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    Composite ceramic body
    1.
    发明授权
    Composite ceramic body 有权
    复合陶瓷体

    公开(公告)号：US08389429B2

    公开(公告)日：2013-03-05

    申请号：US12487111

    申请日：2009-06-18

    申请人： Kazuhiko Koike ,  Masayuki Kobayashi

    发明人： Kazuhiko Koike ,  Masayuki Kobayashi

    IPC分类号： C04B35/488

    CPC分类号： C04B35/119 ,  B82Y30/00 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/96 ,  G01N27/4073

    摘要： A composite ceramic body with increased strength is disclosed. The composite ceramic body, composed of a matrix of alumina particles with a mean particle diameter ranging from 0.7 to 1.8 μm and nano-zirconia particles with a particle diameter of 0.15 μm or less, wherein the alumina particles and the nano-zirconia particles fall in a respective weight percentage ratio ranging from 80:20 to 95:5 with a relative density of 93% or more and wherein in a cross section, a total sum of surface areas of pores, having cross-sectional areas equal to or greater than surface areas of circles having the same diameters as a mean particle diameter of the alumina particles, falls in a value of 2.2% or less based on a whole of the cross-sectional areas.

    摘要翻译： 公开了一种具有增强强度的复合陶瓷体。 复合陶瓷体由平均粒径为0.7〜1.8μm的氧化铝粒子和粒径为0.15μm以下的纳米氧化锆粒子构成，其中氧化铝粒子和纳米氧化锆粒子落入 各自的重量百分比比范围为80:20至95:5，相对密度为93％或更高，其中在横截面中，具有等于或大于表面的截面积的孔的表面积总和 具有与氧化铝颗粒的平均粒径相同的直径的圆的面积相对于整个横截面积为2.2％以下的值。

    COMPOSITE CERAMIC BODY
    2.
    发明申请
    COMPOSITE CERAMIC BODY 有权
    复合陶瓷体

    公开(公告)号：US20090318281A1

    公开(公告)日：2009-12-24

    申请号：US12487111

    申请日：2009-06-18

    申请人： Kazuhiko Koike ,  Masayuki Kobayashi

    发明人： Kazuhiko Koike ,  Masayuki Kobayashi

    IPC分类号： C04B35/48

    CPC分类号： C04B35/119 ,  B82Y30/00 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/96 ,  G01N27/4073

    摘要： A composite ceramic body with increased strength is disclosed.The composite ceramic body, composed of a matrix of alumina particles with a mean particle diameter ranging from 0.7 to 1.8 μm and nano-zirconia particles with a particle diameter of 0.15 μm or less, wherein the alumina particles and the nano-zirconia particles fall in a respective weight percentage ratio ranging from 80:20 to 95:5 with a relative density of 93% or more and wherein in a cross section, a total sum of surface areas of pores, having cross-sectional areas equal to or greater than surface areas of circles having the same diameters as a mean particle diameter of the alumina particles, falls in a value of 2.2% or less based on a whole of the cross-sectional areas.

    摘要翻译： 公开了一种具有增强强度的复合陶瓷体。 该复合陶瓷体由平均粒径为0.7〜1.8μm的氧化铝粒子和粒径为0.15μm以下的纳米氧化锆粒子构成，其中氧化铝粒子和纳米氧化锆粒子落入 各自的重量百分比比范围为80:20至95:5，相对密度为93％或更高，其中在横截面中，具有等于或大于表面的截面积的孔的表面积总和 具有与氧化铝颗粒的平均粒径相同的直径的圆的面积相对于整个横截面积为2.2％以下的值。

    GAS SENSING ELEMENT WITH INCREASED MECHANICAL STRENGTH
    3.
    发明申请
    GAS SENSING ELEMENT WITH INCREASED MECHANICAL STRENGTH 审中-公开
    具有增加机械强度的气体感应元件

    公开(公告)号：US20090000352A1

    公开(公告)日：2009-01-01

    申请号：US12145917

    申请日：2008-06-25

    申请人： Kazuhiko Koike ,  Akio Tanaka

    发明人： Kazuhiko Koike ,  Akio Tanaka

    IPC分类号： G01N7/06

    CPC分类号： G01N27/406

    摘要： A gas sensing element for detecting a specified gas concentration in measuring gases is disclosed. The gas sensing element has at least a surface layer portion formed with an alumina composite sintered body having a principal component of alumina. The alumina composite sintered body contains alumina particles and dispersion particles, dispersed in a boundary between the alumina particles or in the alumina particles, which have an average particle diameter smaller than that of the alumina particles. The dispersion particles have particle-to-particle distances with an average of 4 μm or less and a standard deviation of 1.8 or less. The dispersion particles have particle diameters with an average of 0.2 μm or less and a standard deviation of 0.05 or less.

