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公开(公告)号：US5258335A
公开(公告)日：1993-11-02
申请号：US838631
申请日：1992-02-19
申请人： S. K. Muralidhar , Gordon J. Roberts , Aziz S. Shaikh , David J. Leandri , Dana L. Hankey , Thomas J. Vlach
发明人： S. K. Muralidhar , Gordon J. Roberts , Aziz S. Shaikh , David J. Leandri , Dana L. Hankey , Thomas J. Vlach
CPC分类号： H01B3/087 , C03C10/0054 , C03C14/004 , C03C8/22 , H01L23/49894 , C03C2214/04 , H01L2924/0002 , H01L2924/09701 , H05K1/0306
摘要： A low dielectric, low temperature fired glass ceramic produced by firing at about 800.degree.-900.degree. C. a mixture comprising at least one glass consisting of, by weight percent, 0 to 50% B.sub.2 O.sub.3, 35 to 65% CaO, and 10 to 65% SiO.sub.2, and selected from the glasses of CaO-B.sub.2 O.sub.3 -SiO.sub.2 glass system. The glass ceramic is light weight, exhibits a dielectric constant of less than about 7.9, has adequate mechanical strength and thermal conductivity, and is compatible with precious metal conductors. The glass ceramic is useful in the manufacture of integrated circuits and any other electronic or mechanical components where a glass ceramic exhibiting this particular combination of characteristics is suitable.
摘要翻译： 一种低介电低温烧制玻璃陶瓷，通过在约800-900℃下烧制而制备的混合物，该混合物包括至少一种玻璃，其中重量百分数为0-50％B2O3,35-65％CaO，和10- 65％SiO2，并选自CaO-B2O3-SiO2玻璃体系玻璃。 玻璃陶瓷重量轻，介电常数小于约7.9，具有足够的机械强度和导热性，并与贵金属导体兼容。 玻璃陶瓷可用于制造集成电路和任何其它电子或机械部件，其中表现出特定特征组合的玻璃陶瓷是合适的。
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公开(公告)号：US5164342A
公开(公告)日：1992-11-17
申请号：US604344
申请日：1990-10-24
申请人： S. K. Muralidhar , Aziz S. Shaikh , Gordon J. Roberts , Dana L. Hankey , David J. Leandri , Thomas J. Vlach
发明人： S. K. Muralidhar , Aziz S. Shaikh , Gordon J. Roberts , Dana L. Hankey , David J. Leandri , Thomas J. Vlach
CPC分类号： C03C12/00 , C03C10/0009 , C03C10/0054 , C03C14/004 , C03C8/22 , H01B3/087 , H01L23/49894 , C03C2214/04 , H01L2924/0002 , H01L2924/09701 , H05K1/0306
摘要： A low dielectric, low temperature fired glass ceramic produced by firing at about 800.degree.-950.degree. C. a mixture comprising at least one glass consisting of, by weight percent, 0 to 50% B.sub.2 O.sub.3, 35 to 65% CaO, and 10 to 65% SiO.sub.2 l , and selected from the glasses of CaO-B.sub.2 O.sub.3 -SiO.sub.2 glass system. The glass ceramic is light weight, exhibits a dielectric constant of less than about 5.2, has adequate mechanical strength and thermal conductivity, and is compatible with precious metal conductors. The glass ceramic is useful in the manufacture of integrated circuits and any other electronic or mechanical components where a glass ceramic exhibiting this particular combination of characteristics is suitable.
