y, z, a 및 b는 각 성분의 중량분율로서, (u+v+w+x+y+z+a+b=1)이고, 0.5<u≤0.95, 0.01<v≤0.5, 0.01<w≤0.5, 0<x≤0.5, 0<y≤0.1, 0<z≤0.5, 0<a≤0.3, 및 0<b≤0.3임;를 포함하는 것을 특징으로 하는 알루미늄 티타네이트-계 세라믹 바디의 제조방법.
- 제11항에 있어서, 상기 가열은 1100-1500℃의 온도에서 수행되는 것을 특징으로 하는 방법.
- 제11항에 있어서, 상기 성형은 압출에 의해 수행되는 것을 특징으로 하는 방법.
- 제13항에 있어서, 상기 가소화된 혼합물은 허니컴 그린 바디로 압출되는 것을 특징으로 하는 방법.
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US40024802P | 2002-07-31 | 2002-07-31 | |
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US (1) | US7001861B2 (ko) |
EP (1) | EP1558545B1 (ko) |
JP (1) | JP4750415B2 (ko) |
KR (1) | KR100960769B1 (ko) |
CN (1) | CN1323981C (ko) |
AU (1) | AU2003249236A1 (ko) |
WO (1) | WO2004011386A1 (ko) |
ZA (1) | ZA200500853B (ko) |
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US20040092381A1 (en) | 2004-05-13 |
CN1323981C (zh) | 2007-07-04 |
ZA200500853B (en) | 2005-12-28 |
KR20050032579A (ko) | 2005-04-07 |
EP1558545A1 (en) | 2005-08-03 |
JP2005534597A (ja) | 2005-11-17 |
US7001861B2 (en) | 2006-02-21 |
EP1558545A4 (en) | 2009-10-21 |
AU2003249236A1 (en) | 2004-02-16 |
EP1558545B1 (en) | 2016-02-03 |
WO2004011386A1 (en) | 2004-02-05 |
CN1684924A (zh) | 2005-10-19 |
JP4750415B2 (ja) | 2011-08-17 |
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