    摘要翻译： 公开了一种用于检测测量气体中特定气体浓度的气体传感元件。 气体传感元件至少具有由主要成分为氧化铝的氧化铝复合烧结体形成的表面层部分。 氧化铝复合烧结体包含分散在平均粒径小于氧化铝颗粒的氧化铝颗粒或氧化铝颗粒之间的边界的氧化铝颗粒和分散颗粒。 分散颗粒具有平均4μm或更小并且标准偏差为1.8或更小的粒子间距离。 分散粒子的平均粒径为0.2μm以下，标准偏差为0.05以下。

    Needle-shaped ceramic body, needle-shaped ceramic catalyst body and method for producing same
    5.
    发明申请
    Needle-shaped ceramic body, needle-shaped ceramic catalyst body and method for producing same 失效
    针状陶瓷体，针状陶瓷催化剂体及其制造方法

    公开(公告)号：US20070254804A1

    公开(公告)日：2007-11-01

    申请号：US10582957

    申请日：2004-12-13

    申请人： Jayaseelan Daniel Doni ,  Hideki Kita ,  Naoki Kondo ,  Shunkichi Ueno ,  Tatsuki Ohji ,  Shuzo Kanzaki ,  Kazuhiko Koike ,  Takumi Suzawa ,  Tomohiko Nakanishi

    发明人： Jayaseelan Daniel Doni ,  Hideki Kita ,  Naoki Kondo ,  Shunkichi Ueno ,  Tatsuki Ohji ,  Shuzo Kanzaki ,  Kazuhiko Koike ,  Takumi Suzawa ,  Tomohiko Nakanishi

    IPC分类号： B01J21/04 ,  B01J23/00

    CPC分类号： F01N3/2825 ,  B01J21/14 ,  B01J35/04 ,  B01J37/0009 ,  C01B33/26 ,  C04B35/195 ,  C04B38/0006 ,  C04B2111/0081 ,  F01N2370/02

    摘要： The present invention provides a needle-shaped ceramic body and needle-shaped ceramic catalyst body in which a case material is a high specific surface area porous cordierite body that is stable at high temperatures, and also provides methods of producing this needle-shaped ceramic body and needle-shaped ceramic catalyst body. The present invention relates to a needle-shaped ceramic body and needle-shaped ceramic catalyst body in which a base material is a high temperature-stable, high specific surface area porous cordierite body comprising a porous structure having a prescribed porosity and formed of a needle-shaped cordierite crystal phase and further relates to methods of producing this needle-shaped ceramic body and needle-shaped ceramic catalyst body, and by using porous cordierite constituted of needle-shaped crystals as a catalyst-supporting honeycomb structure, the present invention is able to inhibit sintering-induced reduction in the specific surface area. Since a honeycomb can be directly produced as the cordierite sinter itself, an inexpensive product can be provided through the simplifying the prior-art step of coating the interior of the honeycomb.

    摘要翻译： 本发明提供一种针状陶瓷体和针状陶瓷催化剂体，其中壳材是高温下稳定的高比表面积的多孔堇青石体，并且还提供了制造该针状陶瓷体的方法 和针状陶瓷催化剂体。 本发明涉及一种针状陶瓷体和针状陶瓷催化剂体，其中基材为高温稳定，高比表面积的多孔堇青石体，其包含具有预定孔隙率的多孔结构，并由针形成 形堇青石结晶相，进一步涉及该针状陶瓷体和针状陶瓷催化剂体的制造方法，通过使用由针状晶体构成的多孔堇青石作为催化剂负载蜂窝结构体，本发明能够 以抑制烧结诱导的比表面积的还原。 由于蜂窝状体可以直接生产为堇青石烧结体本身，所以可以通过简化涂覆蜂窝内部的现有技术的步骤来提供便宜的产品。

    Honeycomb-shaped cordierite catalyst carrier and method for producing the same
    6.
    发明授权
    Honeycomb-shaped cordierite catalyst carrier and method for producing the same 有权
    蜂窝状堇青石催化剂载体及其制备方法

