采用两步合成工艺制备了新型Na1/2 Bi1/2Ti1-x(Ni1/3Nb2/3)xO3系无铅压电陶瓷.研究了B位复合离子取代对NBT陶瓷晶体结构及压电、介电性能的影响.X射线衍射分析表明,所研究的组成均能形成纯钙钛矿(ABO3)型固溶体.陶瓷材料的介电常数-温度曲线显示该体系材料具有明显的弥散相变特征.适量的取代能提高材料的压电性能,在x=3%时压电常数d33=98pC/N,x=2%时厚度机电耦合系数kt=0.46,为所研究组成中的最大值.该体系陶瓷具有较大的kt值和较小的kp值,以及较大的各向异性,是一种优良的、适合高频下使用的超声换能材料.
参考文献
| [1] | Reznichenko L A .Properties of PZT-related piezoelectric ceramics prepared from different powders[J].Inorganic Materials,1995,315(06):769. |
| [2] | Guo R.;Park SE.;Noheda B.;Cox DE.;Shirane G.;Cross LE. .Origin of the high piezoelectric response in PbZr1-xTixO3[J].Physical review letters,2000(23):5423-5426. |
| [3] | 裴志斌,杜红亮,车俊,魏晓勇,屈绍波.PNW-PMS-PZT压电陶瓷准同型相界的压电性能研究[J].无机材料学报,2005(04):988-992. |
| [4] | Smolenskii G A;Isupov V A .New ferroelelectrics of complex composition[J].Soviet Physics Solid State,1961,2:2651. |
| [5] | Suchanicz J .Time evolution of the phase transformation in Na0.5Bi0.5TiO3[J].Ferroelectrics,1997,200:319. |
| [6] | Suchanicz J;Kusz J;Bohm H et al.Structural and dielectric properties of (Na0.5 Bi0.5)0.70 Ba0.30 TiO3 ceramics[J].Journal of the European Ceramic Society,2003,23:1559. |
| [7] | Yasuharu H;Kouichi H;Yohachi Y .Crystal growth and electrical properties of lead-free piezoelectric material (Na0.5Bi0.5) TiO3-BaTiO3[J].Japanese Journal of Applied Physics,2001,40(01):5722. |
| [8] | Francios B;Katrin B;Morgane R et al.Low temperature sintering and high piezoelectric properties of strontium doped PNZT-PNN ceramics processed via the columbite route[J].Journal of the European Ceramic Society,2007,27:3613. |
| [9] | 贺连星,李承恩.锰掺杂对硬性 PZT材料压电性能的影响[J].无机材料学报,2000(02):293-298. |
| [10] | 初宝进,李国荣,江向平,陈大任.Na1/2Bi1/2TiO3-BaTiO3系陶瓷压电性?及弛豫相变研究[J].无机材料学报,2000(05):815-821. |
| [11] | Smolenskii G A;Isupov V A;Agranovskaya et al.Ferroelectrics with diffuse phase transition[J].Soviet physics Solid State,1996,2(11):2584. |
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%