Effect of temperature on cation disorder in ABi2Nb2O9 (A=Sr, Ba)
作者： Brendan J. Kennedy , Ismunandar
DOI: 10.1039/A806760K
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摘要: The influence of thermal annealing on cation disorder in ABi 2 Nb 2 O 9 (A=Sr, Ba) has been studied using synchrotron powder X-ray diffraction methods. BaBi adopts a tetragonal (I4 1 /mmm) structure, whilst SrBi is orthorhombic, space group A2 1 am, irrespective the conditions. In both complexes A-type cations, Sr and Ba, are disordered over perovskite Bi 2 layers. Quenching samples from high temperature results slight increase cell volume degree disorder, extent being greater Ba complex. Variable studies also reported.
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sci-hub.se 参考文章(12)
A. Castro, P. Millan, R. Enjalbert, Structural evolution of the Aurivillius framework in the solid solutions Bi2WO6-Sb2WO6 Materials Research Bulletin. ,vol. 30, pp. 871- 882 ,(1995) , 10.1016/0025-5408(95)00066-6
D.J. Buttrey, T. Vogt, U. Wildgruber, W.R. Robinson, Structural Refinement of the High Temperature Form of Bi2MoO6 Journal of Solid State Chemistry. ,vol. 111, pp. 118- 127 ,(1994) , 10.1006/JSSC.1994.1206
T. M. Sabine, B. A. Hunter, W. R. Sabine, C. J. Ball, Analytical Expressions for the Transmission Factor and Peak Shift in Absorbing Cylindrical Specimens Journal of Applied Crystallography. ,vol. 31, pp. 47- 51 ,(1998) , 10.1107/S0021889897006961
T. M. Sabine, B. J. Kennedy, R. F. Garrett, G. J. Foran, D. J. Cookson, The Performance of the Australian Powder Diffractometer at the Photon Factory, Japan Journal of Applied Crystallography. ,vol. 28, pp. 513- 517 ,(1995) , 10.1107/S0021889894014627
E. C. SUBBARAO, Crystal chemistry of mixed Bismuth oxides with layer-type structure Journal of the American Ceramic Society. ,vol. 45, pp. 166- 169 ,(1962) , 10.1111/J.1151-2916.1962.TB11113.X
Thomas Rentschler, Substitution of lead into the bismuth oxide layers of the n = 2- and n = 3-aurtvillius phases Materials Research Bulletin. ,vol. 32, pp. 351- 369 ,(1997) , 10.1016/S0025-5408(96)00198-5
Ismunandar, Brendan J. Kennedy, Gunawan, Marsongkohadi, Structure ofABi2Nb2O9(A= Sr, Ba): Refinement of Powder Neutron Diffraction Data Journal of Solid State Chemistry. ,vol. 126, pp. 135- 141 ,(1996) , 10.1006/JSSC.1996.0321
L. Korzunova, PmP118. Piezoelectric ceramics for high-temperature transducers Ferroelectrics. ,vol. 134, pp. 175- 180 ,(1992) , 10.1080/00150199208015584
K.V.R. Prasad, K.B.R. Varma, Dielectric, thermal and pyroelectric properties of ferroelectric bismuth vanadate single crystals Materials Chemistry and Physics. ,vol. 38, pp. 406- 410 ,(1994) , 10.1016/0254-0584(94)90222-4
Brett A Hunter, Brendan J Kennedy, Cation disorder in the ferroelectric Aurivillius phase PbBi2Nb2O9 : an anamolous dispersion X-ray diffraction study Solid State Ionics. ,vol. 112, pp. 281- 289 ,(1998) , 10.1016/S0167-2738(98)00222-7