Densification and dielectric properties of strontium bismuth tantalate ceramics

作者：Lu C H^*; Huang Y H

来源：Advances in Applied Ceramics, 2008, 107(6): 305-309.

DOI：10.1179/174367508X306479

• Layered perovskite
• Ceramics
• Sintering
• Dielectric

The effects of B(2)O(3) doping on the sintering processes and dielectric properties of SrBi(2)Ta(2)O(9) were investigated in this study. The sinterability of SrBi(2)Ta(2)O(9) was significantly enhanced by doping B(2)O(3) due to the formation of liquid phase at elevated temperatures. The addition of B(2)O(3) also led to inhibited thermal decomposition and enhanced grain growth of SrBi(2)Ta(2)O(9). The amount of doped B(2)O(3) was found to substantially influence the dielectric constants of SrBi(2)Ta(2)O(9) ceramics. When a proper amount of B(2)O(3) was added, the dielectric constants greatly increased. For facilitating the densification process and improving the dielectric properties of SrBi(2)Ta(2)O(9), it is important to control the doping amount of B(2)O(3).

• 出版日期2008-12