Effect of microwave processing on structural, dielectric and ferroelectric properties of calcium-doped BaTiO3 ceramics
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Calcium-doped barium titanate, Ba(1−x)CaxTiO3 (where x = 0.02,0.04,0.06 & 0.08)/BCT1,BCT2, BCT3 & BCT4, ferroelectric ceramics were synthesized by a microwave processing technique. For the formation of a single perovskite phase with a dense grain morphology, microwave sintering temperature was optimized at 1100 oC for 1 h. SEM characterization of the microwave sintered BCT samples showed dense and homogeneous packing of sub-micrometer size grains. The BCT2 system showed the highest room temperature (RT) dielectric constant (εr). The dielectric property vs. temperature behavior revealed a diffuse phase transition nature. The occurrence of polarization vs. electric field (P-E) loops confirmed the ferroelectric nature of the microwave sintered BCT samples.
Abstract
Calcium-doped barium titanate, Ba(1−x)CaxTiO3 (where x = 0.02,0.04,0.06 & 0.08)/BCT1,BCT2, BCT3 & BCT4, ferroelectric ceramics were synthesized by a microwave processing technique. For the formation of a single perovskite phase with a dense grain morphology, microwave sintering temperature was optimized at 1100 oC for 1 h. SEM characterization of the microwave sintered BCT samples showed dense and homogeneous packing of sub-micrometer size grains. The BCT2 system showed the highest room temperature (RT) dielectric constant (εr). The dielectric property vs. temperature behavior revealed a diffuse phase transition nature. The occurrence of polarization vs. electric field (P-E) loops confirmed the ferroelectric nature of the microwave sintered BCT samples.
참고문헌 (29)
- P. Victor, , Integrated Ferroelectrics, 54, pp.747~754 (2003)
- V.S. Tiwari, , J.Phys.Condens.Matter, 7, pp.1441~1460 (1995)
- Y. Zhi, , J.Appl.Phys, 92, pp.2655~2657 (2002)
- Z. Yao, , Y.Liu and M.Cao.,Mat.Chem.& Phys, 109, pp.475~481 (2008)
- C. Masingboon, , Mater.Chem.& Phy, 109, pp.262~270 (2006)
- W.P. Chen, , J.Alloys Compd, 422, pp.L9~L12 (2006)
- N. Baskaran, , Mater.Chem.& Phys, 77(3), pp.889~894 (2002)
- E.C.Subbarao, , Colloids Surf.A, 133, pp.3~11 (1998)
- A.W.M. de Laat, , Colloids Surf.A, 98, pp.61~71 (1995)
- B. Jiang, , Physica B, 291, pp.203~212 (2000)
- A. Beauge, , J.Mat.Sci, 18, pp.3041~3046 (1983)
- J.Bera, , Mater.Lett, 59, pp.135~138 (2005)
- D.F.K.Hennings, , J.Eur.Ceram.Soc, 13, pp.81~88 (1994)
- S. Gopalan, , J.Am.Ceram.Soc, 82(10), pp.2887~2889 (1999)
- C.T. Hu, , J.Appl.Phys, 37(1), pp.186~191 (1998)
- E.T. Thostenson, , Compos.Part A, 30, pp.1055~1071 (1999)
- H,R, Rukmini, , Mater.Chem.Phys, 64, pp.171~178 (2000)
- B, Jaffe, "Piezoelectric Ceramics" (1971), Academic
- B.D Cullity., "Elements of x-ray diffraction, 2nd ed" (1978), Addison- Wesley
- Q. Jia, , Materials Letters, 63, pp.464~466 (2009)
- E. Wu, "POWD, an interactive powder diffraction data interpretation and indexing program, Ver. 2.1, School of Physical Science", Finder’s University of South Australia
- D. Kang, , J.Eur.Ceram.Soc, 23, pp.515~518 (2003)
- J.Ravez, , Solid State Sci, 2, pp.525~529 (2000)
- G.Arlt, , J.Appl.Phys, 58, pp.1619~1625 (1985)
- M.McNeal, , J.Appl.Phys, 83, pp.3288~3297 (1998)
- G.Arlt, , J.Appl.Phys, 58, pp.1619~1625 (1985)
- N.Setter, , J.Mat.Sci, 15, pp.2478~2482 (1980)
- T.M.Shaw, , Annual Review of Materials Science, 30, pp.263~ (2000)
- P. Kumar, , Japanese J. of Applied Physics, 43(4A), pp.1501~1506 (2004)