01418nas a2200205   4500008004100000022001400041245008100055210006900136260006900205300001200274490000800286520070600294653001201000653001601012653002401028100002001052700001601072700001201088856011201100       2005                        eng d  a0921-510700aPreparation of nanocrystalline ferroelectric CaBi2TaO9 by citrate gel method0 aPreparation of nanocrystalline ferroelectric CaBi2TaO9 by citrat  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcMAR  a159-1610 v1173 a<p>A gel was formed when an aqueous solution of CaCl2, BiCl3, TaF5 and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 600degreesC yielded the nano-crystallites of ternary oxide, CaBi2Ta2O9 (CBT) as confirmed by X-ray diffraction study (XRD). Particle size and morphology was studied by transmission electron spectroscopy (TEM). Ferroelectric hysteresis loop parameters such as remnant polarization (P-r) and coercive field (E-C) are also determined. TEM investigations revealed that the average particle size of the polycrystalline powder is 40 nm. The room temperature dielectric constant was found to be 90. (C) 2004 Elsevier B.V All rights reserved.</p>10aBismuth10adiffraction10aElectron microscopy1 aGaikwad, S., P.1 aPasricha, R1 aRavi, V  uhttps://library.ncl.res.in/content/preparation-nanocrystalline-ferroelectric-cabi2tao9-citrate-gel-method-0