用熔盐法制备的不同居里温度的Pb(Mg1/3Nb2/3)O3基陶瓷预烧粉体和烧结粉体为初始高、低温组元,采用混合烧结法制备出PMN基弛豫铁电复相陶瓷,研究了PMN基复相陶瓷的介电性能和电致伸缩性能及其温度稳定性.结果表明:采用烧结粉体制得的复相陶瓷不仅具有较大的介电常数(室温介电常数为8368)和电致应变2.8×10-4,而且在-10～+70℃范围内温度稳定性也较好.
参考文献
| [1] | HARUMI TAKAGI;KOICHIRO SAKATA;TADASHI TAKENAKA .Electrostrictive properties of Pb(Mg1/3Nb2/3)O3-based relaxor ferroelectric ceramics[J].Japanese Journal of Applied Physics,1993,32(9B):4280-4283. |
| [2] | ZHAO J;ZHANG Q M;KIM N et al.Electromechanical properties of relaxor ferroelectric lead magnesium niobate-lead titanate ceramics[J].Japanese Journal of Applied Physics,1995,34(10):5658-5663. |
| [3] | KUMAR U;CROSS L E;HALLIYAL A .Pyroelectric and electrostrictive properties of (1-x-y)PZN-xBT-yPT ceramics solid solutions[J].Journal of the American Ceramic Society,1992,75(08):2155-2164. |
| [4] | 刘咏梅;温保松 .PMN-PT 陶瓷材料的微观结构、介电性能及电致伸缩效应的研究[J].无机材料学报,1994,9(01):117-121. |
| [5] | Park JH.;Park SJ.;Kim BK. .ELECTROSTRICTIVE COEFFICIENTS OF 0.9PB(MG1/3NB2/3)O-3-O.1PBTIO(3) RELAXOR FERROELECTRIC CERAMICS IN THE FERROELECTRICITY-DOMINATED TEMPERATURE RANGE[J].Journal of the American Ceramic Society,1996(2):430-434. |
| [6] | OH J;LEE J;CHO S .Broadening of dielectric constant by a control of compositional fluctuation in (1-x) PMN-xPT system[J].Ferroelectrics,1994,158:241-246. |
| [7] | Zupei Y.;Changsheng T.;Shaobo Q. .Effect of excess PbO or MgO and purity of MgO on phase structure and dielectric properties of PMN-PT ceramics prepared by MSS[J].Journal of Materials Science Letters,2000(19):1743-1746. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%