以工业纯BaCO3、ZnO、Nb2O5为原料,按照一定配比配料混合,通过传统的固相反应法合成Ba(Zn1/3Nb2/3)O3(即BZN)陶瓷材料,预烧温度(分别为1000、1100和1200℃)对BZN陶瓷微波性能的影响过程中,对合成的BZN粉体进行差热/热重分析,对烧结后的BZN陶瓷进行XRD分析和SEM形貌观察,利用矢量网络分析仪测量BZN陶瓷的微波性能Q、εr和rf.实验结果表明,预烧温度对BZN微波陶瓷的介电性能影响比较大,预烧温度为1200℃时可以获得较好的介电性能:εr=41.6,Q*f=38671GHz,τf=2.8×105/℃.
参考文献
| [1] | 张迎春;岳振星;李龙土 .[J].稀有金属材料与工程,2002,319(zk):288. |
| [2] | Reaney I M;Qazi I;Lee W E .[J].Journal of Applied Physics,2000,88(11):6708. |
| [3] | Kim J S;Kim J W;Cheon C I et al.[J].Journal of the European Ceramic Society,2001,21(15):2599. |
| [4] | Bieringer M.;Moussa SM.;Noailles LD.;Burrows A.;Kiely CJ.;Rosseinsky MJ.;Ibberson RM. .Cation ordering, domain growth, and zinc loss in the microwave dielectric oxide Ba3ZnTa2O9-delta[J].Chemistry of Materials,2003(2):586-597. |
| [5] | Hughes H;Iddles D M .[J].Applied Physics Letters,2001,79(18):2952. |
| [6] | Takahashi T.;Wu E.J. .First-principles estimate of the order-disorder transition in Ba(Zn_xNb_(1-x))O_3 microwave dielectrics[J].Journal of Materials Research,2000(10):2061-2064. |
| [7] | Davies P K;Borisevich A;Thirumal M .[J].Journal of the European Ceramic Society,2003,23:2461-2466. |
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