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1. 发明授权

US06391813B1 Low sintering temperature cordierite batch and cordierite ceramic produced therefrom 失效
标题翻译：低烧结温度由其生产的堇青石和堇青石陶瓷
公开(公告)号：US06391813B1
公开(公告)日：2002-05-21
申请号：US09473376
申请日：1999-12-28
申请人： Gregory A. Merkel
发明人： Gregory A. Merkel
IPC分类号： C04B35195
CPC分类号： C04B35/195 , C04B38/0006 , C04B2111/00129 , C04B2111/0081 , C04B2111/325
摘要： The invention is directed at sintered ceramic articles exhibiting a primary crystalline phase of cordierite and an analytical oxide composition, in weight percent, of 44-53% SiO2, 30-38 Al2O3, 11-16% MgO and 0.05 to 10% of a metal oxide. The ceramic article exhibits a coefficient of thermal expansion in at least one direction no greater than about 15.0×10−7° C. over the temperature range of about 25° C. to about 800° C. The sum of the weight percentages of residual mullite, corundum, and spinel, as measured by X-ray diffractometry of the crushed and powdered body, is not greater than 15%. Furthermore, the invention discloses a method of producing the aforementioned ceramic body, comprising (a) selecting a raw material batch mixture for forming the cordierite ceramic body, comprising two or more compounds which serve as an alumina source, a silica source and a magnesia source, and at least one metal oxide source in an amount to result in the cordierite body comprising, on an analytical oxide basis, in weight percent, between about 0.05-10% of the metal oxide; (b) adding an organic binder system to the inorganic mixture and forming the mixture into a green body; (c) drying the green body and thereafter firing the green body at a time and at a temperature no greater than about 1300° C. to result in sintered ceramic body. Preferred metal oxide sources include the oxides or oxide-forming compounds of the metals selected from the group consisting of molybdenum, tungsten, bismuth, copper, yttrium, lanthanide metals and boron.
摘要翻译：本发明涉及显示堇青石的主结晶相和分析氧化物组合物的烧结陶瓷制品，其重量百分比为44-53％SiO 2，30-38 Al 2 O 3，11-16％MgO和0.05至10％的金属氧化物。在约25℃至约800℃的温度范围内，陶瓷制品在至少一个方向上显示不大于约15.0×10-7℃的热膨胀系数。残余莫来石的重量百分比之和，刚玉和尖晶石，通过粉碎和粉碎体的X射线衍射测量，不大于15％。此外，本发明公开了一种制造上述陶瓷体的方法，包括（a）选择用于形成堇青石陶瓷体的原料分批混合物，其包含两种或更多种用作氧化铝源的化合物，二氧化硅源和氧化镁源，并且导致堇青石体的量的至少一种金属氧化物源以分析氧化物为基准，以重量百分比计包含约0.05-10％的金属氧化物;（b）将有机粘合剂体系加入到无机混合物并将混合物形成生坯;（c）干燥生坯，然后在不大于约1300℃的温度下煅烧生坯以产生烧结陶瓷体。优选的金属氧化物源包括选自钼，钨，铋，铜，钇，镧系元素金属和硼中的金属的氧化物或氧化物形成化合物。

2. 发明授权

US06589465B2 Method for producing ceramic honeycomb structural body 失效
公开(公告)号：US06589465B2
公开(公告)日：2003-07-08
申请号：US09958711
申请日：2002-01-17
申请人： Kazuhiko Kumazawa , Yasushi Noguchi
发明人： Kazuhiko Kumazawa , Yasushi Noguchi
IPC分类号： C04B35195
CPC分类号： C04B38/0006 , C04B35/195 , C04B35/626 , C04B35/6263 , C04B35/62655 , C04B35/63 , C04B35/632 , C04B2111/00129 , C04B2235/3217 , C04B2235/3218 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/449 , C04B2235/5436 , C04B2235/6021 , C04B2235/606 , C04B2235/77 , C04B2235/9607 , C04B2235/9615
摘要： The raw materials for forming a cordierite composition are dissolved into water with a dispersing agent to prepare a slurry, and the thus prepared slurry is passed through the sieve having a mesh of 45 &mgr;m or less. After that, the slurry after sieving is dried by means of the spray drying to obtain dry powders, and the batch for forming is obtained by using the dry powders. Or, the batch for forming is obtained by the filter pressing. That is to say, the batch for forming is obtained by using the raw material powders which are passed through the sieve in a wet state. Therefore, it is possible to prevent agglutination of the raw material particles and to remove the coarse raw material particles effectively. As a result, if the extrusion molding is performed by using the thus obtained batch for forming, it is possible to form the ceramic honeycomb structural body having an extremely thin wall thickness with no defects.