摘要翻译： 一种低介电低温烧制玻璃陶瓷，其通过在约800-950℃下焙烧而制备的混合物，该混合物包括至少一种玻璃，其中重量百分比为0-50％B2O3,35-65％CaO，和10- 65％SiO2，并选自CaO-B2O3-SiO2玻璃体系玻璃。 玻璃陶瓷重量轻，介电常数小于5.2，具有足够的机械强度和导热性，并与贵金属导体兼容。 玻璃陶瓷可用于制造集成电路和任何其它电子或机械部件，其中表现出特定特征组合的玻璃陶瓷是合适的。
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公开(公告)号：US06214078B1
公开(公告)日：2001-04-10
申请号：US09273990
申请日：1999-03-22
IPC分类号： B01D3920
CPC分类号： B01D67/0046 , B01D39/2075 , B01D71/02 , B01D2323/12 , B01D2325/02
摘要： A porous refractory product suitable for use in filtering high temperature combustion products. The product includes a matrix of recrystallized silicon carbide formed by heating a cast preform containing relatively coarse silicon carbide crystals selected to produce the desired permeability, and relatively fine silicon carbide crystals to a temperature of at least 2320° C. At this temperature, the relatively fine silicon carbide crystals sublime and condense on the relatively large crystals. This results in recrystallization of the cast preform to form the porous matrix with the desired permeability.
摘要翻译： 适用于过滤高温燃烧产物的多孔耐火材料。 该产品包括通过加热包含选择以产生所需渗透性的相对粗大的碳化硅晶体的铸造预制件形成的再结晶碳化硅基体和相对精细的碳化硅晶体至至少2320℃的温度。在该温度下， 精细的碳化硅晶体在相对较大的晶体上隆起而凝结。 这导致铸塑预制件的再结晶以形成具有所需渗透率的多孔基体。
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公开(公告)号：US06797203B2
公开(公告)日：2004-09-28
申请号：US10194932
申请日：2002-07-12
IPC分类号： B29B900
CPC分类号： C04B35/481 , B01J2/06 , B28B1/004 , C04B35/01 , C04B35/16 , C04B35/44 , C04B35/462 , C04B35/48 , C04B35/486 , C04B35/62625 , C04B35/62635 , C04B2235/3206 , C04B2235/3217 , C04B2235/3229 , C04B2235/3248 , C04B2235/3409 , C04B2235/3418 , C04B2235/3445 , C04B2235/3481 , C04B2235/349 , C04B2235/36 , C04B2235/528 , C04B2235/5296 , C04B2235/5427 , C04B2235/5445 , C04B2235/765 , C04B2235/77 , C04B2235/80 , C04B2235/94
摘要： A method of forming substantially spherical ceramic beads that includes conveying an aqueous ceramic slurry to a nozzle tip that is immersed in an inert water-immiscible fluid layer. The nozzle tip is spaced a predetermined distance away from a rotating disk that is also immersed in the immiscible fluid layer. The rotating disk creates a shear force that at the nozzle tip that dislodges droplets of the aqueous ceramic slurry from the nozzle tip into the immiscible fluid layer. Once dislodged, the droplets assume a substantially spherical shape and a substantially mono-modal size distribution. The droplets are permitted to pass from the immiscible fluid layer into an aqueous gelling solution wherein the droplets are converted into rigid beads. In a preferred embodiment of the invention, the rigid beads are recovered from the gelling solution, washed, and then sintered to obtain a density of greater than about 98% of theoretical density and a sphericity of greater than about 0.95. The method can be used to fabricate substantially spherical zirconia-containing beads having a diameter within the range of from about 0.1 mm to about 2.0 mm that are useful, for example, as grinding media.
摘要翻译： 一种形成基本上球形的陶瓷珠的方法，包括将水性陶瓷浆料输送到浸入惰性水不混溶流体层中的喷嘴头。 喷嘴尖端与也浸没在不混溶流体层中的旋转盘间隔预定距离。 旋转盘产生剪切力，其在喷嘴尖端处将水性陶瓷浆料的液滴从喷嘴尖端移出到不混溶的流体层中。 一旦脱落，液滴呈现基本上球形的形状和基本上单模态的尺寸分布。 允许液滴从不混溶的流体层进入水凝胶溶液，其中液滴被转化为刚性珠粒。 在本发明的优选实施方案中，从胶凝溶液中回收刚性珠粒，洗涤，然后烧结，以获得大于理论密度的约98％的密度和大于约0.95的球形度。 该方法可用于制造直径在约0.1mm至约2.0mm范围内的基本上为球形的含氧化锆的珠粒，其可用于例如研磨介质。
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