Compensation of the temperature coefficient of the dielectric constant
of barium strontium titanate
    11.
    发明授权
    Compensation of the temperature coefficient of the dielectric constant of barium strontium titanate 失效
    钛酸钡锶介电常数的温度系数的补偿

    公开(公告)号:US5552355A

    公开(公告)日:1996-09-03

    申请号:US538317

    申请日:1995-10-03

    CPC分类号: C04B35/465 C04B35/499

    摘要: A decrease in the temperature coefficient of the dielectric constant (TCK) for polycrystalline ceramics of Barium Strontium Titanate (BST) through admixture with tetragonal bronze type Barium Strontium Niobate (BSN) has been found. For Ba.sub.0.5 Sr.sub.0.5 TiO.sub.3 ceramics, a 10% admixture of BSN decreases TCK by a factor of 2.5 at 10 MHz, with negligible degradation of the dielectric loss. A 37.5% admixture of BSN decreases TCK by a factor of more than 100. Dielectric constants for the mixtures are in the range of 200-500.

    摘要翻译: 已经发现通过与四方青铜型铌酸钡铌酸钡(BSN)混合,通过与钛酸钡锶(BST)的多晶陶瓷的介电常数(TCK)的温度系数的降低。 对于Ba0.5Sr0.5TiO3陶瓷,10%的BSN混合物在10MHz下将TCK降低2.5倍,介电损耗降低可忽略不计。 BSN的37.5%混合物将TCK降低超过100倍。混合物的介电常数在200-500的范围内。