3. 发明授权

US06541407B2 Cordierite body 有权
公开(公告)号：US06541407B2
公开(公告)日：2003-04-01
申请号：US09867321
申请日：2001-05-29
申请人： Douglas M. Beall , David L. Hickman , Gregory A. Merkel
发明人： Douglas M. Beall , David L. Hickman , Gregory A. Merkel
IPC分类号： C04B35195
CPC分类号： C04B38/0051 , B01D39/2068 , C04B35/195 , C04B38/00 , C04B2111/00793 , F01N3/022 , F01N2330/06 , Y10S55/30 , C04B38/0006 , C04B38/0054 , C04B38/0074 , C04B38/0067
摘要： A ceramic comprising predominately a cordierite-type phase approximating the stoichiometry Mg2Al4Si5O18 and having a coefficient of thermal expansion (25-800° C.) of greater than 4×10−7/° C. and less than 13×10−7/° C. and a permeability and a pore size distribution which satisfy the relation 2.108 (permeability)+18.511 (total pore volume)+0.1863 (percentage of total pore volume comprised of pores between 4 and 40 micrometers)>24.6. The ceramic is suitable in the fabrication of cellular, wall-flow, diesel particulate filters having a pressure drop in kPa that at an artificial carbon soot loading of 5 grams/liter and a flow rate of 26 scfm is less than 8.9−0.035 (number of cells per square inch)+300 (cell wall thickness in inches), a bulk filter density of at least 0.60 g/cm3 and a volumetric heat capacity of at least 0.67 J cm−3 K−1 as measured at 500° C.

4. 发明授权

US06562284B2 Fabrication of ultra-thinwall cordierite structures 有权
标题翻译：超薄壁堇青石结构的制作
公开(公告)号：US06562284B2
公开(公告)日：2003-05-13
申请号：US10027993
申请日：2001-12-19
申请人： Douglas M. Beall , Gregory A. Merkel , Brian E. Stutts
发明人： Douglas M. Beall , Gregory A. Merkel , Brian E. Stutts
IPC分类号： C04B35195
CPC分类号： C04B38/0006 , C04B35/195 , C04B35/63 , C04B35/632 , C04B35/636 , C04B2235/3217 , C04B2235/3218 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/449 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/9615
摘要： This invention relates to a method of producing a honeycomb ceramic body exhibiting a predetermined radial dimension comprising producing a green ceramic honeycomb body that exhibits a radial dimension at least 9% greater than the predetermined radial dimension and a cell density of at least 500 cpsi. The method further involves shrinking the green body during firing to form a sintered honeycomb ceramic body exhibiting the final predetermined radial dimension. This invention also relates to a method of producing a ceramic body comprising the following steps: (a) compounding and plasticizing a ceramic raw material mixture and forming the plasticizable raw material mixture into a green ceramic body by extrusion through an extrusion die; (b) drying the green body and thereafter firing the green body at a time and at a temperature sufficient to sinter the ceramic body resulting in a radial shrinkage of the green ceramic body in the radial dimension due to the firing of at least 9%.
摘要翻译：本发明涉及一种生产具有预定径向尺寸的蜂窝状陶瓷体的方法，其包括生产呈现比预定径向尺寸大至少9％的径向尺寸和至少500cpsi的泡孔密度的生陶瓷蜂窝体。该方法还包括在焙烧期间收缩生坯以形成呈现最终预定径向尺寸的烧结蜂窝陶瓷体。本发明还涉及一种陶瓷体的制造方法，其特征在于包括以下步骤：（a）将陶瓷原料混合物进行配混和塑化，并通过挤出模挤出将可塑性原料混合物形成生坯陶瓷体;（b）干燥生坯，然后在足以烧结陶瓷体的时间和温度下焙烧生坯，导致由于烧制至少9％，生坯陶瓷体在径向尺寸上的径向收缩。

