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2. 发明授权

US06242376B1 Dielectric ceramic composition 有权
标题翻译：介电陶瓷组合物
公开(公告)号：US06242376B1
公开(公告)日：2001-06-05
申请号：US09399978
申请日：1999-09-21
申请人： Jeffrey Richard Jacquin , Rong Fong Huang , Randy Elvin Rose
发明人： Jeffrey Richard Jacquin , Rong Fong Huang , Randy Elvin Rose
IPC分类号： C04B35478
CPC分类号： C04B35/111 , C04B35/478
摘要： An alumina based dielectric ceramic composition comprising a base material and an additive material. The base material is represented by the general formula (x) Al2O3+(y) TiO2 wherein x and y are percentages of the total weight of the base material, and x is in the range of about 60 to about 96, more preferably about 94 to about 96, and y is in the range of about 4 to about 40, more preferably about 4 to about 6. In one embodiment the additive material comprises Nb2O5. In a second embodiment the additive material further comprises at least one additional component selected from the group consisting of BaCO3, SnO2, Mn2O3, MnCO3, Mg(OH)2, and Y2O3. The composition requires a relatively lower peak soak temperature (as compared to conventional alumina ceramics) of about 1320 to about 1400° C., more optimally about 1350 to about 1370° C., and is particularly suited for use in high frequency applications. The resulting sintered compositions exhibit a low dielectric constant (about 10 to about 12, more preferably about 11.5 to about 12); a high Q factor (about 10,000 to about 55,000, more preferably about 30,000 to about 50,000); a low temperature coefficient (about −30 to about 30 ppm/° C., more preferably about −3 to about 1); and a high percent fired density (about 95 to about 100, more preferably about 98.33 to about 99.20).
摘要翻译：一种氧化铝基介电陶瓷组合物，其包含基材和添加剂材料。基材由通式（x）Al 2 O 3 +（y）TiO 2表示，其中x和y是基材的总重量的百分比，x在约60至约96的范围内，更优选约94至约96，y在约4至约40，更优选约4至约6的范围内。在一个实施方案中，添加剂材料包含Nb 2 O 5。在第二实施方案中，添加剂材料还包含至少一种选自由BaCO 3，SnO 2，Mn 2 O 3，MnCO 3，Mg（OH）2和Y 2 O 3组成的组的另外的组分。该组合物需要约1320至约1400℃的相对较低的峰值浸泡温度（与常规氧化铝陶瓷相比），更优选约1350至约1370℃，并且特别适用于高频应用。所得烧结组合物表现出低介电常数（约10至约12，更优选约11.5至约12）; 高Q因子（约10,000至约55,000，更优选约30,000至约50,000）; 低温度系数（约-30至约30ppm /℃，更优选约-3至约1）; 和高百分比燃烧密度（约95至约100，更优选约98.33至约99.20）。

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