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    • 5. 发明授权
    • Ceramic composition of high dielectric constant comprising PbO.sub.3,
La.sub.2 O.sub.3, MO, ZrO.sub.2 and TiO.sub.2
    • 包含PbO 3,La 2 O 3,MO,ZrO 2和TiO 2的高介电常数陶瓷组成
    • US4843046A
    • 1989-06-27
    • US82007
    • 1987-08-04
    • Takashi YamaguchiTakeshi InoueMasashi Saito
    • Takashi YamaguchiTakeshi InoueMasashi Saito
    • C04B35/49C04B35/493H01B3/12H01G4/12
    • C04B35/493H01G4/1245
    • Disclosed herein is a ceramic composition of high dielectric constant which comprises the major constituents of PbO, La.sub.2 O.sub.3, MO, ZrO.sub.2, and TiO.sub.2 in the ratio defined by the formula below.(1-x-y)PbO.multidot.x/2La.sub.2 O.sub.3 .multidot.yMo.multidot.(1-z)ZrO.sub.2 .multidot.zTiO.sub.2where,M represents Ba and/or Sr;0.06.ltoreq.x.ltoreq.0.300.03.ltoreq.y.ltoreq.0.480.20.ltoreq.z.ltoreq.0.50and an additive represented by PbWo.sub.4 and/or Pb(Mg.sub.1/2 W.sub.1/2)O.sub.3 in an amount of 1-40 wt % (in total) based on the above-mentioned major constituents (provided that the amount of PbWO.sub.4 is less than 15 wt % of the amount of the major constituents and the amount of Pb(Mg.sub.1/2 W.sub.1/2)O.sub.3 is less than 40 wt % of the amount of the major constituents). Less than 5 mol % of all Pb in the composition may be replaced by Ag and/or less than 6 mol % of all Pb in the composition may be replaced by Bi.
    • 本文公开了一种高介电常数的陶瓷组合物,其包含由下式定义的比例的PbO,La 2 O 3,MO,ZrO 2和TiO 2的主要成分。 (1-x-y)PbOxx / 2La2O3xyMox(1-z)ZrO2xzTiO2其中,M表示Ba和/或Sr; 由PbWo4和/或Pb(Mg1 / 2W1 / 2)O3表示的添加剂的添加量为1(重量%)的添加剂,其中,0.06≤x≤0.03,0.03/ 基于上述主要成分为-40重量%(总计)(前提条件是PbWO 4的量少于主要成分的量的15重量%,Pb(Mg1 / 2W1 / 2)O3的量为 少于主要成分的量的40重量%)。 组合物中所有Pb的少于5摩尔%可以被Ag代替,和/或组合物中所有Pb的少于6摩尔%可以被Bi代替。
    • 8. 发明授权
    • Quick setting compositions
    • 快速组合
    • US5273579A
    • 1993-12-28
    • US53340
    • 1993-04-28
    • Yoshio TanakaTetsuro TsutsumiKeiji SaitoHisanobu Tanaka
    • Yoshio TanakaTetsuro TsutsumiKeiji SaitoHisanobu Tanaka
    • C04B7/21C04B28/04C04B7/32
    • C04B7/21C04B28/04Y02P40/143
    • The present invention concerns a quick setting composition capable of obtaining satisfactory strength developability irrespective of the fluctuation of the ingredients in a metallurgical slag, excellent in the strength developability at cold temperature, easy for coagulation control and inexpensive as well, which contains a cement ingredient comprising portland cement and/or mixed cement, 2 to 50% by weight at the integral ratio of a quick setting agent prepared by adding 3 to 20% by weight of an alkali carbonate at an internal ratio to a mixture comprising 40 to 95% by weight of a finely powdery metallurgical slag and 5 to 60% by weight of II-type anhydrous gypsum, based on the cement ingredient, and 0.1 to 5% by weight of a coagulation controlling agent comprising an organic acid type coagulation retarder and an alkali sulfate and/or calcium salt based on the total weight of the cement ingredient and the quick setting ingredient.
    • 本发明涉及能够获得令人满意的强度显影性的快速凝固组合物,而不管冶炼炉渣中的成分波动如何,在低温下的强度显影性优异,易于凝固控制,并且成本低廉,其含有水泥成分,其包含 波特兰水泥和/或混合水泥,按照与包含40至95重量%的混合物的内部比例加入3至20重量%的碱金属碳酸盐制备的快速凝固剂的整体比例为2至50重量% 的粉末冶金炉渣和5至60重量%的II型无水石膏(基于水泥成分)和0.1至5重量%的包含有机酸型凝结缓凝剂和碱金属硫酸盐的凝结控制剂,以及 /或钙盐,基于水泥成分和快速固化成分的总重量。