5. 发明授权

US06436332B1 Low loss glass ceramic composition with modifiable dielectric constant 失效
标题翻译：具有可变介电常数的低损耗玻璃陶瓷组合物
公开(公告)号：US06436332B1
公开(公告)日：2002-08-20
申请号：US09705139
申请日：2000-11-02
申请人： Benjamin V. Fasano , Robert A. Rita
发明人： Benjamin V. Fasano , Robert A. Rita
IPC分类号： C04B35195
CPC分类号： C03C14/004 , C03C2214/08 , C03C2214/20 , H05K1/0306 , Y10T428/24926
摘要： The dielectric constant of low loss tangent glass-ceramic compositions, such as cordierite-based glass ceramics, is modified over a range by selective addition of high dielectric constant ceramics, such as titanates, tantalates and carbides and metals, such as copper. The low loss tangent is retained or improved over a range of frequencies, and the low CTE of the glass-ceramic is maintained. BaTiO3, SrTiO3 and Ta2O5 produce the most effective results.
摘要翻译：通过选择性地添加高介电常数陶瓷，例如钛酸盐，钽酸盐，碳化物和金属如铜，可以在一定范围内改变低损耗相切玻璃 - 陶瓷组合物的介电常数，例如堇青石系玻璃陶瓷。在一定范围的频率范围内保持或改善低损耗角正切，保持玻璃陶瓷的低CTE。 BaTiO3，SrTiO3和Ta2O5产生最有效的结果。

6. 发明授权

US06265334B1 Ceramic sintered product and process for producing the same 有权
标题翻译：陶瓷烧结产品及其制造方法
公开(公告)号：US06265334B1
公开(公告)日：2001-07-24
申请号：US09177977
申请日：1998-10-22
申请人： Yoshihisa Sechi , Masahiro Sato , Hiroshi Aida , Shoji Kohsaka
发明人： Yoshihisa Sechi , Masahiro Sato , Hiroshi Aida , Shoji Kohsaka
IPC分类号： C04B35195
CPC分类号： H01L23/15 , C04B35/195 , H01L2924/0002 , H01L2924/00
摘要： Low thermal expansion ceramics contains a cordierite crystal phase, wherein a phase of a crystalline compound containing at least one element selected from the group consisting of an alkaline earth element other than Mg, a rare earth element, Ga and In, is precipitated in the grain boundaries of said crystal phase, said ceramics has a relative density of not smaller than 95%, a coefficient of thermal expansion of not larger than 1×10−6/° C. at 10 to 40° C., and a Young's modulus of not smaller than 130 GPa. That is, the ceramics has a small coefficient of thermal expansion, is deformed very little depending upon a change in the temperature, has a very high Young's modulus and is highly rigid and is resistance against external force such as vibration. Accordingly, the ceramics is very useful as a member for supporting a wafer or an optical system is a lithography apparatus that forms high resolution circuit patterns on a silicon wafer.
摘要翻译：低热膨胀陶瓷含有堇青石结晶相，其中含有选自Mg以外的碱土金属元素，稀土元素，Ga和In中的至少一种元素的结晶化合物的相析出在晶粒中所述结晶相的边界，所述陶瓷的相对密度不低于95％，热膨胀系数在10〜40℃不大于1×10 -6 /℃，杨氏模量不小于超过130 GPa。也就是说，陶瓷具有小的热膨胀系数，根据温度的变化而变形很小，具有非常高的杨氏模量，并且是高度刚性的并且是抗外力如振动的抵抗力。因此，陶瓷作为用于支撑晶片的部件是非常有用的，或者光学系统是在硅晶片上形成高分辨率电路图案的光刻设备。

