采用高温固相烧结法制备了Ba1-xSrxTi0.88Sn0.12O3(x=0.10,0.20,0.30,0.40,0.50)陶瓷,研究了Sr含量及烧结温度对Ba1-xSrxTi0.88Sn0.12O3陶瓷结构与介电性能的影响.XRD初步分析表明Ba1-xSrxTi0.88Sn0.12O3陶瓷在室温为立方钙钛矿结构.进一步的研究表明Ba1-xSrxTi0.88Sn0.12O3陶瓷的介电性能与对A位、B位进行的离子取代密切相关.随着Sr含量的增加,不同烧结温度下Ba1-xSrxTi0.88Sn0.12O3陶瓷的介电性能下降,相变温度Tc移向低温.尽管在所研究的组分范围内Ba1-xSrxTi0.88Sn0.12O3表现出扩散相变铁电体的特征,但是典型的介电弛豫行为并没有被观察到.
参考文献
| [1] | LINES M E;GLASS A M.Principles and Application of Ferroelectrics and Related Materials[M].Oxford:Oxford Uni Press,1977:241-250. |
| [2] | WANG Y;LI L;QI J et al.Ferroelectric characteristics of ytterbium-doped barium zirconium titanate ceramics[J].Int Ceram Journal,2002,28:657-661. |
| [3] | YASUDA N;OHWA H;ASANO S .Dielectric and phase transitions of Ba(Ti1-xSnx)O3 solid solution[J].Japanese Journal of Applied Physics Part 2,1996,35:5099-5103. |
| [4] | Dobal PS.;Katiyar RS.;Yu Z.;Guo R.;Bhalla AS.;Dixit A. .Micro-Raman scattering and dielectric investigations of phase transition behavior in the BaTiO3-BaZrO3 system[J].Journal of Applied Physics,2001(12):8085-8091. |
| [5] | Lemanov VV.;Syrnikov PP.;Tarakanov EA.;Smirnova EP. .PHASE TRANSITIONS AND GLASSLIKE BEHAVIOR IN SR1-XBAXTIO3[J].Physical Review.B.Condensed Matter,1996(5):3151-3157. |
| [6] | ZHOU L;VILARINHO P M;BAPTISTA J L .Dependence of the structural and dielectric properties of Ba1-xSrxTiO3 ceramics solid solutions on raw material processing[J].Journal of the European Ceramic Society,1999,19:2015-2020. |
| [7] | MITSUI T;WESTPHAL W B .Dielectric and X-ray studies of CaxBa1-xTiO3 and CaxSr1-xTiO3[J].Physical Review,1961,124(05):1354-1359. |
| [8] | MOLOKHIA N M;ISSA M A A;NASSER S A .Dielectric and X-ray diffraction studies of barium titanate doped with ytterbium[J].Journal of the American Ceramic Society,1984,67(02):289-291. |
| [9] | SMOLENSKII G A;ROZGACHEV K I .Dielectric properties of solid solutions in the system of barium titanate-strontium titanate[J].Zhurnal Tekhnicheskoi Fiziki,1954,24:1751-1760. |
| [10] | WANG H W;HALL D A.The effect of dysprosium on the microstructure and dielectric of Ba1-xSrxTiO3 ceramics[A].Greenville,SC,USA:IEEE,1992:51-54. |
| [11] | Tiwari VS.;Pandey D.;Singh N. .DIFFUSE FERROELECTRIC TRANSITION AND RELAXATIONAL DIPOLAR FREEZING IN (BA,SR)TIO3[J].Journal of Physics. Condensed Matter,1995(7):1441-1460. |
| [12] | JEON J H .Effect of SrTiO3 concentration and sintering temperature on microstructure and dielectric constant of Ba1-xSrxTiO3[J].Journal of the European Ceramic Society,2004,24:1045-1048. |
| [13] | WEST A R;苏勉曾;谢高阳;申泮文,.固体化学及其应用[M].上海:复旦大学出版社,1989:405-407. |
| [14] | UCHINO K;NOMURA S .Critical exponents of the dielectric constants in diffused phase transitions crystals[J].Ferroelectrics Letters,1982,44(03):55-61. |
| [15] | Dielectric relaxation behavior in barium stannate titanate ferroelectric ceramics with diffused phase transition[J].Applied physics letters,2003(10):2031-2033. |
| [16] | Zhi Yu;Chen Ang;Ruyan Guo;A. S. Bhalla .Ferroelectric-relaxor behavior of Ba(Ti_(0.7)Zr_(0.3))O_(3) ceramics[J].Journal of Applied Physics,2002(5):2655-2657. |
| [17] | BEDNORZ J G;MULLER K A.Sr1-xCaxTiO3:An XY quantum ferroelectric with transition to randomness[J].Physical Review Letters,1984(25):2289-2292. |
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%