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    Ceramic composition suited to be injection molded and sintered
    11.
    发明授权
    Ceramic composition suited to be injection molded and sintered 失效
    陶瓷组合物适用于注塑和烧结

    公开(公告)号：US4207226A

    公开(公告)日：1980-06-10

    申请号：US930635

    申请日：1978-08-03

    申请人： Roger S. Storm

    发明人： Roger S. Storm

    IPC分类号： C04B35/56 ,  C04B35/565 ,  C04B35/632 ,  C04B35/634 ,  C04B35/636 ,  C08L61/06

    CPC分类号： C04B35/63408 ,  C04B35/5611 ,  C04B35/565 ,  C04B35/6325 ,  C04B35/634 ,  C04B35/63424 ,  C04B35/63432 ,  C04B35/63448 ,  C04B35/6346 ,  C04B35/63468 ,  C04B35/63476 ,  C04B35/6365

    摘要： Ceramic compositions that may be injection molded and subsequently sintered are described. The compositions include minor amounts of organo-titanates which materially reduce the viscosity of the compositions. The reduction in viscosity is particularly effective in compositions containing high loadings of silicon carbide as the ceramic material. The organo-titanates found useful are represented by the formula:(R.sub.1 --O).sub.m --Ti--(O--X.sub.z --R.sub.2).sub.nwherein:(a) m is an integer from 1 to 8 andn is an integer from 0 to 4,(b) m+n=4,(c) z is an integer from 0 to 1,(d) R.sub.1 is aliphatic containing 1 and 4 carbon atoms,(e) X is independently selected from the group of phosphite, phosphate, and pyrophosphate.(f) R.sub.2 is aliphatic containing from 8 to 25 carbon atoms.

    摘要翻译： 描述可以进行注塑和随后烧结的陶瓷组合物。 组合物包含少量的有效降低组合物粘度的有机钛酸酯。 粘度的降低在含有高含量碳化硅作为陶瓷材料的组合物中特别有效。 发现有用的有机钛酸酯由下式表示：（R1-O）m-Ti-（O-Xz-R2）n其中：（a）m为1至8的整数，n为0至 4，（b）m + n = 4，（c）z是0至1的整数，（d）R1是含有1和4个碳原子的脂族，（e）X独立地选自亚磷酸酯，磷酸酯 和焦磷酸盐。 （f）R 2是含8至25个碳原子的脂族基。

    Silicon carbide bodies having high toughness and fracture resistance and method of making same
    13.
    发明授权
    Silicon carbide bodies having high toughness and fracture resistance and method of making same 失效
    具有高韧性和耐断裂性的碳化硅体及其制造方法

    公开(公告)号：US5298470A

    公开(公告)日：1994-03-29

    申请号：US960178

    申请日：1992-10-09

    申请人： Kai Y. Chia ,  Wolfgang D. G. Boecker ,  Roger S. Storm

    发明人： Kai Y. Chia ,  Wolfgang D. G. Boecker ,  Roger S. Storm

    IPC分类号： C04B35/565 ,  C04B35/575 ,  C04B35/56

    CPC分类号： C04B35/565 ,  C04B35/575

    摘要： A sintered silicon carbide ceramic body preferably produced from a uniform mixture comprising from about 82 percent to about 99.4 percent by weight silicon carbide, from about 0.5 percent to about 10 percent by weight of a nitrogen containing aluminum compound and from about 0.1 to about 8 percent of a rare earth oxide, both reacted with oxygen, wherein said sintered ceramic body has a density greater than 90% percent of theoretical and a fracture toughness, as measured by a single edge notched beam test, of more than 7 MPam.sup.1/2 and method of making the same.

    摘要翻译： 优选由均匀混合物制备的烧结碳化硅陶瓷体，其包含约82重量％至约99.4重量％的碳化硅，约0.5重量％至约10重量％的含氮化合物和约0.1至约8重量％ 的稀土氧化物都与氧反应，其中所述烧结陶瓷体的密度大于理论值的90％，通过单边缘切割梁试验测得的断裂韧性大于7Mamam 1/2，和方法 做同样的事情