Browse > Article

Preparation of $Pb(Sc_{1/2}Ta_{1/2})O_3$, by the molten salt synthesis method  

Park, Kyung-Bong (School of Advanced Materials Engineering, Andong National University)
Kim, Tae-Huei (School of Advanced Materials Engineering, Andong National University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.15, no.3, 2005 , pp. 99-103 More about this Journal
Abstract
Lead scandium tantalate powders were prepared by a molten salt synthesis method using NaCl-KCl as a flux. Variations in phase formation and particle morphology were investigated for the temperature range from $700^{\circ}C\;to\;800^{\circ}C$. $Pb(Sc_{1/2}Ta_{1/2})O_3$, with pure perovskite phase was formed at $750^{\circ}C$ fur 2 hrs and the prepared powder had the cubic-like morphology and the average particle size below $0.5{\mu}m$. The results were discussed with respect to DTA, X-ray diffraction, and microstructural characterization data.
Keywords
Relaxer dielectrics; Molten salt; Perovskite; $Pb(Sc_{1/2}Ta_{1/2})O_3$; Pyrochlore;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Uchino and S. Nomura, 'Review: electrostrictive effect in perovskites and its transducer applications', J. Mater. Sci. 16 (1981) 569   DOI
2 A. Halliyal, U. Kumar, R.E. Newnham and L.E. Cross, 'Stabilization of the perovskite phase and dielectric properties of ceramics in the $Pb(Zn_{1/3}Nb_{2/3})O_3-BaTiO_3$ system', Am. Ceram. Soc. Bull. 66[4] (1987) 671
3 K.H. Yoon, Y.S. Cho and D.H. Kang, 'The formation and phase stability of lead magnesium niobate in the presence of a molten flux', J. Mater. Sci. 30 (1995) 4244   DOI   ScienceOn
4 R.H. Ardent, J.H. Rosolowski and J.W. Szmaszek, 'Lead zirconate titanate ceramics from molten salt solvent synthesized powders', Mat. Res. Bull. 14[5] (1979) 703   DOI   ScienceOn
5 JCPDS-International Centre for Diffraction Data, 45-0554
6 T. Kimura and T. Yamaguchi, 'Fused salt synthesis of $Bi_4Ti_3O_{12}$', Ceram. Int. 9[1] (1983) 13   DOI   ScienceOn
7 T. Kimura and T. Yamaguchi, 'Morphology control of electronic ceramic powders by molten salt synthesis', Advances in Ceramics 21 (1987) 169
8 Y. Hayashi, T. Kimura and T. Yamaguchi, 'Preparation of acicular NiZn-ferrite powders', J. Mater. Sci. 21 (1986) 2876
9 K.B. Park and K.H. Yoon, 'Effect of initial particle size on the dielectric properties of $Pb(Fe_{1/2}Nb_{1/2})O_3$ ceramics', Ferroelectrics 133 (1992) 1   DOI
10 K.B. Park and K.H. Yoon, 'Dielectric properties of $xPb(Fe_{1/2}Nb_{1/2})O_3-(1-x)\;Pb(Co_{1/3}Nb_{2/3})O_3$ ceramics pre¬pared by molten salt synthesis method', Ferroelectrics 145 (1993) 195
11 S.Y. Chen, C.M. Wang and S.Y. Cheng, 'Reaction kinetics of perovskite phase formation in lead zinc magnesium niobate ceramics', J. Am. Ceram. Soc. 74[10] (1991) 2506   DOI
12 K. Uchino, 'Electrostrictive actuators : materials and application', Am. Ceram. Soc. Bull. 65[4] (1986) 647
13 K.B. Park and K.H. Yoon, 'Reaction mechanisms in the formation of $Pb(Fe_{1/2}Nb_{1/2})O_3$ by molten salt synthesis method', Ferroelectrics 133 (1992) 283   DOI
14 J.R. Belsick, A. Halliyal, U. Kumar and R.E. Newnham, 'Phase relations and dielectric properties of ceramics in the system $Pb(Zn_{1/3}Nb_{2/3})O_3-SrTiO_3-PbTiO_3$', Am. Ceram. Soc. Bull. 66[4] (1987) 671
15 F. Chu, G.R. Fox and N. Setter, 'Dielectric properties of complex perovskite lead scandium tantalate under Dc bias', J. Am. Ceram. Soc. 81[6] (1998) 1577   DOI   ScienceOn
16 K.B. Park, 'Preparation of $Pb(Sc_{1/2}Nb_{1/2})O_3$ powders by the molten salt synthesis method', J. Kor. Ass. Crystal Growth 7[3] (1997) 400
17 M.P. Kassarjian, R.E. Newnham and J.V. Biggers, 'Sequence of reactions during calcining of a lead-iron niobate dielectric ceramic', Am. Ceram. Soc. Bull. 64[8] (1985) 1103