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99 条记录 (耗时 0.013 秒)

    Use of polymeric catalyst in synthesis of sol-gel derived ceramic materials
    74.
    发明授权
    Use of polymeric catalyst in synthesis of sol-gel derived ceramic materials 失效
    在合成溶胶 - 凝胶衍生的陶瓷材料中使用聚合催化剂

    公开(公告)号：US5316695A

    公开(公告)日：1994-05-31

    申请号：US392189

    申请日：1989-08-10

    申请人： Garth L. Wilkes ,  Anthony B. Brennan

    发明人： Garth L. Wilkes ,  Anthony B. Brennan

    IPC分类号： C03C14/00 ,  C04B35/624 ,  C08G77/08 ,  C08G77/50 ,  C08G77/58 ,  B01J13/00 ,  C03C3/06

    CPC分类号： C03C14/00 ,  C04B35/624 ,  C08G77/08 ,  C08G77/50 ,  C08G77/58 ,  C03C2214/12 ,  C03C2214/32

    摘要： Polymeric catalysts (e.g., polymeric acid catalysts such as poly(styrene)sulfonic acid) can be used in the synthesis of sol-gel derived ceramic materials from metal alkoxides, for example, organic/inorganic hybrid materials formed by reaction of a metal alkoxide and a reactive endcapped polymeric modifier. The use of a polymeric catalyst, rather than a conventional monomeric (inorganic or organic) acid catalyst, has a non-deleterious effect on the aging behavior and offers potential for control of rheological properties (spinnability, coatability, etc.) of the hybrid materials.

    摘要翻译： 聚合催化剂（例如，聚（苯乙烯）磺酸等聚合酸催化剂））可以用于从金属醇盐合成溶胶 - 凝胶衍生的陶瓷材料，例如通过金属醇盐反应形成的有机/无机杂化材料 反应性封端的聚合物改性剂。 使用聚合物催化剂而不是常规的单体（无机或有机）酸催化剂对老化行为具有非有害影响，并提供控制混合材料的流变性能（可纺性，可涂布性等）的潜力 。

    Diamond-containing ceramic composites and methods of making same
    75.
    发明授权
    Diamond-containing ceramic composites and methods of making same 失效
    含有金刚石的陶瓷复合材料及其制备方法

    公开(公告)号：US5215942A

    公开(公告)日：1993-06-01

    申请号：US232359

    申请日：1988-08-15

    申请人： John D. MacKenzie ,  Edward J. A. Pope

    发明人： John D. MacKenzie ,  Edward J. A. Pope

    IPC分类号： C03C14/00

    CPC分类号： C04B35/624 ,  C03C14/004 ,  C04B35/16 ,  C04B35/6303 ,  C03C2214/32 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/3427 ,  C04B2235/427 ,  C04B2235/441 ,  C04B2235/6581 ,  C04B2235/77 ,  C04B2235/80

    摘要： Diamond-containing ceramic composites useful as substrates and the like in the electronics industry as well as for abrasive and cutting applications and methods of making same are disclosed. More specifically, the sol-gel process is used to fabricate the composites by combining water, an organometallic precursor compound, alcohol or similar solvent between the water and the precursor compound, a catalyst, diamond powder and a thickening agent to form a moldable, wet, porous gel which can be dried at a temperature below the boiling point of any of the gel liquids to form a stabilized porous composite. The stabilized porous composite can be densified, by heat, in an essentially oxygen-free atmosphere to form a diamond-containing ceramic composite having low porosity.

    摘要翻译： 公开了可用作电子工业中的基板等的用于研磨和切割应用的金刚石陶瓷复合材料及其制造方法。 更具体地，溶胶 - 凝胶法用于通过在水和前体化合物，催化剂，金刚石粉末和增稠剂之间结合水，有机金属前体化合物，醇或类似溶剂来形成复合材料，以形成可模制的，湿的 多孔凝胶，其可以在低于任何凝胶液体的沸点的温度下干燥以形成稳定的多孔复合材料。 稳定的多孔复合材料可以通过加热在基本上无氧气氛中致密化，形成具有低孔隙率的含金刚石的陶瓷复合材料。

    High temperature structural insulating material
    77.
    依法登记的发明
    High temperature structural insulating material 失效
    高温结构绝缘材料

    公开(公告)号：USH200H

    公开(公告)日：1987-01-06

    申请号：US625324

    申请日：1984-06-27

    申请人： Wayne Y. Chen

    发明人： Wayne Y. Chen

    IPC分类号： C03C14/00 ,  C04B35/63 ,  C04B35/645 ,  F02F7/00

    CPC分类号： C04B35/645 ,  C03C14/00 ,  C03C2214/32 ,  C04B35/6316 ,  F02F7/0087

    摘要： A high temperature structural insulating material useful as a liner for cylinders of high temperature engines through the favorable combination of high service temperature (above about 800.degree. C.), low thermal conductivity (below about 0.2 W/m.degree. C.), and high compressive strength (above about 250 psi). The insulating material is produced by selecting hollow ceramic beads with a softening temperature above about 800.degree. C., a diameter within the range of 20-200 .mu.m, and a wall thickness in the range of about 2-4 .mu.m; compacting the beads and a compatible silicate binder composition under pressure and sintering conditions to provide the desired structural form with the structure having a closed-cell, compact array of bonded beads.