7. 发明授权

US06818580B2 Honeycomb ceramics structure body and method for producing the same 有权
标题翻译：蜂窝陶瓷结构体及其制造方法
公开(公告)号：US06818580B2
公开(公告)日：2004-11-16
申请号：US10312140
申请日：2002-12-23
申请人： Kazuhiko Kumazawa , Yasushi Noguchi , Hideaki Nishi , Hiroyuki Suenobu
发明人： Kazuhiko Kumazawa , Yasushi Noguchi , Hideaki Nishi , Hiroyuki Suenobu
IPC分类号： C04B35195
CPC分类号： C04B38/06 , C04B35/195 , C04B35/62665 , C04B38/0006 , C04B2111/00793 , C04B2235/3206 , C04B2235/3217 , C04B2235/3218 , C04B2235/3232 , C04B2235/3272 , C04B2235/3418 , C04B2235/3445 , C04B2235/3463 , C04B2235/349 , C04B2235/5436 , C04B2235/9607 , Y10S55/05 , Y10S55/30 , Y10T428/24149 , C04B38/0054 , C04B38/0074 , C04B38/067
摘要： A ceramics structure body having chemical composition of 42 to 56 wt % of SiO2, 30 to 45 wt % of Al2O3 and 12 to 16 wt % of MgO, crystalline phase mainly composed of cordierite, a porosity of 55 to 65%, an average pore size of 15 to 30 &mgr;m; and the total area of pores exposed on surfaces of partition walls constituting the honeycomb ceramics structure body being 35% or more of the total area of partition wall surfaces. Fifteen to 25 wt % of graphite and 5 to 15 wt % of a synthetic resin are added as a pore forming agent to a cordierite-forming raw material; the resultant is kneaded and molded into a honeycomb shape; and the resultant is dried and fired to produce above-mentioned honeycomb ceramics structure body. According to this honeycomb ceramics structure body, a low pressure loss and a high collection efficiency can be attained.
摘要翻译：化学组成为SiO 2为42〜56重量％，Al 2 O 3为30〜45重量％，MgO为12〜16重量％的化学组成的陶瓷结构体，主要由堇青石构成的结晶相，孔隙率为55〜65％，平均孔大小15〜30mum; 并且构成蜂窝陶瓷结构体的隔壁的表面露出的孔的总面积为隔壁面的总面积的35％以上。将15〜25重量％的石墨和5〜15重量％的合成树脂作为成孔剂加入到形成堇青石的原料中; 将所得物捏合并成型为蜂窝状; 将所得物干燥并烧制，制成上述蜂窝陶瓷结构体。根据该蜂窝陶瓷结构体，可以获得低的压力损失和高的收集效率。

8. 发明授权

US06291379B1 Process for production of cordierite-based ceramic honeycomb structure 有权
标题翻译：堇青石陶瓷蜂窝结构生产工艺
公开(公告)号：US06291379B1
公开(公告)日：2001-09-18
申请号：US09493206
申请日：2000-01-28
申请人： Yasushi Noguchi , Kyoko Makino , Wataru Kotani
发明人： Yasushi Noguchi , Kyoko Makino , Wataru Kotani
IPC分类号： C04B35195
CPC分类号： B01J21/14
摘要： A process for producing a cordierite-based ceramic honeycomb structure, includes kneading raw materials for cordierite with a forming aid to obtain a raw material batch, subjecting the raw material batch to obtain a honeycomb structure, and subjecting the honeycomb structure to drying and firing in this order to obtain a ceramic honeycomb structure whose crystal phase is composed mainly of cordierite. The raw material batch contains 65% by weight or more of raw materials for cordierite, comprising talc, kaolin and aluminum hydroxide and having crystal water. The kaolin has an average particle diameter of 5 &mgr;or more and a BET specific surface area of 10 m2/g or less and is contained in the raw material batch in an amount of 10% or more by weight. Formability during extruding, particularly lubricity and shape stability, are improved, for producing cordierite-based ceramic honeycomb structure having thin partition walls and high cell density, and improved mechanical strength (isostatic fracture strength) and improved catalyst coatability.
摘要翻译：一种堇青石系陶瓷蜂窝结构体的制造方法，其特征在于，将堇青石的原料与成形助剂混炼，得到原料批料，对原料批料进行处理，得到蜂窝结构体，使蜂窝结构物进行干燥烧成这是为了得到其结晶相主要由堇青石组成的陶瓷蜂窝结构体。原料批料含有65重量％以上的堇青石原料，包括滑石，高岭土和氢氧化铝，并具有结晶水。所述高岭土的平均粒径为5μm以上，BET比表面积为10m 2 / g以下，原料成分含有10重量％以上。改善挤出时的成形性，特别是润滑性和形状稳定性，用于生产具有薄隔壁和高泡孔密度以及改进的机械强度（等静压断裂强度）和改进的催化剂涂覆性的堇青石基陶瓷蜂窝结构体。

