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    • 2. 发明授权
    • Sinterable ceramic compositions
    • 可烧结陶瓷组合物
    • US5175132A
    • 1992-12-29
    • US794505
    • 1991-11-19
    • Thomas D. KetchamLeroy S. Share
    • Thomas D. KetchamLeroy S. Share
    • C04B35/111C04B35/185C04B35/195C04B35/443C04B35/486C04B35/49H01M8/12
    • H01M8/1246C04B35/111C04B35/185C04B35/195C04B35/443C04B35/486C04B35/49Y02E60/525Y02P70/56
    • Hard crystalline sintered ceramic products, and a method for making them at substantially reduced sintering temperatures, are disclosed, the products being manufactured by the sintering of mixtures comprising one or more ceramic powders selected from among zirconia, stabilized zirconia, partially stabilized zirconia, alumina, mullite, cordierite, and MgAl.sub.2 O.sub.4 spinal together with a combination sintering aide including TiO.sub.2 and at least one transition metal oxide selected from the group consisting of copper oxide, manganese oxide, cobalt oxide and zinc oxide, the mixture comprising at least about 3.5 mole percent TiO.sub.2, at least about 1.3 percent of transition metal oxides, about 4.8-50 mole percent total of TiO.sub.2 +transition metal oxides, and the remainder ceramic powder. Sintering of these mixtures at temperatures typically 200.degree.-350.degree. C. below the pure powder sintering temperatures of the base ceramics provides products with open porosities less than 5% by volume, more typically 0-2% by volume.
    • 公开了硬结晶烧结陶瓷产品及其在显着降低的烧结温度下制造它们的方法,所述产品通过烧结包含一种或多种选自氧化锆,稳定的氧化锆,部分稳定的氧化锆,氧化铝, 莫来石,堇青石和MgAl2O4脊髓以及包含TiO 2和选自氧化铜,氧化锰,氧化钴和氧化锌的至少一种过渡金属氧化物的组合烧结助剂,所述混合物包含至少约3.5摩尔%的TiO 2 ,至少约1.3%的过渡金属氧化物,约4.8-50摩尔%的TiO 2 +过渡金属氧化物,剩余的陶瓷粉末。 这些混合物在基本陶瓷的纯粉末烧结温度以下的典型温度下典型地温度为200-350℃的烧结提供了小于5体积%,更典型地为0-2体积%的开孔率的产品。