Membrane for capacitive vacuum measuring cell
    42.
    发明申请
    Membrane for capacitive vacuum measuring cell 有权
    电容式真空测量电池膜

    公开(公告)号:US20030118802A1

    公开(公告)日:2003-06-26

    申请号:US10360229

    申请日:2003-02-07

    申请人: INFICON GmbH

    发明人: Per Bjoerkman

    IPC分类号: C04B035/10

    CPC分类号: G01L9/0075 G01L9/0044

    摘要: A ceramic membrane for a capacitive vacuum measuring cell includes a thin ceramic membrane with a thickness of

    摘要翻译: 用于电容式真空测量电池的陶瓷膜包括厚度<250μm,特别是小于120μm的薄陶瓷膜。 膜由Al2O3的带状生坯体制造,并且通过在烧结后使膜平滑而赋予高平坦度。 生坯在比烧结后施加的平滑温度高的烧结温度下烧结。

    Refractory material for casting a rare-earth alloy and its production method as well as method for casting the rare-earth alloys
    43.
    发明申请
    Refractory material for casting a rare-earth alloy and its production method as well as method for casting the rare-earth alloys 审中-公开
    用于铸造稀土合金的耐火材料及其制备方法以及铸造稀土合金的方法

    公开(公告)号:US20030109372A1

    公开(公告)日:2003-06-12

    申请号:US10277880

    申请日:2002-10-23

    申请人: SHOWA DENKO K.K.

    摘要: Rare-earth alloy is cast into a sheet (6) or the like by using a tundish (3, 13). The refractory material of the tundish used for casting does not necessitate preheating for improving the flowability of the melt (2). The refractory material used essentially consists of 70 wt % or more of Al2O3 and 30 wt % or less of SiO2, or 70 wt % or more of ZrO2 and 30 wt % or less of one or more of Y2O3, Ce2O3, CaO, MgO, Al2O3, TiO2 and SiO2. The refractory material has 1 g/cm3 or less of bulk density, has 0.5 kca/(mhnull C.) or less of thermal conductivity in the temperature range of from 1200 to 1400null C., and has 0.5 wt % or less of ratio of ignition weight-loss under the heating condition of 1400null C. for 1 hour.

    摘要翻译: 通过使用中间包(3,13)将稀土合金铸造成板(6)等。 用于铸造的中间包的耐火材料不需要预热以改善熔体(2)的流动性。 使用的耐火材料主要由70重量%以上的Al 2 O 3和30重量%以下的SiO 2,或70重量%以上的ZrO 2和30重量%以下的Y 2 O 3,Ce 2 O 3,CaO,MgO, Al2O3,TiO2和SiO2。 难熔材料的堆积密度为1g / cm 3以下,在1200〜1400℃的温度范围内具有0.5kcal /(mh℃)以下的导热性,并且在0.5〜 在1400℃的加热条件下点火重量损失比1小时。

    Ceramic polycrystal and method of manufacturing the same
    46.
    发明申请
    Ceramic polycrystal and method of manufacturing the same 审中-公开
    陶瓷多晶及其制造方法

    公开(公告)号:US20020155944A1

    公开(公告)日:2002-10-24

    申请号:US10099450

    申请日:2002-03-15

    CPC分类号: C04B35/115 C04B35/632

    摘要: A ceramic polycrystal and a method of manufacturing such a ceramic polycrystal having thermal stability enough to be used in an arc tube are provided. The ceramic polycrystal has crystalline particles. Each of crystalline particles has a crystalline structure selected from triclinc, monoclinic, rhombi, tetragonal, trigonal, and hexagonal systems, with an average grain size being not less than 5 nullm and a linear transmittance being not less than 8%.

    摘要翻译: 提供一种陶瓷多晶体和制造这种具有足以用于电弧管的热稳定性的陶瓷多晶体的方法。 陶瓷多晶体具有结晶粒子。 每个结晶颗粒具有选自三角形,单斜晶,菱形,四方晶,三角形和六方晶系的晶体结构,平均晶粒尺寸不小于5μm,线透射率不小于8%。

    Method of making a permeable ceramic tile insulation
    47.
    发明申请
    Method of making a permeable ceramic tile insulation 有权
    制造可渗透瓷砖绝缘的方法

    公开(公告)号:US20020149128A1

    公开(公告)日:2002-10-17

    申请号:US09834360

    申请日:2001-04-13

    摘要: A method of making a permeable fiber-reinforced ceramic body comprising mixing an organic particulate with silica fiber, alumina fiber, alumina borosilicate fiber, a dispersant, and water to produce a slurry of fibrous ceramic material. The slurry is then placed within a mold and vaccuum pressure is applied thereto to substantially remove the water to form a fibrous ceramic body. The fibrous ceramic body is then dried and sintered to a temperature sufficient to bond the ceramic material together to form a porous ceramic article. Simultaneously, the fibrous ceramic body is heated to a temperature sufficient to generally burn off the organic particulate to create voids interconnecting the pores to form a permeable fiber reinforced porous ceramic article.

    摘要翻译: 一种制造可渗透纤维增强陶瓷体的方法,包括将有机颗粒与二氧化硅纤维,氧化铝纤维,氧化硼硅酸盐纤维,分散剂和水混合以产生纤维状陶瓷材料的浆料。 然后将浆料放置在模具内,并向其中施加真空压力以基本上除去水以形成纤维状陶瓷体。 然后将纤维状陶瓷体干燥并烧结至足以将陶瓷材料粘合在一起形成多孔陶瓷制品的温度。 同时,将纤维状陶瓷体加热至足以通常烧掉有机颗粒的温度,以产生互相连接孔的空隙,形成可渗透纤维增强的多孔陶瓷制品。

    Lithium aluminosilicate ceramic
    50.
    发明申请
    Lithium aluminosilicate ceramic 失效
    铝硅酸铝陶瓷

    公开(公告)号:US20020042339A1

    公开(公告)日:2002-04-11

    申请号:US09969569

    申请日:2001-10-01

    IPC分类号: C04B035/10

    摘要: A ceramic article which consists essentially, by weight on the oxide basis, of 10-25% SiO2, 65-85% Al2O3, and 2-12% Li2O and comprises beta-eucryptite as a first phase having a negative component in thermal expansion and a melting point Tm1, and a second phase having a positive component in thermal expansion which is higher than the component in thermal expansion of the first phase and a melting point Tm2, wherein Tm2>Tm1, wherein the first phase is at most 50% by weight of the ceramic, and wherein the ceramic is characterized by microcracking. Tm2 is at least 1800null C. The ceramic article exhibits a near zero coefficient of thermal expansion from room temperature to 800null C., a high refractoriness, and a high resistance to thermal shock properties which make the inventive ceramic extremely desirable in high temperature applications, such as filters for diesel exhaust engines.

    摘要翻译: 一种陶瓷制品,其基本上由氧化物重量组成,为10-25%SiO 2,65-85%Al 2 O 3和2-12%Li 2 O,并且包含作为第一相的β​​-锂辉石,其具有热膨胀的负成分, 熔点Tm1,第二相的热膨胀成分高于第一相的热膨胀成分和熔点Tm2,其中Tm2> Tm1,其中第一相为至多50%,其中第一相为50%以下 陶瓷的重量,其中陶瓷的特征在于微裂纹。 Tm2至少为1800℃。陶瓷制品从室温至800℃呈现接近零的热膨胀系数,高耐火性和高耐热冲击性能,使得本发明的陶瓷在高温下非常需要 应用,如柴油机废气发动机的过滤器。