9. 发明授权

US06284693B1 Fabrication of ultra low thermal expansion cordierite structures 有权
标题翻译：超低热膨胀堇青石结构的制造
公开(公告)号：US06284693B1
公开(公告)日：2001-09-04
申请号：US09451309
申请日：1999-11-30
申请人： Douglas M. Beall , Gregory A. Merkel
发明人： Douglas M. Beall , Gregory A. Merkel
IPC分类号： C04B35195
CPC分类号： C04B35/195 , C04B35/6263 , C04B35/63 , C04B35/632 , C04B35/634 , C04B35/6365 , C04B38/0006 , C04B2111/00129 , C04B2111/0025 , C04B2111/0037 , C04B2111/0081 , C04B2111/32 , C04B2235/3206 , C04B2235/3217 , C04B2235/3218 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/449 , C04B2235/5292 , C04B2235/5296 , C04B2235/5409 , C04B2235/5445 , C04B2235/77 , C04B2235/96 , C04B2235/9607 , F01N3/2828 , F01N2330/06 , Y10T428/24149
摘要： Disclosed is sintered ceramic article that exhibits a primary crystalline phase of cordierite and analytical oxide composition, in weight percent, of 49-53% SiO2, 33-38% Al2O3, 12-16% MgO and exhibits a coefficient of thermal expansion no greater than about 4.0×10−7/° C. over the temperature range of about 25° C. to about 800° C. and a transverse-I ratio of not less than about 0.92. Also disclosed is a method for producing a sintered cordierite ceramic article involving preparing a plasticizable raw material, comprising a magnesium source, a SiO2-forming source and an additional component of either: (a) a clay-free, Al2O3-forming source having a surface area of greater than about 5 m2/g; or, (b) a clay and Al2O3-forming source combination wherein the clay comprises no greater than about 30%, by weight, of the total inorganic mixture, and the Al2O3-forming source exhibits a surface area of greater than about 40 m2/g. The mixture is formed into a green body substrate of the desired configuration and subsequently dried and fired for a time and at temperature sufficient to form a structure having the aforementioned CTE and I-ratio properties.
摘要翻译：公开了烧结陶瓷制品，其显示堇青石的主结晶相和分析氧化物组合物，其重量百分比为49-53％SiO 2，33-38％Al 2 O 3，12-16％MgO，并且显示出不大于在约25℃至约800℃的温度范围内为约4.0×10 -7 /℃，横I比不小于约0.92。还公开了一种生产堇青石烧结体烧结体的方法，包括制备可塑性原料，包括镁源，形成SiO 2的源和另外的组分：（a）不含粘土的Al 2 O 3形成源，其具有表面积大于约5m2 / g; 或（b）粘土和Al 2 O 3形成源组合，其中粘土占总无机混合物的不大于约30重量％，并且Al 2 O 3形成源的表面积大于约40m 2 / G。将混合物形成为所需构型的生坯基材，随后干燥并焙烧一段时间并在足以形成具有上述CTE和I比率性质的结构的温度下进行烧制。

10. 发明授权

US06284188B1 Process for producing cordierite honeycomb structural body and honeycomb structural body molding aid 有权
标题翻译：堇青石蜂窝结构体和蜂窝结构体成型助剂的生产工艺
公开(公告)号：US06284188B1
公开(公告)日：2001-09-04
申请号：US09348013
申请日：1999-07-06
申请人： Yosiyasu Andou , Kazuhiko Koike , Tomohiko Nakanishi
发明人： Yosiyasu Andou , Kazuhiko Koike , Tomohiko Nakanishi
IPC分类号： C04B35195
CPC分类号： C04B38/0006 , C04B35/195 , C04B35/632 , C04B35/63488
摘要： There is provided a process for obtaining a cordierite honeycomb structural body with thin cell walls and no molding defects such as cell breakage or the like. Cell breakage is prevented by limiting the maximum particle size of the cordierite starting material powder to no greater than 85% of the slit width of the extrusion molding die so that the starting material particles will not clog inside the slits or the introduction port of the slits. As one cordierite starting material, talc with a mean particle size of 5 &mgr;m or greater is used to give a honeycomb structural body with a void volume of greater than 30%, for production of a honeycomb structural body, with good moldability, having a small thickness and a low heat capacity. It is preferred to add to the starting material at least a lubricant/humectant, a binder and/or a mixture of a water-soluble polyhydric alcohol derivative and a polyhydric alcohol.
摘要翻译：提供了一种获得具有细胞壁的堇青石蜂窝结构体并且没有诸如细胞破裂等的成型缺陷的方法。通过将堇青石原料粉末的最大粒径限制在挤出成型模具的狭缝宽度的不大于85％的方式防止细胞破裂，使得原料颗粒不会堵塞狭缝或缝隙的引入口。作为一种堇青石原料，使用平均粒径为5μm以上的滑石，得到空孔体积大于30％的蜂窝结构体，制造蜂窝结构体，成形性好，成型性小厚度和低热容量。优选至少添加润滑剂/保湿剂，粘合剂和/或水溶性多元醇衍生物和多元醇的混合物的原料。

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