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    Refractory NZP-type structures and method of making and using same
    2.
    发明申请
    Refractory NZP-type structures and method of making and using same 审中-公开
    耐火NZP型结构及其制作与使用方法

    公开(公告)号：US20020132720A1

    公开(公告)日：2002-09-19

    申请号：US09942186

    申请日：2001-08-29

    发明人： Willard A. Cutler ,  Gregory A. Merkel

    IPC分类号： C04B035/16 ,  C04B035/447 ,  C04B035/50 ,  C04B035/48 ,  C04B035/03 ,  C04B035/14

    CPC分类号： C04B38/00 ,  B01D39/2068 ,  C04B35/16 ,  C04B35/447 ,  F01N3/022 ,  F01N2330/14 ,  F01N2370/22

    摘要： A structure made predominately of an NZP-type phase having the general formula RxZ4P6nullySiyO24, where 0nullxnull8, 0 nullynull6, R is Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Y, and/or lanthanides, and Z is Zr, Ti, Nb, Ta, Y, and/or lanthanidess, and optionally a sintering additive. The structure has an open porosity of at least 20% by volume, median pore diameter in micrometers of at least a value defined by the quantity null10-0.10 (% open porosity)null, both as measured by mercury porosimetry, and four-point modulus of rupture as measured on a solid rod of circular cross section, of at least 300 psi. Method of making the structure involves forming a mixture of NZP-forming raw material powders that are metal oxide sources capable of reacting to form an NZP-type reaction product, and/or pre-reacted powder having the above general formula. The volumetric average of the median particle diameters of the raw material powders in the raw materials combination is at least 15 micrometers, and the particle diameters of at least 65% by volume of the totality of the raw material particles are greater than 11 micrometers. The mixture is shaped into a green structure, and fired to produce the finished structure. The structure is preferably multicellular, e.g. a honeycomb, where a fluid stream enters the structure, passes through the cells and is acted upon, and exits the structure. The structure is preferably an alternately plugged honeycomb suitable as a diesel particulate filter.

    摘要翻译： 主要由具有通式RxZ4P6-ySiyO24的NZP型相的结构，其中0 <= x <= 8,0 <= y <= 6，R是Li，Na，K，Rb，Cs，Mg，Ca ，Sr，Ba，Y和/或镧系元素，Z是Zr，Ti，Nb，Ta，Y和/或无镧，以及任选的烧结添加剂。 该结构具有至少20体积％的开放孔隙率，中值孔径（以微米为单位），至少由[10-0.10（开孔率））定义的值，通过水银孔率法测定，以及四点 至少300psi的圆截面的实心棒上测得的断裂模量。 制造结构的方法包括形成NZP形成原料粉末的混合物，其是能够反应形成NZP型反应产物的金属氧化物源，和/或具有上述通式的预反应的粉末。 原料组合中的原料粉末的中值粒径的体积平均值为至少15微米，原料颗粒的总体积的至少65体积％的粒径大于11微米。 将混合物成形为绿色结构，并烧制以生产成品结构。 该结构优选是多细胞的，例如 蜂窝体，其中流体流进入结构，通过细胞并被作用在并离开结构。 该结构优选为适合作为柴油微粒过滤器的交替堵塞的蜂窝体。

    Method for manufacturing sintered piece
    5.
    发明申请
    Method for manufacturing sintered piece 失效
    烧结片的制造方法

    公开(公告)号：US20030176268A1

    公开(公告)日：2003-09-18

    申请号：US10290160

    申请日：2002-11-08

    申请人： PENTAX CORPORATION

    发明人： Tsuyoshi Ishikawa

    IPC分类号： C04B035/01 ,  C04B035/22 ,  C04B035/447

    CPC分类号： C04B35/62655 ,  A61K6/0044 ,  A61K6/033 ,  A61K6/0643 ,  A61L27/12 ,  C04B33/14 ,  C04B33/30 ,  C04B33/32 ,  C04B35/447 ,  C04B35/6365 ,  C04B2235/3212 ,  C04B2235/5436 ,  C04B2235/6585 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9653

    摘要： The method for manufacturing a sintered piece comprises preparing a molded piece of a composite including calcium phosphate compound such as hydroxyapatite, and baking the molded piece in an oxygen atmosphere to obtain the sintered piece. The oxygen concentration of the oxygen atmosphere is controlled to be not less than 25 vol %, and the relative humidity of the oxygen atmosphere is controlled to be below 30%RH. The baking is performed for 30 minutes to 8 hours at a temperature not less than 1000null C. and below a temperature at which thermal decomposition of the calcium phosphate occurs.

    摘要翻译： 制造烧结体的方法包括制备包括磷酸钙化合物如羟基磷灰石的复合材料的模制件，并在氧气氛中烘烤该模制件以获得烧结块。 将氧气氛的氧浓度控制在25体积％以上，将氧气氛的相对湿度控制在30％RH以下。 在不低于1000℃的温度下并在低于发生磷酸钙热分解的温度下进行烘烤30分钟至8小时。

    Radiation shielding phosphate bonded ceramics using enriched isotopic boron compounds
    6.
    发明申请
    Radiation shielding phosphate bonded ceramics using enriched isotopic boron compounds 审中-公开
    使用富集同位素硼化合物的辐射屏蔽磷酸盐结合陶瓷

    公开(公告)号：US20020165082A1

    公开(公告)日：2002-11-07

    申请号：US09791422

    申请日：2001-02-23

    发明人： Dileep Singh ,  Seung-Young Jeong

    IPC分类号： C04B035/00 ,  G21F009/00 ,  C04B035/447

    CPC分类号： G21F1/06

    摘要： A new method for enhancing the physical and radiation shielding characteristics of phosphate ceramics, via the incorporation therein of isotopic boron compounds and bismuth, iron, and lead additives. The resulting material finds applications as physical and radiation shields and as building constituents in spent fuel- and waste containment-scenarios.

    摘要翻译： 通过掺入同位素硼化合物和铋，铁和铅添加剂，提高磷酸盐陶瓷的物理和辐射屏蔽特性的新方法。 所产生的材料可用作物理和辐射屏蔽，以及在乏燃料和废物遏制场景中构建组成部分。