    公开(公告)号：US06203882B1

    公开(公告)日：2001-03-20

    申请号：US09239299

    申请日：1999-01-29

    申请人： Kazuhiko Koike ,  Kojiro Tokuda ,  Tomohiko Nakanishi

    发明人： Kazuhiko Koike ,  Kojiro Tokuda ,  Tomohiko Nakanishi

    IPC分类号： B32B312

    CPC分类号： C04B38/0006 ,  C04B35/195 ,  Y10T428/24149

    摘要： A cordierite honeycomb body is produced by forming a cordierite material including kaoline into a honeycomb shape and sintering it. The kaoline included in the cordierite material is at least partly composed of kaolinite having a Hinckley crystallinity index of 0.5 or more thereby having a less amorphous phase portion in a kaolinite particle. Therefore, when the cordierite material is sintered, the number of micropores generated in the cordierite is decreased due to the less amorphous phase portion in the kaolinite particles. As a result, density of the cordierite is increased without increasing a C.T.E. thereof. Thus, the cordierite honeycomb body has sufficient strength even when thickness of a cell wall thereof is decreased.

    摘要翻译： 通过将包含高岭土的堇青石材料形成为蜂窝状并烧结来制造堇青石蜂窝体。 包含在堇青石材料中的高岭土至少部分地由Hinckley结晶度指数为0.5或更高的高岭石组成，从而在高岭石颗粒中具有较少的无定形相部分。 因此，当堇青石材料烧结时，由于高岭石颗粒中的非晶相部分较少，在堇青石中产生的微孔数量减少。 结果，堇青石的密度增加而不增加C.T.E. 其中。 因此，即使其细胞壁的厚度减小，堇青石蜂窝体也具有足够的强度。

    SOLID ELECTROLYTE, METHOD OF PRODUCING THE SOLID ELECTROLYTE, AND GAS SENSOR EQUIPPED WITH GAS SENSOR ELEMENT USING THE SOLID ELECTROLYTE
    9.
    发明申请
    SOLID ELECTROLYTE, METHOD OF PRODUCING THE SOLID ELECTROLYTE, AND GAS SENSOR EQUIPPED WITH GAS SENSOR ELEMENT USING THE SOLID ELECTROLYTE 有权
    固体电解质，固体电解质的制造方法和使用固体电解质的气体传感器元件的气体传感器

    公开(公告)号：US20100200427A1

    公开(公告)日：2010-08-12

    申请号：US12700089

    申请日：2010-02-04

    申请人： Kazuhiko Koike ,  Kiyomi Kobayashi

    发明人： Kazuhiko Koike ,  Kiyomi Kobayashi

    IPC分类号： G01N27/26 ,  C04B35/64

    CPC分类号： C04B35/4885 ,  C04B2235/3225 ,  C04B2235/6025 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/85 ,  C04B2235/96 ,  C04B2235/9607 ,  G01N27/4075

    摘要： A solid electrolyte is made of zirconia grains containing yttria and alumina grains dispersed in the zirconia grains. In the solid electrolyte, the yttria content per zirconia content is within a range of 2 to 10 mol. %, the relative density is not less than 93%, and the average particle size Rz of the zirconia grains is not more than 2 μm, an average particle size Ra of the alumina grains is not more than 1 μm. The average particle size Ra of the alumina grains is smaller than the average particle size Rz of the zirconia grains. An average distance value ALa between the alumina grains is not more than 2 μm, and a standard deviation SLa thereof is not more than 0.8. The solid electrolyte satisfies a relationship of (SLa/ALa)×Rz≦0.9.

    摘要翻译： 固体电解质由分散在氧化锆颗粒中的氧化钇和氧化铝颗粒的氧化锆颗粒制成。 在固体电解质中，每氧化锆含量的氧化钇含量在2〜10mol的范围内。 ％，相对密度不小于93％，氧化锆颗粒的平均粒径Rz不大于2μm，氧化铝颗粒的平均粒径Ra不大于1μm。 氧化铝粒子的平均粒径Ra小于氧化锆粒子的平均粒径Rz。 氧化铝颗粒之间的平均距离值ALa不大于2μm，标准偏差SLa不大于0.8。 固体电解质满足（SLa / ALa）×Rz＆nlE; 0.9的关系。

    Process for producing cordierite honeycomb structural body and honeycomb structural body molding aid
    10.
    发明授权
    Process for producing cordierite honeycomb structural body and honeycomb structural body molding aid 有权
    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。